./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:24:34,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:24:34,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:24:34,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:24:34,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:24:34,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:24:34,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:24:34,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:24:34,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:24:34,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:24:34,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:24:34,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:24:34,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:24:34,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:24:34,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:24:34,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:24:34,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:24:34,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:24:34,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:24:34,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:24:34,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:24:34,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:24:34,955 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:24:34,956 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:24:34,957 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:24:34,958 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:24:34,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:24:34,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:34,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:24:34,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:24:34,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:24:34,961 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:24:34,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:24:34,961 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 [2024-11-08 22:24:35,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:24:35,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:24:35,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:24:35,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:24:35,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:24:35,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i Unable to find full path for "g++" [2024-11-08 22:24:37,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:24:37,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:24:37,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2024-11-08 22:24:37,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/ed651cf60/b68e7b66855249b997bd71da45bc6d6d/FLAG9a61a9ad7 [2024-11-08 22:24:37,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/ed651cf60/b68e7b66855249b997bd71da45bc6d6d [2024-11-08 22:24:37,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:24:37,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:24:37,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:37,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:24:37,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:24:37,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:37,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc6fb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37, skipping insertion in model container [2024-11-08 22:24:37,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:37,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:24:37,831 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2024-11-08 22:24:37,869 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2024-11-08 22:24:37,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:37,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:24:37,911 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2024-11-08 22:24:37,931 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2024-11-08 22:24:37,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:37,952 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:24:37,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37 WrapperNode [2024-11-08 22:24:37,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:37,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:37,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:24:37,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:24:37,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:37,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:37,994 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-08 22:24:37,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:37,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:24:37,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:24:37,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:24:38,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:24:38,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:24:38,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:24:38,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:24:38,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:37" (1/1) ... [2024-11-08 22:24:38,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:24:38,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:24:38,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:24:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:24:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 22:24:38,110 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 22:24:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 22:24:38,110 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 22:24:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:24:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:24:38,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:24:38,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:24:38,195 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:24:38,465 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 22:24:38,465 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:24:38,551 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:24:38,552 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:24:38,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:38 BoogieIcfgContainer [2024-11-08 22:24:38,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:24:38,558 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:24:38,558 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:24:38,571 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:24:38,571 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:38" (1/1) ... [2024-11-08 22:24:38,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:24:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-08 22:24:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-08 22:24:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:24:38,647 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:38,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-08 22:24:39,074 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-08 22:24:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:24:39,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:39,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-08 22:24:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-08 22:24:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:24:39,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:39,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:39,548 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 22:24:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-11-08 22:24:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-08 22:24:39,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:24:39,942 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:39,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:24:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:44,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 22:24:44,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:24:46,788 WARN L873 $PredicateComparison]: unable to prove that (and (<= 1 |c_ULTIMATE.start_main1_~y~0#1|) (or (and (<= 0 (+ |c_ULTIMATE.start_gcd_test_~a#1| 128)) (<= (+ |c_ULTIMATE.start_gcd_test_~a#1| 1) 0) (exists ((v_y_5 Int)) (let ((.cse0 (* 256 v_y_5)) (.cse1 (* |c_ULTIMATE.start_gcd_test_~a#1| 255))) (and (= (mod (+ 65280 .cse0 .cse1) |c_ULTIMATE.start_main1_~y~0#1|) 0) (<= 0 (+ 65408 .cse0 .cse1)) (<= (+ 65281 .cse0 .cse1) 0))))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| 127) (<= 0 |c_ULTIMATE.start_gcd_test_~a#1|) (= (mod |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_main1_~y~0#1|) 0))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (= |c_ULTIMATE.start_main1_~y~0#1| |c_ULTIMATE.start_gcd_test_~b#1|)) is different from true [2024-11-08 22:24:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-08 22:24:57,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:25:00,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2024-11-08 22:25:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2024-11-08 22:25:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:25:00,424 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:25:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:25:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:10,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 22:25:10,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:25:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:25:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-08 22:25:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-08 22:25:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 22:25:17,679 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:25:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:17,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:17,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:17,748 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 22:25:17,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:25:17 ImpRootNode [2024-11-08 22:25:17,772 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:25:17,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:25:17,773 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:25:17,773 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:25:17,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:38" (3/4) ... [2024-11-08 22:25:17,777 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:25:17,778 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:25:17,779 INFO L158 Benchmark]: Toolchain (without parser) took 40204.46ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 124.6MB in the beginning and 73.0MB in the end (delta: 51.5MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,780 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:17,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.24ms. Allocated memory is still 159.4MB. Free memory was 124.6MB in the beginning and 110.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.19ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,783 INFO L158 Benchmark]: Boogie Preprocessor took 27.75ms. Allocated memory is still 159.4MB. Free memory was 108.6MB in the beginning and 107.8MB in the end (delta: 835.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,784 INFO L158 Benchmark]: RCFGBuilder took 525.36ms. Allocated memory is still 159.4MB. Free memory was 107.2MB in the beginning and 89.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,785 INFO L158 Benchmark]: CodeCheck took 39214.86ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 88.9MB in the beginning and 73.0MB in the end (delta: 15.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2024-11-08 22:25:17,785 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 201.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:17,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 39.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 12.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 30 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 309 SyntacticMatches, 25 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 14.3s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 95. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) VAL [\old(x)=2] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) VAL [IN=2] [L93] CALL, EXPR fp(IN) VAL [\old(x)=2] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) VAL [IN=2] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=3] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L95] RET, EXPR f(x) VAL [IN=2, x=3] [L95] CALL, EXPR fp(x) VAL [\old(x)=3] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L95] RET, EXPR fp(x) VAL [IN=2, x=3] [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=2] [L102] reach_error() VAL [IN=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.24ms. Allocated memory is still 159.4MB. Free memory was 124.6MB in the beginning and 110.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.19ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.75ms. Allocated memory is still 159.4MB. Free memory was 108.6MB in the beginning and 107.8MB in the end (delta: 835.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.36ms. Allocated memory is still 159.4MB. Free memory was 107.2MB in the beginning and 89.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 39214.86ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 88.9MB in the beginning and 73.0MB in the end (delta: 15.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 201.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:25:17,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:25:20,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:25:20,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 22:25:20,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:25:20,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:25:20,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:25:20,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:25:20,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:25:20,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:25:20,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:25:20,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:25:20,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:25:20,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:25:20,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:25:20,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:25:20,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:25:20,287 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:25:20,287 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:25:20,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:25:20,288 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:25:20,288 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:25:20,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:25:20,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:25:20,293 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:25:20,293 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:25:20,293 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:25:20,293 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:20,294 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:25:20,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:25:20,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:25:20,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:25:20,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:25:20,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:25:20,295 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:25:20,295 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:20,295 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:25:20,296 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 [2024-11-08 22:25:20,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:25:20,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:25:20,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:25:20,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:25:20,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:25:20,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i Unable to find full path for "g++" [2024-11-08 22:25:22,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:25:23,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:25:23,184 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2024-11-08 22:25:23,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/5e366dfcf/56a6ef582cc645eb8dae9b63bf961604/FLAGc02032a37 [2024-11-08 22:25:23,560 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/data/5e366dfcf/56a6ef582cc645eb8dae9b63bf961604 [2024-11-08 22:25:23,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:25:23,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:25:23,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:25:23,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:25:23,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:25:23,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:23,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a59366a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23, skipping insertion in model container [2024-11-08 22:25:23,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:23,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:25:23,807 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2024-11-08 22:25:23,853 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2024-11-08 22:25:23,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:25:23,880 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:25:23,896 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2024-11-08 22:25:23,921 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_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2024-11-08 22:25:23,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:25:23,947 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:25:23,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23 WrapperNode [2024-11-08 22:25:23,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:25:23,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:25:23,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:25:23,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:25:23,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:23,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,005 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-11-08 22:25:24,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:25:24,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:25:24,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:25:24,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:25:24,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:25:24,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:25:24,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:25:24,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:25:24,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:23" (1/1) ... [2024-11-08 22:25:24,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:25:24,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:25:24,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:25:24,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:25:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:25:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:25:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 22:25:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 22:25:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 22:25:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 22:25:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:25:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:25:24,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:25:24,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:25:46,687 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 22:25:46,688 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:25:46,755 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:25:46,755 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:25:46,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:46 BoogieIcfgContainer [2024-11-08 22:25:46,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:25:46,757 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:25:46,757 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:25:46,767 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:25:46,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:46" (1/1) ... [2024-11-08 22:25:46,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:25:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-08 22:25:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-08 22:25:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:25:46,847 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:46,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:46,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:25:46,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:25:46,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:25:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:47,009 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:25:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:47,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 22:25:47,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:25:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:25:47,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:25:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-08 22:25:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-08 22:25:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:25:47,586 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:47,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:47,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:25:47,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:25:47,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:25:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:47,681 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:25:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:47,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 22:25:47,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:25:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:25:47,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 22:25:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-08 22:25:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-08 22:25:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:25:48,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:48,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:48,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:25:48,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:25:48,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 22:25:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:48,368 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:25:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:48,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 22:25:48,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:25:49,004 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 22:25:49,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-08 22:25:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-11-08 22:25:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-08 22:25:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:25:51,436 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:51,436 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:51,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:25:51,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:25:51,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 22:25:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:52,428 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:25:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:25:55,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 22:25:55,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:26:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:26:02,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-08 22:26:09,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 22:26:13,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 22:26:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2024-11-08 22:26:14,409 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2024-11-08 22:26:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:26:14,410 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:14,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:14,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:26:14,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:26:14,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 22:26:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:26:15,286 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:26:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:26:19,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 22:26:19,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:26:26,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:26:26,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-08 22:26:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-08 22:26:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-08 22:26:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 22:26:27,455 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:27,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:27,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:26:27,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:26:27,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e04fe2-b54d-42a9-a2bb-8bb985bd0273/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process