./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b --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 a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:15:10,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:15:11,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 04:15:11,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:15:11,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:15:11,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:15:11,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:15:11,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:15:11,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:15:11,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:15:11,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:15:11,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:15:11,036 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:15:11,037 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:15:11,037 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:15:11,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:15:11,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:15:11,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b 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 -> a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 [2024-12-06 04:15:11,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:15:11,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:15:11,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:15:11,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:15:11,284 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:15:11,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2024-12-06 04:15:13,950 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/data/29612365d/13747b27dce94dcb9a3b40d0751b38d9/FLAGf955af731 [2024-12-06 04:15:14,115 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:15:14,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2024-12-06 04:15:14,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/data/29612365d/13747b27dce94dcb9a3b40d0751b38d9/FLAGf955af731 [2024-12-06 04:15:14,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/data/29612365d/13747b27dce94dcb9a3b40d0751b38d9 [2024-12-06 04:15:14,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:15:14,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:15:14,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:15:14,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:15:14,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:15:14,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1243d9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14, skipping insertion in model container [2024-12-06 04:15:14,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:15:14,263 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_bade7c29-da48-46f5-b003-c64916c2fe95/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2024-12-06 04:15:14,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:15:14,288 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:15:14,296 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_bade7c29-da48-46f5-b003-c64916c2fe95/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2024-12-06 04:15:14,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:15:14,316 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:15:14,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14 WrapperNode [2024-12-06 04:15:14,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:15:14,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:15:14,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:15:14,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:15:14,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,342 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2024-12-06 04:15:14,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:15:14,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:15:14,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:15:14,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:15:14,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,352 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:15:14,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:15:14,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:15:14,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:15:14,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:15:14,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:15:14,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:15:14,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:15:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:15:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 04:15:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 04:15:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:15:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:15:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:15:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 04:15:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 04:15:14,462 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:15:14,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:15:14,591 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 04:15:14,591 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:15:14,616 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:15:14,616 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 04:15:14,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:15:14 BoogieIcfgContainer [2024-12-06 04:15:14,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:15:14,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:15:14,617 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:15:14,624 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:15:14,625 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:15:14" (1/1) ... [2024-12-06 04:15:14,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:15:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2024-12-06 04:15:14,681 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2024-12-06 04:15:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 04:15:14,686 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-12-06 04:15:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-12-06 04:15:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 04:15:14,818 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:14,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:15:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:14,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 04:15:14,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:15:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:16,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 04:15:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2024-12-06 04:15:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2024-12-06 04:15:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 04:15:16,372 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 54 transitions. [2024-12-06 04:15:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2024-12-06 04:15:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 04:15:16,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:16,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 55 transitions. [2024-12-06 04:15:21,768 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2024-12-06 04:15:21,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 04:15:21,769 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:21,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 58 transitions. [2024-12-06 04:15:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2024-12-06 04:15:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-06 04:15:21,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:21,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 65 transitions. [2024-12-06 04:15:28,241 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2024-12-06 04:15:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 04:15:28,242 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:28,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:15:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:15:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:15:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 45 states and 75 transitions. [2024-12-06 04:15:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2024-12-06 04:15:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 04:15:34,195 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:15:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:15:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:15:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:15:34,239 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:15:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:15:34,276 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-12-06 04:15:34,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:15:34 ImpRootNode [2024-12-06 04:15:34,300 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:15:34,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:15:34,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:15:34,301 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:15:34,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:15:14" (3/4) ... [2024-12-06 04:15:34,302 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:15:34,342 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 17. [2024-12-06 04:15:34,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:15:34,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:15:34,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:15:34,394 INFO L158 Benchmark]: Toolchain (without parser) took 20253.05ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 50.7MB in the end (delta: 41.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-12-06 04:15:34,395 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:15:34,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.99ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:15:34,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.76ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:15:34,396 INFO L158 Benchmark]: Boogie Preprocessor took 17.02ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.9MB in the end (delta: 777.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:15:34,396 INFO L158 Benchmark]: RCFGBuilder took 256.47ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 66.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:15:34,396 INFO L158 Benchmark]: CodeCheck took 19683.08ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 55.6MB in the end (delta: 10.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-12-06 04:15:34,397 INFO L158 Benchmark]: Witness Printer took 92.67ms. Allocated memory is still 117.4MB. Free memory was 55.6MB in the beginning and 50.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:15:34,399 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 390 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 358 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 476 IncrementalHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 259 mSDtfsCounter, 476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1078 GetRequests, 1022 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 22/25 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L25] CALL assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L25] RET assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [A=3, R=2, counter=0] [L27] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L27] RET assume_abort_if_not(A % 2 == 1) VAL [A=3, R=2, counter=0] [L29] u = ((long long) 2 * R) + 1 [L30] v = 1 [L31] r = ((long long) R * R) - A VAL [A=3, counter=0, r=1, u=5, v=1] [L34] EXPR counter++ VAL [A=3, counter=1, r=1, u=5, v=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=1, r=1, u=5, v=1] [L36] COND FALSE !(!(r != 0)) VAL [A=3, counter=1, r=1, u=5, v=1] [L39] EXPR counter++ VAL [A=3, counter=2, r=1, u=5, v=1] [L39] COND FALSE !(counter++<1) [L47] EXPR counter++ VAL [A=3, counter=3, r=1, u=5, v=1] [L47] COND FALSE !(counter++<1) [L34] EXPR counter++ VAL [A=3, counter=4, r=1, u=5, v=1] [L34] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=4] [L12] COND TRUE !(cond) VAL [\old(cond)=0, counter=4] [L14] reach_error() VAL [\old(cond)=0, counter=4] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.99ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.76ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.02ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.9MB in the end (delta: 777.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.47ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 66.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 19683.08ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 55.6MB in the end (delta: 10.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 92.67ms. Allocated memory is still 117.4MB. Free memory was 55.6MB in the beginning and 50.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 04:15:34,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bade7c29-da48-46f5-b003-c64916c2fe95/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE