./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_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_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/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_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/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_542f308d-1ab4-4c1e-b060-7af09de8df2a/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 f6c5808fcdfedd93e514ea4bc51242b78bf5dcc9e332c7faf3dfcc4d6de127e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:05:53,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:05:53,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:05:53,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:05:53,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:05:53,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:05:53,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:05:53,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:05:53,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:05:53,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:05:53,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:05:53,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:05:53,892 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:05:53,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:05:53,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:05:53,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:05:53,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:05:53,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:05:53,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:05:53,895 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:05:53,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:05:53,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:05:53,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:05:53,899 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:05:53,899 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:05:53,900 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:05:53,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:05:53,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:05:53,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:05:53,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:05:53,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:05:53,901 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:05:53,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:05:53,902 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c5808fcdfedd93e514ea4bc51242b78bf5dcc9e332c7faf3dfcc4d6de127e2 [2024-11-09 00:05:54,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:05:54,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:05:54,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:05:54,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:05:54,218 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:05:54,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_2+newton_2_3.i Unable to find full path for "g++" [2024-11-09 00:05:56,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:05:56,471 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:05:56,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i [2024-11-09 00:05:56,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/788932061/9b2951fc8e7e4284b73da634820971ea/FLAG81dcbe97d [2024-11-09 00:05:56,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/788932061/9b2951fc8e7e4284b73da634820971ea [2024-11-09 00:05:56,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:05:56,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:05:56,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:05:56,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:05:56,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:05:56,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c1181e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56, skipping insertion in model container [2024-11-09 00:05:56,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:05:56,794 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[1226,1239] [2024-11-09 00:05:56,837 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[2841,2854] [2024-11-09 00:05:56,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:05:56,857 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:05:56,872 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[1226,1239] [2024-11-09 00:05:56,894 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[2841,2854] [2024-11-09 00:05:56,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:05:56,922 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:05:56,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56 WrapperNode [2024-11-09 00:05:56,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:05:56,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:05:56,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:05:56,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:05:56,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,972 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-09 00:05:56,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:05:56,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:05:56,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:05:56,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:05:56,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:56,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:05:57,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:05:57,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:05:57,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:05:57,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:05:56" (1/1) ... [2024-11-09 00:05:57,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:05:57,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:05:57,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:05:57,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:05:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:05:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:05:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:05:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:05:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:05:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:05:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:05:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:05:57,173 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:05:57,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:05:57,387 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-09 00:05:57,387 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:05:57,466 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:05:57,466 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:05:57,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:05:57 BoogieIcfgContainer [2024-11-09 00:05:57,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:05:57,470 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:05:57,470 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:05:57,482 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:05:57,482 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:05:57" (1/1) ... [2024-11-09 00:05:57,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:05:57,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:05:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-09 00:05:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 00:05:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:05:57,553 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:05:57,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:05:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:05:57,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:05:58,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:05:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 30 states and 38 transitions. [2024-11-09 00:05:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-11-09 00:05:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:05:58,045 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:05:58,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:05:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:05:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:05:58,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:05:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2024-11-09 00:05:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-11-09 00:05:58,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:05:58,178 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:05:58,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:05:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:05:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:05:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:05:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 45 transitions. [2024-11-09 00:05:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-09 00:05:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:05:59,314 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:05:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:05:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 53 transitions. [2024-11-09 00:06:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2024-11-09 00:06:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:06:02,344 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:02,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 60 transitions. [2024-11-09 00:06:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2024-11-09 00:06:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:06:07,255 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:07,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:06:07,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:06:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:06:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:06:07,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:06:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:06:07,330 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-09 00:06:07,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:06:07 ImpRootNode [2024-11-09 00:06:07,359 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:06:07,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:06:07,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:06:07,361 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:06:07,361 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:05:57" (3/4) ... [2024-11-09 00:06:07,364 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:06:07,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:06:07,366 INFO L158 Benchmark]: Toolchain (without parser) took 10845.82ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 142.1MB in the beginning and 202.8MB in the end (delta: -60.