./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_3_3.i --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_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/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_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/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_498718df-3bc5-446a-8b61-b37c807739b0/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 bf18a45b9b9a30137533b9517bddb2c27979a6060c07746e0407bf72765a3792 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:56:51,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:56:51,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:56:51,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:56:51,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:56:51,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:56:51,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:56:51,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:56:51,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:56:51,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:56:51,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:56:51,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:56:51,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:56:51,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:56:51,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:56:51,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:56:51,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:56:51,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:56:51,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:56:51,756 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:56:51,757 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:56:51,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:56:51,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:56:51,762 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:56:51,763 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:56:51,763 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:56:51,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:56:51,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:56:51,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:56:51,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:56:51,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:56:51,765 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:56:51,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:56:51,766 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_498718df-3bc5-446a-8b61-b37c807739b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf18a45b9b9a30137533b9517bddb2c27979a6060c07746e0407bf72765a3792 [2024-11-08 23:56:52,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:56:52,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:56:52,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:56:52,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:56:52,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:56:52,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_3_3.i Unable to find full path for "g++" [2024-11-08 23:56:54,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:56:54,500 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:56:54,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i [2024-11-08 23:56:54,511 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/5128843cb/1754fa10438749b3864dca76526a0d24/FLAG924bb12cd [2024-11-08 23:56:54,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/5128843cb/1754fa10438749b3864dca76526a0d24 [2024-11-08 23:56:54,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:56:54,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:56:54,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:56:54,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:56:54,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:56:54,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb61a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54, skipping insertion in model container [2024-11-08 23:56:54,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:56:54,803 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[1226,1239] [2024-11-08 23:56:54,837 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[2828,2841] [2024-11-08 23:56:54,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:56:54,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:56:54,868 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[1226,1239] [2024-11-08 23:56:54,885 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[2828,2841] [2024-11-08 23:56:54,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:56:54,908 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:56:54,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54 WrapperNode [2024-11-08 23:56:54,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:56:54,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:56:54,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:56:54,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:56:54,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,954 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2024-11-08 23:56:54,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:56:54,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:56:54,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:56:54,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:56:54,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:56:54,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:56:54,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:56:54,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:56:54,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:54" (1/1) ... [2024-11-08 23:56:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:56:55,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:56:55,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:56:55,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:56:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:56:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:56:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:56:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:56:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:56:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:56:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:56:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:56:55,186 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:56:55,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:56:55,479 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-08 23:56:55,479 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:56:55,566 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:56:55,567 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:56:55,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:55 BoogieIcfgContainer [2024-11-08 23:56:55,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:56:55,568 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:56:55,568 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:56:55,580 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:56:55,580 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:55" (1/1) ... [2024-11-08 23:56:55,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:56:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:55,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-08 23:56:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-08 23:56:55,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:56:55,658 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:55,989 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 23:56:56,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2024-11-08 23:56:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-08 23:56:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:56:56,049 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:56,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:56,162 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 23:56:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-11-08 23:56:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-11-08 23:56:56,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:56:56,205 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:56,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2024-11-08 23:56:56,943 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-11-08 23:56:56,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:56:56,944 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:57:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:04,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 23:57:04,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:22,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 23:57:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2024-11-08 23:57:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-08 23:57:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:57:26,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:26,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:57:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:32,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 23:57:32,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-11-08 23:57:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-08 23:57:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 23:57:43,202 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:43,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:43,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:57:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:43,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:57:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:43,285 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 23:57:43,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:57:43 ImpRootNode [2024-11-08 23:57:43,320 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:57:43,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:57:43,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:57:43,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:57:43,339 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:55" (3/4) ... [2024-11-08 23:57:43,342 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:57:43,344 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:57:43,344 INFO L158 Benchmark]: Toolchain (without parser) took 48806.09ms. Allocated memory is still 192.9MB. Free memory was 158.0MB in the beginning and 162.1MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:43,346 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:43,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.16ms. Allocated memory is still 192.9MB. Free memory was 157.5MB in the beginning and 143.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:57:43,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.20ms. Allocated memory is still 192.9MB. Free memory was 143.8MB in the beginning and 142.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:57:43,349 INFO L158 Benchmark]: Boogie Preprocessor took 30.53ms. Allocated memory is still 192.9MB. Free memory was 142.2MB in the beginning and 140.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:43,350 INFO L158 Benchmark]: RCFGBuilder took 581.18ms. Allocated memory is still 192.9MB. Free memory was 140.7MB in the beginning and 122.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:57:43,351 INFO L158 Benchmark]: CodeCheck took 47751.50ms. Allocated memory is still 192.9MB. Free memory was 122.4MB in the beginning and 56.2MB in the end (delta: 66.1MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2024-11-08 23:57:43,352 INFO L158 Benchmark]: Witness Printer took 7.18ms. Allocated memory is still 192.9MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:43,354 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 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 20.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 20.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 30 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 335 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 17.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 13.6s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 97. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L93] CALL, EXPR f(IN) VAL [\old(x)=2] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) VAL [IN=2] [L93] CALL, EXPR fp(IN) VAL [\old(x)=2] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) VAL [IN=2] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=3] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L95] RET, EXPR f(x) VAL [IN=2, x=3] [L95] CALL, EXPR fp(x) VAL [\old(x)=3] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L95] RET, EXPR fp(x) VAL [IN=2, x=3] [L95] x = x - f(x)/fp(x) [L97] CALL, EXPR f(x) VAL [\old(x)=4] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L97] RET, EXPR f(x) VAL [IN=2, x=4] [L97] CALL, EXPR fp(x) VAL [\old(x)=4] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L97] RET, EXPR fp(x) VAL [IN=2, x=4] [L97] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=2] [L102] reach_error() VAL [IN=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.16ms. Allocated memory is still 192.9MB. Free memory was 157.5MB in the beginning and 143.