./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+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_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/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_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/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_580f9002-efb3-4c22-8401-929d7437dc17/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 a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:27:50,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:27:50,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:27:50,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:27:50,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:27:51,011 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:27:51,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:27:51,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:27:51,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:27:51,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:27:51,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:27:51,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:27:51,015 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:27:51,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:27:51,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:27:51,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:27:51,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:27:51,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:27:51,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:27:51,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:27:51,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:27:51,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:27:51,024 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:27:51,025 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:27:51,025 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:27:51,025 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:27:51,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:27:51,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:27:51,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:27:51,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:27:51,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:27:51,027 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:27:51,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:27:51,032 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_580f9002-efb3-4c22-8401-929d7437dc17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 [2024-11-09 00:27:51,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:27:51,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:27:51,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:27:51,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:27:51,348 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:27:51,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i Unable to find full path for "g++" [2024-11-09 00:27:53,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:27:53,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:27:53,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i [2024-11-09 00:27:53,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/58bd651cd/bd237f6d7bcf409eaaf9586071a6ab1a/FLAG005d4b7e5 [2024-11-09 00:27:53,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/58bd651cd/bd237f6d7bcf409eaaf9586071a6ab1a [2024-11-09 00:27:53,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:27:53,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:27:53,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:27:53,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:27:53,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:27:53,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:27:53" (1/1) ... [2024-11-09 00:27:53,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7a0de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:53, skipping insertion in model container [2024-11-09 00:27:53,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:27:53" (1/1) ... [2024-11-09 00:27:53,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:27:54,036 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-09 00:27:54,066 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-09 00:27:54,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:27:54,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:27:54,090 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-09 00:27:54,102 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-09 00:27:54,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:27:54,122 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:27:54,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54 WrapperNode [2024-11-09 00:27:54,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:27:54,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:27:54,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:27:54,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:27:54,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,162 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-11-09 00:27:54,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:27:54,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:27:54,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:27:54,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:27:54,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:27:54,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:27:54,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:27:54,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:27:54,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:27:54,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:27:54,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:27:54,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:27:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:27:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:27:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:27:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:27:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:27:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:27:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:27:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:27:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:27:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:27:54,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:27:54,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:27:54,539 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:27:54,539 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:27:54,603 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:27:54,603 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:27:54,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:27:54 BoogieIcfgContainer [2024-11-09 00:27:54,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:27:54,605 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:27:54,605 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:27:54,616 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:27:54,617 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:27:54" (1/1) ... [2024-11-09 00:27:54,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:27:54,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:54,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-09 00:27:54,687 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-09 00:27:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:27:54,692 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:54,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:27:55,024 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 00:27:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-09 00:27:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-09 00:27:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:27:55,126 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:27:55,259 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 00:27:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-09 00:27:55,394 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 00:27:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:27:55,395 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:55,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:27:55,485 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 00:27:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-09 00:27:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-09 00:27:55,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:27:55,531 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:27:55,802 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 00:27:56,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 46 transitions. [2024-11-09 00:27:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-09 00:27:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:27:56,148 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:56,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:27:56,481 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 00:27:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:27:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 42 states and 57 transitions. [2024-11-09 00:27:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2024-11-09 00:27:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:27:57,002 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:27:57,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:27:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:27:57,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:27:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:27:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:27:57,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:27:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:27:57,126 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-09 00:27:57,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:27:57 ImpRootNode [2024-11-09 00:27:57,176 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:27:57,178 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:27:57,178 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:27:57,178 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:27:57,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:27:54" (3/4) ... [2024-11-09 00:27:57,182 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:27:57,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:27:57,184 INFO L158 Benchmark]: Toolchain (without parser) took 3388.09ms. Allocated memory was 159.4MB in the beginning and 218.1MB in the end (delta: 58.7MB). Free memory was 116.4MB in the beginning and 78.2MB in the end (delta: 38.3MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,184 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:27:57,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.27ms. Allocated memory is still 159.4MB. Free memory was 116.4MB in the beginning and 102.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.77ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,189 INFO L158 Benchmark]: Boogie Preprocessor took 28.21ms. Allocated memory is still 159.4MB. Free memory was 101.1MB in the beginning and 99.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,189 INFO L158 Benchmark]: RCFGBuilder took 412.20ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 81.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,190 INFO L158 Benchmark]: CodeCheck took 2571.37ms. Allocated memory was 159.4MB in the beginning and 218.1MB in the end (delta: 58.7MB). Free memory was 81.6MB in the beginning and 78.2MB in the end (delta: 3.4MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2024-11-09 00:27:57,190 INFO L158 Benchmark]: Witness Printer took 5.46ms. Allocated memory is still 218.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:27:57,197 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: 2.5s, 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, 1.0s 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 > -0.6f && IN < 0.6f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [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 0.29ms. Allocated memory is still 159.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.27ms. Allocated memory is still 159.4MB. Free memory was 116.4MB in the beginning and 102.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.77ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.21ms. Allocated memory is still 159.4MB. Free memory was 101.1MB in the beginning and 99.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.20ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 81.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2571.37ms. Allocated memory was 159.4MB in the beginning and 218.1MB in the end (delta: 58.7MB). Free memory was 81.6MB in the beginning and 78.2MB in the end (delta: 3.4MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Witness Printer took 5.46ms. Allocated memory is still 218.1MB. Free memory is still 78.2MB. 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 00:27:57,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/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_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/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_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/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_580f9002-efb3-4c22-8401-929d7437dc17/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 a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:27:59,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:27:59,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-09 00:27:59,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:27:59,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:27:59,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:27:59,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:27:59,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:27:59,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:27:59,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:27:59,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:27:59,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:27:59,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:27:59,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:27:59,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:27:59,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:27:59,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:27:59,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:27:59,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:27:59,778 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:27:59,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:27:59,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:27:59,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:27:59,780 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:27:59,780 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:27:59,780 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:27:59,781 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:27:59,781 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:27:59,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:27:59,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:27:59,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:27:59,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:27:59,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:27:59,783 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:27:59,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:27:59,784 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:27:59,784 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_580f9002-efb3-4c22-8401-929d7437dc17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 [2024-11-09 00:28:00,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:28:00,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:28:00,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:28:00,198 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:28:00,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:28:00,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i Unable to find full path for "g++" [2024-11-09 00:28:02,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:28:02,550 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:28:02,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i [2024-11-09 00:28:02,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/c2313b7ff/5d61b7a2091449bda8a08170f0f9eb16/FLAG682dfac43 [2024-11-09 00:28:02,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/data/c2313b7ff/5d61b7a2091449bda8a08170f0f9eb16 [2024-11-09 00:28:02,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:28:02,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:28:02,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:28:02,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:28:02,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:28:02,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:02,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f951fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02, skipping insertion in model container [2024-11-09 00:28:02,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:02,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:28:02,884 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-09 00:28:02,917 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-09 00:28:02,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:28:02,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:28:02,952 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-09 00:28:02,965 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_580f9002-efb3-4c22-8401-929d7437dc17/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-09 00:28:02,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:28:02,987 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:28:02,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02 WrapperNode [2024-11-09 00:28:02,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:28:02,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:28:02,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:28:02,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:28:02,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,052 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-11-09 00:28:03,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:28:03,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:28:03,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:28:03,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:28:03,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:28:03,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:28:03,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:28:03,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:28:03,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:28:02" (1/1) ... [2024-11-09 00:28:03,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:28:03,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:28:03,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:28:03,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:28:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:28:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:28:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:28:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:28:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:28:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:28:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:28:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:28:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:28:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:28:03,275 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:28:03,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:28:25,931 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-09 00:28:25,931 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:28:26,015 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:28:26,016 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:28:26,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:28:26 BoogieIcfgContainer [2024-11-09 00:28:26,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:28:26,022 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:28:26,023 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:28:26,059 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:28:26,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:28:26" (1/1) ... [2024-11-09 00:28:26,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:28:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:26,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-09 00:28:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-09 00:28:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:28:26,171 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:26,172 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:26,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:26,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:26,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:28:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:26,429 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:28:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:26,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:28:26,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:28:26,623 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 00:28:26,627 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-09 00:28:26,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:28:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-09 00:28:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-09 00:28:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:28:26,846 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:26,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:26,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:26,851 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:26,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-09 00:28:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:27,103 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:28:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:27,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:28:27,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:28:27,303 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 00:28:27,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-09 00:28:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-09 00:28:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 00:28:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:28:28,083 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:28,084 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:28,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:28,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:28,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 00:28:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:28,160 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:28:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:28,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:28:28,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:28:28,362 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 00:28:28,364 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2024-11-09 00:28:28,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 00:28:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-09 00:28:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-09 00:28:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:28:28,571 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:28,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:28,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:28,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:28,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 00:28:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:28,725 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:28:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:28,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 00:28:28,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:28:28,929 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 00:28:28,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-09 00:28:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2024-11-09 00:28:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-09 00:28:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:28:29,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:29,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:29,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 00:28:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:29,972 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:28:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:28:30,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 00:28:30,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:28:30,425 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 00:28:30,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-09 00:28:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:28:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 47 transitions. [2024-11-09 00:28:31,693 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-11-09 00:28:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:28:31,695 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:28:31,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:28:31,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:28:31,698 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:28:31,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f9002-efb3-4c22-8401-929d7437dc17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process