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-09 00:06:07,367 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:06:07,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.17ms. Allocated memory is still 169.9MB. Free memory was 141.9MB in the beginning and 131.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-09 00:06:07,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.39ms. Allocated memory is still 169.9MB. Free memory was 131.4MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:06:07,370 INFO L158 Benchmark]: Boogie Preprocessor took 43.19ms. Allocated memory is still 169.9MB. Free memory was 129.4MB in the beginning and 128.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:06:07,371 INFO L158 Benchmark]: RCFGBuilder took 445.96ms. Allocated memory is still 169.9MB. Free memory was 128.3MB in the beginning and 110.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:06:07,372 INFO L158 Benchmark]: CodeCheck took 9889.91ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 110.5MB in the beginning and 202.8MB in the end (delta: -92.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:06:07,373 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 247.5MB. Free memory is still 202.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:06:07,376 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 15 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 423 GetRequests, 342 SyntacticMatches, 9 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/14 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 95. 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) [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 0.30ms. Allocated memory is still 113.2MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.17ms. Allocated memory is still 169.9MB. Free memory was 141.9MB in the beginning and 131.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.39ms. Allocated memory is still 169.9MB. Free memory was 131.4MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.19ms. Allocated memory is still 169.9MB. Free memory was 129.4MB in the beginning and 128.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.96ms. Allocated memory is still 169.9MB. Free memory was 128.3MB in the beginning and 110.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 9889.91ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 110.5MB in the beginning and 202.8MB in the end (delta: -92.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 247.5MB. Free memory is still 202.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:06:07,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/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_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/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_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/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_542f308d-1ab4-4c1e-b060-7af09de8df2a/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 f6c5808fcdfedd93e514ea4bc51242b78bf5dcc9e332c7faf3dfcc4d6de127e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:06:09,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:06:09,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-09 00:06:10,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:06:10,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:06:10,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:06:10,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:06:10,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:06:10,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:06:10,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:06:10,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:06:10,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:06:10,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:06:10,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:06:10,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:06:10,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:06:10,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:06:10,036 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:06:10,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:06:10,037 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:06:10,037 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:06:10,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:06:10,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:06:10,040 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:06:10,040 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:06:10,041 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:06:10,041 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:10,041 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:06:10,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:06:10,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:06:10,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:06:10,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:06:10,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:06:10,043 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:06:10,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:10,043 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:06:10,044 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c5808fcdfedd93e514ea4bc51242b78bf5dcc9e332c7faf3dfcc4d6de127e2 [2024-11-09 00:06:10,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:06:10,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:06:10,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:06:10,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:06:10,520 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:06:10,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_2+newton_2_3.i Unable to find full path for "g++" [2024-11-09 00:06:12,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:06:12,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:06:12,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i [2024-11-09 00:06:12,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/307f92223/2897617faf1f45799c57211b3a48cf4e/FLAG4c2b3c39d [2024-11-09 00:06:12,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/data/307f92223/2897617faf1f45799c57211b3a48cf4e [2024-11-09 00:06:12,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:06:12,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:06:12,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:06:12,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:06:12,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:06:12,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:12" (1/1) ... [2024-11-09 00:06:12,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a533407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:12, skipping insertion in model container [2024-11-09 00:06:12,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:12" (1/1) ... [2024-11-09 00:06:12,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:06:13,174 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[1226,1239] [2024-11-09 00:06:13,212 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[2841,2854] [2024-11-09 00:06:13,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:06:13,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:06:13,259 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[1226,1239] [2024-11-09 00:06:13,286 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_542f308d-1ab4-4c1e-b060-7af09de8df2a/sv-benchmarks/c/combinations/gcd_2+newton_2_3.i[2841,2854] [2024-11-09 00:06:13,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:06:13,324 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:06:13,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13 WrapperNode [2024-11-09 00:06:13,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:06:13,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:06:13,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:06:13,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:06:13,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,389 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-11-09 00:06:13,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:06:13,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:06:13,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:06:13,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:06:13,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:06:13,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:06:13,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:06:13,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:06:13,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:13" (1/1) ... [2024-11-09 00:06:13,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:06:13,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:06:13,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:06:13,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:06:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:06:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:06:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:06:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:06:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:06:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:06:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:06:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:06:13,689 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:06:13,691 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:06:38,155 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 00:06:38,155 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:06:38,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:06:38,231 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:06:38,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:38 BoogieIcfgContainer [2024-11-09 00:06:38,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:06:38,236 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:06:38,237 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:06:38,247 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:06:38,248 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:38" (1/1) ... [2024-11-09 00:06:38,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:06:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-09 00:06:38,317 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 00:06:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:06:38,322 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:38,323 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:38,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:06:38,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:06:38,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:06:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:38,449 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:06:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:38,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:06:38,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:06:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:39,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:06:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-09 00:06:39,619 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-09 00:06:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:06:39,621 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:39,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:39,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:06:39,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:06:39,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-09 00:06:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:39,718 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:06:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:39,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:06:39,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:06:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:39,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-09 00:06:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2024-11-09 00:06:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-11-09 00:06:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:06:40,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,183 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:40,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:06:40,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:06:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 00:06:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,470 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:06:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 00:06:40,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:06:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:41,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 00:06:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2024-11-09 00:06:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-09 00:06:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:06:48,843 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:06:48,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:06:48,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 00:06:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:49,274 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:06:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:49,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 00:06:49,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:07:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:07:02,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-09 00:07:34,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 00:08:01,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 00:08:03,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 00:08:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:08:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2024-11-09 00:08:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-09 00:08:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:08:04,285 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:08:04,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:08:04,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:08:04,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:08:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 00:08:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:04,802 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:08:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:05,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 00:08:05,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:09:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:09:40,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-09 00:10:37,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 00:11:51,024 WARN L286 SmtUtils]: Spent 18.99s on a formula simplification. DAG size of input: 56 DAG size of output: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:12:21,034 WARN L286 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:13:47,718 WARN L286 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:14:03,913 WARN L286 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:14:13,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:14:25,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:14:36,406 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~y~0#1|)) (.cse2 ((_ sign_extend 24) |c_ULTIMATE.start_gcd_test_~a#1|))) (and (let ((.cse3 (bvslt .cse0 (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse1 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| ((_ extract 7 0) (bvsrem ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse0))) .cse1))) (not (= (_ bv0 32) .cse1)) (= ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse1 .cse2))) (_ bv0 32))))) .cse3) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (not (= (_ bv0 32) .cse4)) (= |c_ULTIMATE.start_gcd_test_~a#1| ((_ extract 7 0) (bvsrem .cse0 .cse4))) (= ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse4 .cse2))) (_ bv0 32))))) (not .cse3)))) (not (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse0 .cse2))))))) is different from false [2024-11-09 00:16:00,400 WARN L286 SmtUtils]: Spent 22.23s on a formula simplification. DAG size of input: 38 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:16:10,472 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse0 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~y~0#1|)) (.cse2 ((_ sign_extend 24) |c_ULTIMATE.start_gcd_test_~a#1|))) (and (let ((.cse3 (bvslt .cse0 (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse1 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| ((_ extract 7 0) (bvsrem ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse0))) .cse1))) (not (= (_ bv0 32) .cse1)) (= ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse1 .cse2))) (_ bv0 32))))) .cse3) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (not (= (_ bv0 32) .cse4)) (= |c_ULTIMATE.start_gcd_test_~a#1| ((_ extract 7 0) (bvsrem .cse0 .cse4))) (= ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse4 .cse2))) (_ bv0 32))))) (not .cse3)))) (not (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse0 .cse2)))))))) is different from true [2024-11-09 00:16:20,615 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~y~0#1|)) (.cse3 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~g~0#1|))) (and (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse2 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (= |c_ULTIMATE.start_main1_~g~0#1| ((_ extract 7 0) (bvsrem ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse1))) .cse2))) (not (= (_ bv0 32) .cse2)) (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse2 .cse3)))))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (not (= (_ bv0 32) .cse4)) (= |c_ULTIMATE.start_main1_~g~0#1| ((_ extract 7 0) (bvsrem .cse1 .cse4))) (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse4 .cse3))))))) (not .cse0)))) (not (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse1 .cse3))))))) is different from false [2024-11-09 00:17:44,338 WARN L286 SmtUtils]: Spent 23.60s on a formula simplification. DAG size of input: 38 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:17:54,407 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~y~0#1|)) (.cse3 ((_ sign_extend 24) |c_ULTIMATE.start_main1_~g~0#1|))) (and (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse2 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (= |c_ULTIMATE.start_main1_~g~0#1| ((_ extract 7 0) (bvsrem ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse1))) .cse2))) (not (= (_ bv0 32) .cse2)) (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse2 .cse3)))))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_24| (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) |v_ULTIMATE.start_gcd_test_~a#1_24|))) (and (not (= (_ bv0 32) .cse4)) (= |c_ULTIMATE.start_main1_~g~0#1| ((_ extract 7 0) (bvsrem .cse1 .cse4))) (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse4 .cse3))))))) (not .cse0)))) (not (= (_ bv0 32) ((_ sign_extend 24) ((_ extract 7 0) (bvsrem .cse1 .cse3)))))))) is different from true [2024-11-09 00:17:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 43 states and 67 transitions. [2024-11-09 00:17:54,587 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2024-11-09 00:17:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:17:54,588 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:54,589 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:17:54,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:17:54,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:17:54,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 00:17:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:55,121 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:17:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:55,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 00:17:55,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:19:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:19:00,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-09 00:19:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:19:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 43 states and 67 transitions. [2024-11-09 00:19:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2024-11-09 00:19:26,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:19:26,047 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:19:26,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:19:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:19:26,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:19:26,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 00:19:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:19:26,724 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:19:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:19:27,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 00:19:27,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:20:43,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542f308d-1ab4-4c1e-b060-7af09de8df2a/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-09 00:21:04,583 WARN L286 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 78 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)