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.20ms. Allocated memory is still 192.9MB. Free memory was 143.8MB in the beginning and 142.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.53ms. Allocated memory is still 192.9MB. Free memory was 142.2MB in the beginning and 140.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 581.18ms. Allocated memory is still 192.9MB. Free memory was 140.7MB in the beginning and 122.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 47751.50ms. Allocated memory is still 192.9MB. Free memory was 122.4MB in the beginning and 56.2MB in the end (delta: 66.1MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. * Witness Printer took 7.18ms. Allocated memory is still 192.9MB. Free memory is still 162.1MB. 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 23:57:43,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/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_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/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_498718df-3bc5-446a-8b61-b37c807739b0/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 bf18a45b9b9a30137533b9517bddb2c27979a6060c07746e0407bf72765a3792 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:57:45,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:57:46,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 23:57:46,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:57:46,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:57:46,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:57:46,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:57:46,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:57:46,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:57:46,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:57:46,078 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:57:46,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:57:46,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:57:46,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:57:46,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:57:46,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:57:46,082 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:57:46,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:57:46,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:57:46,083 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:57:46,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:57:46,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:57:46,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:57:46,089 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:57:46,089 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:57:46,089 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:57:46,090 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:46,090 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:57:46,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:57:46,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:57:46,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:57:46,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:57:46,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:57:46,095 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:57:46,095 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:46,096 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:57:46,096 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_498718df-3bc5-446a-8b61-b37c807739b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf18a45b9b9a30137533b9517bddb2c27979a6060c07746e0407bf72765a3792 [2024-11-08 23:57:46,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:57:46,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:57:46,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:57:46,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:57:46,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:57:46,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_3_3.i Unable to find full path for "g++" [2024-11-08 23:57:48,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:57:48,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:57:48,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i [2024-11-08 23:57:49,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/9de3eabcd/522fe9eab46745f288324baeb2173e9a/FLAG3f601a199 [2024-11-08 23:57:49,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/data/9de3eabcd/522fe9eab46745f288324baeb2173e9a [2024-11-08 23:57:49,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:57:49,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:57:49,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:57:49,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:57:49,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:57:49,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386264be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49, skipping insertion in model container [2024-11-08 23:57:49,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:57:49,327 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[1226,1239] [2024-11-08 23:57:49,378 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[2828,2841] [2024-11-08 23:57:49,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:57:49,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:57:49,454 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[1226,1239] [2024-11-08 23:57:49,483 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_498718df-3bc5-446a-8b61-b37c807739b0/sv-benchmarks/c/combinations/gcd_1+newton_3_3.i[2828,2841] [2024-11-08 23:57:49,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:57:49,515 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:57:49,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49 WrapperNode [2024-11-08 23:57:49,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:57:49,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:57:49,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:57:49,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:57:49,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,568 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-08 23:57:49,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:57:49,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:57:49,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:57:49,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:57:49,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,608 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:57:49,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:57:49,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:57:49,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:57:49,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:49" (1/1) ... [2024-11-08 23:57:49,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:57:49,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:57:49,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:57:49,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:57:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:57:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:57:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:57:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:57:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:57:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:57:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:57:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:57:49,794 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:57:49,796 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:58:17,781 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 23:58:17,782 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:58:17,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:58:17,847 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:58:17,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:17 BoogieIcfgContainer [2024-11-08 23:58:17,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:58:17,852 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:58:17,852 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:58:17,864 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:58:17,864 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:58:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:17,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-08 23:58:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-08 23:58:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:58:17,939 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:17,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:17,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:17,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:58:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:18,111 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:18,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:58:18,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:18,405 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 23:58:18,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 23:58:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2024-11-08 23:58:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-08 23:58:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:58:18,688 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:18,688 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:18,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:18,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:18,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:58:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:18,763 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:18,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:58:18,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:18,882 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 23:58:18,883 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:58:18,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 23:58:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-11-08 23:58:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-11-08 23:58:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:58:19,128 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:19,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:19,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:19,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 23:58:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:19,471 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:19,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 23:58:19,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:58:20,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-08 23:58:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2024-11-08 23:58:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-11-08 23:58:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:58:22,796 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:22,797 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:22,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:22,798 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:22,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 23:58:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:23,838 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:26,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 23:58:26,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:58:35,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-08 23:58:44,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 23:58:49,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.94s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 23:58:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2024-11-08 23:58:51,002 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-08 23:58:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:58:51,004 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:51,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:51,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:51,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 23:58:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:52,065 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:55,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 23:58:55,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:03,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-08 23:59:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-11-08 23:59:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-08 23:59:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 23:59:05,024 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:05,024 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:05,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:05,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:05,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498718df-3bc5-446a-8b61-b37c807739b0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process