./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.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_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3 --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 2e2cde485588a76ffd9007a3156c09bf9b7ea2f13bf08ca050cf52c24b8b1e9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:09:32,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:09:32,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-24 18:09:32,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:09:32,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:09:32,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:09:32,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:09:32,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:09:32,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:09:32,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:09:32,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:09:32,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:09:32,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:09:32,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:09:32,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:09:32,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:09:32,467 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:09:32,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:09:32,467 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:09:32,468 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:09:32,468 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:09:32,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:09:32,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:09:32,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:09:32,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:09:32,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:09:32,469 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:09:32,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:09:32,469 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_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 2e2cde485588a76ffd9007a3156c09bf9b7ea2f13bf08ca050cf52c24b8b1e9f [2024-11-24 18:09:32,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:09:32,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:09:32,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:09:32,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:09:32,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:09:32,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2024-11-24 18:09:36,042 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/data/e2bc7b56e/57b0256986314354b177b34d353621d4/FLAG51767bb85 [2024-11-24 18:09:36,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:09:36,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2024-11-24 18:09:36,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/data/e2bc7b56e/57b0256986314354b177b34d353621d4/FLAG51767bb85 [2024-11-24 18:09:36,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/data/e2bc7b56e/57b0256986314354b177b34d353621d4 [2024-11-24 18:09:36,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:09:36,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:09:36,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:09:36,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:09:36,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:09:36,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ec499e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36, skipping insertion in model container [2024-11-24 18:09:36,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:09:36,607 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_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2024-11-24 18:09:36,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:09:36,637 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:09:36,648 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_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2024-11-24 18:09:36,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:09:36,671 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:09:36,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36 WrapperNode [2024-11-24 18:09:36,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:09:36,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:09:36,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:09:36,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:09:36,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,707 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-11-24 18:09:36,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:09:36,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:09:36,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:09:36,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:09:36,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,717 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:09:36,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:09:36,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:09:36,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:09:36,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:36" (1/1) ... [2024-11-24 18:09:36,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:09:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:09:36,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:09:36,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:09:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:09:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 18:09:36,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 18:09:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:09:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:09:36,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:09:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 18:09:36,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 18:09:36,838 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:09:36,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:09:36,984 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-24 18:09:36,984 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:09:37,025 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:09:37,025 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:09:37,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:09:37 BoogieIcfgContainer [2024-11-24 18:09:37,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:09:37,027 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:09:37,027 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:09:37,039 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:09:37,039 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:09:37" (1/1) ... [2024-11-24 18:09:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:09:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:09:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-24 18:09:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-24 18:09:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 18:09:37,114 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:09:37,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:09:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:09:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:09:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:09:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-11-24 18:09:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-24 18:09:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 18:09:37,386 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:09:37,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:09:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 18:09:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:09:37,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 18:09:37,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 18:09:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:09:39,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:09:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:09:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-24 18:09:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-24 18:09:39,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 18:09:39,590 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:09:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:09:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:09:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:09:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:09:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-11-24 18:09:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-24 18:09:40,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 18:09:40,269 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:09:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:09:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:09:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:09:43,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:09:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:09:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-11-24 18:09:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-24 18:09:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 18:09:44,618 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:09:44,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:09:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 18:09:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:09:44,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 18:09:44,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 18:10:05,891 WARN L286 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 18:10:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 18:11:06,063 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 29 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 18:11:10,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:11:20,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:11:51,852 WARN L286 SmtUtils]: Spent 12.46s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 18:12:05,894 WARN L286 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 18:12:11,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:12:13,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 18:12:13,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:12:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 53 transitions. [2024-11-24 18:12:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2024-11-24 18:12:13,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 18:12:13,067 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:12:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:12:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:12:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:12:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:12:42,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 61 transitions. [2024-11-24 18:12:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2024-11-24 18:12:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 18:12:42,521 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:12:42,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:12:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:12:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:13:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:13:03,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 63 transitions. [2024-11-24 18:13:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2024-11-24 18:13:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 18:13:03,164 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:13:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:13:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 18:13:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:13:03,225 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:13:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:13:03,284 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-24 18:13:03,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:13:03 ImpRootNode [2024-11-24 18:13:03,327 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:13:03,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:13:03,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:13:03,328 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:13:03,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:09:37" (3/4) ... [2024-11-24 18:13:03,330 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 18:13:03,378 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 22. [2024-11-24 18:13:03,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:13:03,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:13:03,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:13:03,447 INFO L158 Benchmark]: Toolchain (without parser) took 207040.76ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 83.9MB in the end (delta: 35.4MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-24 18:13:03,447 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:13:03,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.92ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.9MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:13:03,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.14ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:13:03,448 INFO L158 Benchmark]: Boogie Preprocessor took 16.88ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.1MB in the end (delta: 771.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:13:03,449 INFO L158 Benchmark]: RCFGBuilder took 301.17ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:13:03,449 INFO L158 Benchmark]: CodeCheck took 206300.54ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-24 18:13:03,449 INFO L158 Benchmark]: Witness Printer took 117.49ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 83.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:13:03,455 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 206.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 326 SdHoareTripleChecker+Valid, 44.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 44.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 218 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 617 IncrementalHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 218 mSolverCounterUnsat, 219 mSDtfsCounter, 617 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1070 GetRequests, 971 SyntacticMatches, 5 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2699 ImplicationChecksByTransitivity, 190.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 2 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/29 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() [L26] CALL assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [A=3, R=0, counter=0] [L28] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L28] RET assume_abort_if_not(A % 2 == 1) VAL [A=3, R=0, counter=0] [L30] u = ((long long) 2 * R) + 1 [L31] v = 1 [L32] r = ((long long) R * R) - A VAL [A=3, counter=0, r=-3, u=1, v=1] [L34] EXPR counter++ VAL [A=3, counter=1, r=-3, u=1, v=1] [L34] COND TRUE counter++<2 [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=-3, u=1, v=1] [L36] COND FALSE !(!(r != 0)) [L38] COND FALSE !(r > 0) [L42] r = r + u [L43] u = u + 2 VAL [A=3, counter=1, r=-2, u=3, v=1] [L34] EXPR counter++ VAL [A=3, counter=2, r=-2, u=3, v=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=2] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=2, r=-2, u=3, v=1] [L36] COND FALSE !(!(r != 0)) [L38] COND FALSE !(r > 0) [L42] r = r + u [L43] u = u + 2 VAL [A=3, counter=2, r=1, u=5, v=1] [L34] EXPR counter++ VAL [A=3, counter=3, r=1, u=5, v=1] [L34] COND FALSE !(counter++<2) [L48] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=3] [L12] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L14] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.92ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.9MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.14ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.88ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.1MB in the end (delta: 771.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.17ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 206300.54ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 117.49ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 83.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-24 18:13:03,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bb5129-24c4-4d26-a161-0f8c5fc41b4d/bin/ukojak-verify-ENZ3QT5qd3/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