./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/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 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:36:37,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:36:37,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 00:36:37,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:36:37,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:36:37,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:36:37,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:36:37,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:36:37,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:36:37,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:36:37,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:36:37,927 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:36:37,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:36:37,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:36:37,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:36:37,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:36:37,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:36:37,928 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:36:37,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:36:37,928 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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/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 -> 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 [2024-12-06 00:36:38,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:36:38,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:36:38,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:36:38,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:36:38,164 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:36:38,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2024-12-06 00:36:40,804 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/data/ca300138b/1e64c8e6a2ad4182b7cc79f70677e69e/FLAGf826d2255 [2024-12-06 00:36:41,008 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:36:41,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2024-12-06 00:36:41,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/data/ca300138b/1e64c8e6a2ad4182b7cc79f70677e69e/FLAGf826d2255 [2024-12-06 00:36:41,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/data/ca300138b/1e64c8e6a2ad4182b7cc79f70677e69e [2024-12-06 00:36:41,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:36:41,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:36:41,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:36:41,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:36:41,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:36:41,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60398af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41, skipping insertion in model container [2024-12-06 00:36:41,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:36:41,153 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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2024-12-06 00:36:41,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:36:41,175 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:36:41,183 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_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2024-12-06 00:36:41,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:36:41,201 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:36:41,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41 WrapperNode [2024-12-06 00:36:41,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:36:41,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:36:41,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:36:41,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:36:41,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,225 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-12-06 00:36:41,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:36:41,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:36:41,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:36:41,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:36:41,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:36:41,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:36:41,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:36:41,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:36:41,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:36:41,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:36:41,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:36:41,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:36:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:36:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:36:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:36:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:36:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 00:36:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 00:36:41,341 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:36:41,342 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:36:41,455 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 00:36:41,456 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:36:41,491 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:36:41,492 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:36:41,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:36:41 BoogieIcfgContainer [2024-12-06 00:36:41,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:36:41,493 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:36:41,493 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:36:41,501 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:36:41,502 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:36:41" (1/1) ... [2024-12-06 00:36:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:36:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-06 00:36:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-06 00:36:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 00:36:41,554 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-12-06 00:36:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-12-06 00:36:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:36:41,675 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:36:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:41,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 00:36:41,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:36:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:41,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-12-06 00:36:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-12-06 00:36:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:36:41,921 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:41,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:42,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-12-06 00:36:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-12-06 00:36:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:36:42,207 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:42,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:42,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-12-06 00:36:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-12-06 00:36:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 00:36:42,834 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:42,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 22 states and 26 transitions. [2024-12-06 00:36:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-12-06 00:36:43,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 00:36:43,617 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:43,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:36:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:43,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-06 00:36:43,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:36:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:36:47,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 00:36:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 21 transitions. [2024-12-06 00:36:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-12-06 00:36:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 00:36:47,334 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:36:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:47,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-06 00:36:47,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:36:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 00:36:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 21 states and 25 transitions. [2024-12-06 00:36:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-06 00:36:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 00:36:47,588 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:47,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:36:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:36:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:36:47,628 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:36:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:36:47,656 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-12-06 00:36:47,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:36:47 ImpRootNode [2024-12-06 00:36:47,680 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:36:47,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:36:47,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:36:47,681 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:36:47,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:36:41" (3/4) ... [2024-12-06 00:36:47,682 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 00:36:47,720 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 15. [2024-12-06 00:36:47,770 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:36:47,770 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:36:47,770 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:36:47,771 INFO L158 Benchmark]: Toolchain (without parser) took 6740.63ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 92.6MB in the beginning and 148.6MB in the end (delta: -56.0MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,771 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:36:47,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.53ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.85ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:36:47,772 INFO L158 Benchmark]: Boogie Preprocessor took 17.15ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.3MB in the end (delta: 786.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,772 INFO L158 Benchmark]: RCFGBuilder took 248.78ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 67.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,773 INFO L158 Benchmark]: CodeCheck took 6187.01ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 67.2MB in the beginning and 153.4MB in the end (delta: -86.1MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,773 INFO L158 Benchmark]: Witness Printer took 89.72ms. Allocated memory is still 234.9MB. Free memory was 153.4MB in the beginning and 148.6MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:36:47,774 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 8, 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, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 196 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 196 mSolverCounterUnsat, 160 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 723 GetRequests, 639 SyntacticMatches, 12 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 3 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 15/19 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: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L22] CALL assume_abort_if_not(k <= 256) [L7] COND FALSE !(!cond) [L22] RET assume_abort_if_not(k <= 256) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [c=0, counter=0, k=2, x=0, y=0] [L28] EXPR counter++ VAL [c=0, counter=1, k=2, x=0, y=0] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L29] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [c=0, counter=1, k=2, x=0, y=0] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x VAL [c=1, counter=1, k=2, x=1, y=1] [L28] EXPR counter++ VAL [c=1, counter=2, k=2, x=1, y=1] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L39] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [c=1, counter=2, k=2, x=1, y=1] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L12] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.53ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.85ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.15ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.3MB in the end (delta: 786.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 248.78ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 67.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 6187.01ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 67.2MB in the beginning and 153.4MB in the end (delta: -86.1MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 89.72ms. Allocated memory is still 234.9MB. Free memory was 153.4MB in the beginning and 148.6MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 00:36:47,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f26c0dd-2ba2-452e-bd49-53d7cb6f98e3/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