./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_2_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/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_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/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_bf7f182c-4e73-4223-b86a-52ff090a388e/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 289de09ea2f682a4c4668d6184c2af95807d8c0a5f7625690403c1e8c073d7a9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:04:49,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:04:49,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:04:49,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:04:49,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:04:49,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:04:49,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:04:49,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:04:49,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:04:49,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:04:49,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:04:49,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:04:49,770 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:04:49,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:04:49,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:04:49,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:04:49,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:04:49,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:04:49,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:04:49,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:04:49,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:04:49,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:04:49,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:04:49,782 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:04:49,782 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:04:49,783 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:04:49,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:04:49,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:49,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:04:49,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:04:49,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:04:49,785 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:04:49,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:04:49,786 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_bf7f182c-4e73-4223-b86a-52ff090a388e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289de09ea2f682a4c4668d6184c2af95807d8c0a5f7625690403c1e8c073d7a9 [2024-11-08 23:04:50,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:04:50,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:04:50,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:04:50,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:04:50,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:04:50,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_4.i Unable to find full path for "g++" [2024-11-08 23:04:52,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:04:52,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:04:52,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i [2024-11-08 23:04:52,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/984d996dc/7e9c29a1818c4c3a8dd0565783c729c8/FLAGe77f5b2d4 [2024-11-08 23:04:52,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/984d996dc/7e9c29a1818c4c3a8dd0565783c729c8 [2024-11-08 23:04:52,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:04:52,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:04:52,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:52,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:04:52,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:04:52,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:52" (1/1) ... [2024-11-08 23:04:52,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a70a618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:52, skipping insertion in model container [2024-11-08 23:04:52,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:52" (1/1) ... [2024-11-08 23:04:52,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:04:53,137 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[1224,1237] [2024-11-08 23:04:53,171 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[2827,2840] [2024-11-08 23:04:53,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:53,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:04:53,201 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[1224,1237] [2024-11-08 23:04:53,215 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[2827,2840] [2024-11-08 23:04:53,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:53,236 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:04:53,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53 WrapperNode [2024-11-08 23:04:53,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:53,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:53,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:04:53,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:04:53,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,279 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-11-08 23:04:53,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:53,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:04:53,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:04:53,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:04:53,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:04:53,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:04:53,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:04:53,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:04:53,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:04:53,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:04:53,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:04:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:04:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:04:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 23:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 23:04:53,460 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:04:53,463 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:04:53,721 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 23:04:53,721 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:04:53,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:04:53,811 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:04:53,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:53 BoogieIcfgContainer [2024-11-08 23:04:53,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:04:53,813 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:04:53,814 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:04:53,826 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:04:53,826 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:53" (1/1) ... [2024-11-08 23:04:53,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:04:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-08 23:04:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-08 23:04:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:04:53,893 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:04:54,239 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 23:04:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-08 23:04:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-08 23:04:54,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 23:04:54,304 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:54,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:04:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:04:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-08 23:04:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-08 23:04:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:04:54,529 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:04:54,578 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 23:04:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-08 23:04:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-08 23:04:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:04:54,614 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:04:54,928 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 23:04:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 46 transitions. [2024-11-08 23:04:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-08 23:04:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:04:55,284 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:55,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:04:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:04:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 42 states and 57 transitions. [2024-11-08 23:04:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2024-11-08 23:04:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:04:56,117 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:56,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:56,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:56,238 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 23:04:56,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:04:56 ImpRootNode [2024-11-08 23:04:56,286 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:04:56,287 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:04:56,287 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:04:56,287 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:04:56,288 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:53" (3/4) ... [2024-11-08 23:04:56,291 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:04:56,292 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:04:56,295 INFO L158 Benchmark]: Toolchain (without parser) took 3438.49ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 97.3MB in the end (delta: 38.9MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-08 23:04:56,296 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:56,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.47ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 122.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:04:56,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.37ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 120.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:56,299 INFO L158 Benchmark]: Boogie Preprocessor took 27.43ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:04:56,300 INFO L158 Benchmark]: RCFGBuilder took 504.29ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 101.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:04:56,302 INFO L158 Benchmark]: CodeCheck took 2472.67ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 97.3MB in the end (delta: 4.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-11-08 23:04:56,302 INFO L158 Benchmark]: Witness Printer took 7.34ms. Allocated memory is still 167.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:56,307 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 4 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 54 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 428 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 102. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L100] CALL, EXPR f(IN) VAL [\old(x)=2] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) VAL [IN=2] [L100] CALL, EXPR fp(IN) VAL [\old(x)=2] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) VAL [IN=2] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=3] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L102] RET, EXPR f(x) VAL [IN=2, x=3] [L102] CALL, EXPR fp(x) VAL [\old(x)=3] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L102] RET, EXPR fp(x) VAL [IN=2, x=3] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=2] [L109] 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 115.3MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.47ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 122.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.37ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 120.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.43ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.29ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 101.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2472.67ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 97.3MB in the end (delta: 4.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 7.34ms. Allocated memory is still 167.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:04:56,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/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_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/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_bf7f182c-4e73-4223-b86a-52ff090a388e/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 289de09ea2f682a4c4668d6184c2af95807d8c0a5f7625690403c1e8c073d7a9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:04:59,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:04:59,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 23:04:59,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:04:59,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:04:59,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:04:59,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:04:59,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:04:59,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:04:59,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:04:59,329 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:04:59,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:04:59,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:04:59,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:04:59,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:04:59,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:04:59,335 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:04:59,335 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:04:59,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:04:59,339 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:04:59,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:04:59,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:04:59,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:04:59,341 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:04:59,341 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:04:59,342 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:04:59,342 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:04:59,343 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:04:59,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:04:59,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:59,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:04:59,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:04:59,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:04:59,349 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:04:59,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:04:59,350 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:04:59,350 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_bf7f182c-4e73-4223-b86a-52ff090a388e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289de09ea2f682a4c4668d6184c2af95807d8c0a5f7625690403c1e8c073d7a9 [2024-11-08 23:04:59,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:04:59,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:04:59,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:04:59,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:04:59,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:04:59,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_4.i Unable to find full path for "g++" [2024-11-08 23:05:02,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:05:03,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:05:03,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i [2024-11-08 23:05:03,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/f8416f5ab/0b67fb6cbb2844c68512b989d939b4d3/FLAG6acaa8083 [2024-11-08 23:05:03,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/data/f8416f5ab/0b67fb6cbb2844c68512b989d939b4d3 [2024-11-08 23:05:03,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:05:03,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:05:03,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:05:03,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:05:03,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:05:03,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2886e8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03, skipping insertion in model container [2024-11-08 23:05:03,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:05:03,365 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[1224,1237] [2024-11-08 23:05:03,437 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[2827,2840] [2024-11-08 23:05:03,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:05:03,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:05:03,523 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[1224,1237] [2024-11-08 23:05:03,564 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_bf7f182c-4e73-4223-b86a-52ff090a388e/sv-benchmarks/c/combinations/gcd_4+newton_2_4.i[2827,2840] [2024-11-08 23:05:03,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:05:03,625 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:05:03,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03 WrapperNode [2024-11-08 23:05:03,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:05:03,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:05:03,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:05:03,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:05:03,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,686 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-11-08 23:05:03,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:05:03,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:05:03,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:05:03,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:05:03,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:05:03,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:05:03,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:05:03,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:05:03,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:05:03" (1/1) ... [2024-11-08 23:05:03,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:05:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:05:03,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:05:03,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:05:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:05:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:05:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:05:03,854 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:05:03,854 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:05:03,854 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:05:03,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:05:03,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:05:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 23:05:03,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 23:05:03,986 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:05:03,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:05:27,619 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 23:05:27,619 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:05:27,702 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:05:27,702 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:05:27,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:05:27 BoogieIcfgContainer [2024-11-08 23:05:27,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:05:27,703 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:05:27,703 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:05:27,715 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:05:27,716 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:05:27" (1/1) ... [2024-11-08 23:05:27,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:05:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-08 23:05:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-08 23:05:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:05:27,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:27,803 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:27,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:27,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:05:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:28,004 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:05:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:28,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:05:28,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:05:28,163 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 23:05:28,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:05:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-08 23:05:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-08 23:05:28,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 23:05:28,325 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:28,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:28,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:05:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:28,523 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:05:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:28,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:05:28,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:05:28,681 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 23:05:28,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 23:05:29,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-08 23:05:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-08 23:05:29,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:05:29,290 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:29,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:29,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:29,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:29,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 23:05:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:29,364 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:05:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:29,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:05:29,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:05:29,518 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 23:05:29,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-08 23:05:29,521 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:05:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-08 23:05:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-08 23:05:29,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:05:29,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:29,733 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:29,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:29,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 23:05:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:29,896 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:05:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:29,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 23:05:29,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:05:30,086 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 23:05:30,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-08 23:05:30,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:30,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2024-11-08 23:05:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-08 23:05:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:05:30,820 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:30,821 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:30,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:30,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:30,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 23:05:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:31,002 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:05:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:05:31,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 23:05:31,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:05:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:05:31,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-08 23:05:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:05:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 47 transitions. [2024-11-08 23:05:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-11-08 23:05:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:05:32,623 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:05:32,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:05:32,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:05:32,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:05:32,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f182c-4e73-4223-b86a-52ff090a388e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process