./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_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_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/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_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/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_f2fcf501-28b6-40db-b4e1-9b3224117718/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 e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:17:41,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:17:42,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-24 18:17:42,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:17:42,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:17:42,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:17:42,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:17:42,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:17:42,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:17:42,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:17:42,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:17:42,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:17:42,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:17:42,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:17:42,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:17:42,124 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:17:42,124 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:17:42,124 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:17:42,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:17:42,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:17:42,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:17:42,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:17:42,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:17:42,125 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:17:42,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:17:42,125 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_f2fcf501-28b6-40db-b4e1-9b3224117718/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 -> e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b [2024-11-24 18:17:42,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:17:42,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:17:42,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:17:42,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:17:42,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:17:42,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2024-11-24 18:17:46,357 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/data/25b384e2b/1f69d03ccea04c5b91b8a7aa34d0ab36/FLAG2d235046d [2024-11-24 18:17:46,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:17:46,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2024-11-24 18:17:46,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/data/25b384e2b/1f69d03ccea04c5b91b8a7aa34d0ab36/FLAG2d235046d [2024-11-24 18:17:46,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/data/25b384e2b/1f69d03ccea04c5b91b8a7aa34d0ab36 [2024-11-24 18:17:46,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:17:46,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:17:46,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:17:46,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:17:46,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:17:46,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:17:46" (1/1) ... [2024-11-24 18:17:46,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c97cae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:46, skipping insertion in model container [2024-11-24 18:17:46,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:17:46" (1/1) ... [2024-11-24 18:17:46,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:17:47,049 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_f2fcf501-28b6-40db-b4e1-9b3224117718/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2024-11-24 18:17:47,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:17:47,092 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:17:47,110 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_f2fcf501-28b6-40db-b4e1-9b3224117718/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2024-11-24 18:17:47,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:17:47,144 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:17:47,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47 WrapperNode [2024-11-24 18:17:47,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:17:47,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:17:47,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:17:47,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:17:47,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,187 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2024-11-24 18:17:47,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:17:47,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:17:47,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:17:47,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:17:47,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,205 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:17:47,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:17:47,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:17:47,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:17:47,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:17:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:17:47,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:17:47,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:17:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:17:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 18:17:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 18:17:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:17:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:17:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:17:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 18:17:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 18:17:47,387 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:17:47,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:17:47,557 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-24 18:17:47,557 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:17:47,613 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:17:47,615 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:17:47,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:47 BoogieIcfgContainer [2024-11-24 18:17:47,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:17:47,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:17:47,617 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:17:47,629 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:17:47,629 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:47" (1/1) ... [2024-11-24 18:17:47,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:17:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-24 18:17:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-24 18:17:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 18:17:47,710 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:47,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:47,873 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 18:17:47,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-11-24 18:17:47,923 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-24 18:17:47,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 18:17:47,924 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:47,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 18:17:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:48,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 18:17:48,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 18:17:48,295 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 18:17:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-24 18:17:48,453 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-24 18:17:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 18:17:48,456 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:48,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:48,626 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 18:17:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-11-24 18:17:49,068 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-24 18:17:49,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 18:17:49,070 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:49,695 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 18:17:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-11-24 18:17:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-24 18:17:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 18:17:50,438 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:17:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 44 transitions. [2024-11-24 18:17:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2024-11-24 18:17:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 18:17:52,103 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 18:17:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:17:52,159 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:17:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:17:52,217 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-24 18:17:52,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:17:52 ImpRootNode [2024-11-24 18:17:52,267 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:17:52,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:17:52,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:17:52,268 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:17:52,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:47" (3/4) ... [2024-11-24 18:17:52,270 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 18:17:52,339 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 16. [2024-11-24 18:17:52,423 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:17:52,423 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:17:52,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:17:52,425 INFO L158 Benchmark]: Toolchain (without parser) took 5635.31ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 53.4MB in the end (delta: 65.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-11-24 18:17:52,425 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:52,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.44ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:17:52,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.88ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:52,426 INFO L158 Benchmark]: Boogie Preprocessor took 24.16ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.1MB in the end (delta: 787.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:52,427 INFO L158 Benchmark]: RCFGBuilder took 401.12ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.1MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:17:52,427 INFO L158 Benchmark]: CodeCheck took 4650.06ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 58.1MB in the end (delta: 36.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-24 18:17:52,428 INFO L158 Benchmark]: Witness Printer took 156.21ms. Allocated memory is still 142.6MB. Free memory was 58.1MB in the beginning and 53.4MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:52,435 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: 4.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 167 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 143 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 632 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 14/17 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int x1, x2; [L25] int y1, y2, y3; [L26] x1 = __VERIFIER_nondet_int() [L27] x2 = __VERIFIER_nondet_int() [L29] CALL assume_abort_if_not(x1 >= 0) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) [L29] RET assume_abort_if_not(x1 >= 0) VAL [counter=0, x1=2, x2=-1] [L30] CALL assume_abort_if_not(x2 != 0) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) [L30] RET assume_abort_if_not(x2 != 0) VAL [counter=0, x1=2, x2=-1] [L32] y1 = 0 [L33] y2 = 0 [L34] y3 = x1 VAL [counter=0, x1=2, x2=-1, y1=0, y2=0, y3=2] [L36] EXPR counter++ VAL [counter=1, x1=2, x2=-1, y1=0, y2=0, y3=2] [L36] COND TRUE counter++<1 [L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [\old(cond)=1, counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [counter=1, x1=2, x2=-1, y1=0, y2=0, y3=2] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=1, x1=2, x2=-1, y1=0, y2=1, y3=1] [L36] EXPR counter++ VAL [counter=2, x1=2, x2=-1, y1=0, y2=1, y3=1] [L36] COND FALSE !(counter++<1) [L50] CALL __VERIFIER_assert(y1*x2 + y2 == x1) VAL [\old(cond)=0, counter=2] [L16] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L18] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.44ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.88ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.16ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.1MB in the end (delta: 787.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 401.12ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.1MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4650.06ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 58.1MB in the end (delta: 36.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * Witness Printer took 156.21ms. Allocated memory is still 142.6MB. Free memory was 58.1MB in the beginning and 53.4MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-24 18:17:52,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fcf501-28b6-40db-b4e1-9b3224117718/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE