./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_3_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi --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 87554a4f39ea71934805d096a19f81b20cf82924707369622052a80438a85d9f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:10:16,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:10:16,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:10:16,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:10:16,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:10:17,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:10:17,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:10:17,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:10:17,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:10:17,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:10:17,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:10:17,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:10:17,027 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:10:17,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:10:17,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:10:17,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:10:17,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:10:17,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:10:17,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:10:17,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:10:17,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:10:17,032 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:10:17,033 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:10:17,033 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:10:17,034 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:10:17,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:10:17,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:17,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:10:17,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:10:17,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:10:17,037 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:10:17,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:10:17,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:10:17,039 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87554a4f39ea71934805d096a19f81b20cf82924707369622052a80438a85d9f [2023-11-24 23:10:17,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:10:17,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:10:17,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:10:17,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:10:17,345 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:10:17,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/combinations/gcd_3+newton_3_2.i [2023-11-24 23:10:20,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:10:20,926 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:10:20,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/sv-benchmarks/c/combinations/gcd_3+newton_3_2.i [2023-11-24 23:10:20,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/data/a46018824/014b72392f82401a99cd5cc8ffa9b0da/FLAG23edf6f49 [2023-11-24 23:10:20,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/data/a46018824/014b72392f82401a99cd5cc8ffa9b0da [2023-11-24 23:10:20,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:10:20,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:10:20,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:20,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:10:20,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:10:20,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:20" (1/1) ... [2023-11-24 23:10:20,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ede40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:20, skipping insertion in model container [2023-11-24 23:10:20,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:20" (1/1) ... [2023-11-24 23:10:21,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:10:21,232 WARN L240 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/sv-benchmarks/c/combinations/gcd_3+newton_3_2.i[1226,1239] [2023-11-24 23:10:21,285 WARN L240 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/sv-benchmarks/c/combinations/gcd_3+newton_3_2.i[2862,2875] [2023-11-24 23:10:21,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:21,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:10:21,329 WARN L240 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/sv-benchmarks/c/combinations/gcd_3+newton_3_2.i[1226,1239] [2023-11-24 23:10:21,356 WARN L240 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_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/sv-benchmarks/c/combinations/gcd_3+newton_3_2.i[2862,2875] [2023-11-24 23:10:21,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:21,381 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:10:21,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21 WrapperNode [2023-11-24 23:10:21,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:21,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:21,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:10:21,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:10:21,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,472 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 93 [2023-11-24 23:10:21,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:21,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:10:21,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:10:21,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:10:21,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:10:21,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:10:21,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:10:21,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:10:21,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:21" (1/1) ... [2023-11-24 23:10:21,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:10:21,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:10:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:10:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:10:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2023-11-24 23:10:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2023-11-24 23:10:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-24 23:10:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-24 23:10:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:10:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:10:21,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:10:21,737 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:10:21,740 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:10:22,007 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:10:22,097 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:10:22,097 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:10:22,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:22 BoogieIcfgContainer [2023-11-24 23:10:22,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:10:22,106 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:10:22,107 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:10:22,119 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:10:22,121 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:10:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-24 23:10:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-24 23:10:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:10:22,208 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2023-11-24 23:10:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2023-11-24 23:10:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:10:22,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:22,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:23,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 23:10:23,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:30,351 WARN L293 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-24 23:10:41,869 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse8 (mod (* 255 |c_ULTIMATE.start_main1_~x~0#1|) 256))) (let ((.cse0 (<= 0 |c_ULTIMATE.start_main1_~x~0#1|)) (.cse1 (<= (+ |c_ULTIMATE.start_main1_~x~0#1| 1) 0)) (.cse6 (<= 128 .cse8)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse4 (+ .cse8 (- 256))) (.cse5 (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (.cse7 (<= .cse8 127))) (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= (mod (mod |c_ULTIMATE.start_main1_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|))) .cse0) (and .cse1 (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (let ((.cse2 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|))) (and (not (= .cse2 0)) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_22|)) (= (mod (+ .cse2 |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) .cse3) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|) 0))) .cse5)) .cse6) (and .cse7 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse8 |v_ULTIMATE.start_gcd_test_~b#1_22|) 256)) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_22|)) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0)))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= (mod (mod |c_ULTIMATE.start_main1_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_22|)) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0))) .cse0) (and .cse1 (or (and .cse6 (or (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (let ((.cse9 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|))) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (not (= .cse9 0)) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (= (mod (+ .cse9 (* 255 |v_ULTIMATE.start_gcd_test_~b#1_22|)) 256) .cse3) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|) 0) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|))) .cse5))) (and .cse7 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse8 |v_ULTIMATE.start_gcd_test_~b#1_22|) 256)) (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|))))))))) is different from true [2023-11-24 23:10:53,708 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 (mod (* 255 |c_ULTIMATE.start_main1_~x~0#1|) 256))) (let ((.cse3 (<= .cse4 127)) (.cse2 (+ .cse4 (- 256))) (.cse1 (<= 128 .cse4)) (.cse0 (<= (+ |c_ULTIMATE.start_main1_~x~0#1| 1) 0)) (.cse5 (<= 0 |c_ULTIMATE.start_main1_~x~0#1|))) (or (and .cse0 (or (and .cse1 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (= (mod .cse2 |v_ULTIMATE.start_gcd_test_~b#1_22|) 0) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|)))) (and .cse3 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (= (mod (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) 0) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|)))))) (and (or (and .cse3 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_22|)) (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0) (= (mod (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) 0)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0) (= (mod .cse2 |v_ULTIMATE.start_gcd_test_~b#1_22|) 0))) .cse1)) .cse0) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= (mod (mod |c_ULTIMATE.start_main1_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) 0) (<= |v_ULTIMATE.start_gcd_test_~b#1_22| 127) (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_22| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_22|))) .cse5) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_22| Int)) (and (= (mod (mod |c_ULTIMATE.start_main1_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) 256) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_22|)) (<= |c_ULTIMATE.start_main1_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_22|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_22| 1) 0))) .cse5)))) is different from true [2023-11-24 23:10:54,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-24 23:11:30,906 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:950) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeChecker.negatePredicate(CodeChecker.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.splitNode(UltimateChecker.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.kojak.UltimateChecker.codeCheck(UltimateChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:472) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 27 more [2023-11-24 23:11:30,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 139 [2023-11-24 23:11:30,911 INFO L158 Benchmark]: Toolchain (without parser) took 69949.21ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 81.7MB in the beginning and 39.7MB in the end (delta: 42.0MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-11-24 23:11:30,912 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 99.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:30,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.37ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 69.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:11:30,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.62ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 69.7MB in the beginning and 137.5MB in the end (delta: -67.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-11-24 23:11:30,915 INFO L158 Benchmark]: Boogie Preprocessor took 63.91ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 136.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:30,916 INFO L158 Benchmark]: RCFGBuilder took 565.31ms. Allocated memory is still 167.8MB. Free memory was 136.0MB in the beginning and 123.6MB in the end (delta: 12.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-24 23:11:30,917 INFO L158 Benchmark]: CodeCheck took 68804.66ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 39.7MB in the end (delta: 83.9MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. [2023-11-24 23:11:30,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd17cead-30c6-4ea5-8b56-a1faf6f144c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 99.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.37ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 69.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.62ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 69.7MB in the beginning and 137.5MB in the end (delta: -67.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.91ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 136.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 565.31ms. Allocated memory is still 167.8MB. Free memory was 136.0MB in the beginning and 123.6MB in the end (delta: 12.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * CodeCheck took 68804.66ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 39.7MB in the end (delta: 83.9MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result.