./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array20_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/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_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array20_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:32:30,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:32:30,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:32:30,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:32:30,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:32:30,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:32:30,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:32:30,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:32:30,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:32:30,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:32:30,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:32:30,773 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:32:30,774 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:32:30,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:32:30,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:32:30,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:32:30,775 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:32:30,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:32:30,775 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_2215cec8-daef-44a7-b6bf-0190b014484d/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a [2024-12-05 23:32:30,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:32:31,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:32:31,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:32:31,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:32:31,011 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:32:31,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-15/array20_alloca.i [2024-12-05 23:32:33,654 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/data/86f5681f9/8114fdd545f24bd9a31920946b136522/FLAG571c9e21a [2024-12-05 23:32:33,869 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:32:33,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/sv-benchmarks/c/termination-15/array20_alloca.i [2024-12-05 23:32:33,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/data/86f5681f9/8114fdd545f24bd9a31920946b136522/FLAG571c9e21a [2024-12-05 23:32:34,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/data/86f5681f9/8114fdd545f24bd9a31920946b136522 [2024-12-05 23:32:34,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:32:34,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:32:34,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:32:34,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:32:34,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:32:34,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a155f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34, skipping insertion in model container [2024-12-05 23:32:34,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:32:34,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:32:34,476 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:32:34,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:32:34,539 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:32:34,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34 WrapperNode [2024-12-05 23:32:34,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:32:34,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:32:34,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:32:34,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:32:34,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,570 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-12-05 23:32:34,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:32:34,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:32:34,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:32:34,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:32:34,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,582 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:32:34,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:32:34,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:32:34,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:32:34,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:32:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:32:34,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:32:34,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 23:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 23:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 23:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:32:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:32:34,699 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:32:34,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:32:34,801 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-05 23:32:34,801 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:32:34,846 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:32:34,846 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 23:32:34,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:32:34 BoogieIcfgContainer [2024-12-05 23:32:34,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:32:34,847 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:32:34,847 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:32:34,856 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:32:34,856 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:32:34" (1/1) ... [2024-12-05 23:32:34,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:32:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-05 23:32:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-05 23:32:34,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:32:34,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2024-12-05 23:32:35,153 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-05 23:32:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 23:32:35,153 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2024-12-05 23:32:35,282 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2024-12-05 23:32:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 23:32:35,283 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-12-05 23:32:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-12-05 23:32:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:32:35,354 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-12-05 23:32:35,573 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-12-05 23:32:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:32:35,574 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2024-12-05 23:32:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2024-12-05 23:32:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:32:35,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2024-12-05 23:32:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2024-12-05 23:32:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:32:35,996 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2024-12-05 23:32:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-12-05 23:32:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:32:36,163 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:36,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:36,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 23:32:36,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:36,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 23:32:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:36,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-12-05 23:32:36,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-05 23:32:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2024-12-05 23:32:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2024-12-05 23:32:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:32:37,325 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:37,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 47 transitions. [2024-12-05 23:32:37,797 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 47 transitions. [2024-12-05 23:32:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:32:37,797 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:37,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:37,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-05 23:32:37,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:37,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 38 [2024-12-05 23:32:37,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2024-12-05 23:32:37,926 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:37,927 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2024-12-05 23:32:38,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-05 23:32:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 30 states and 58 transitions. [2024-12-05 23:32:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 58 transitions. [2024-12-05 23:32:39,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:32:39,032 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:39,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:39,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 23:32:39,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:39,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-05 23:32:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 34 states and 70 transitions. [2024-12-05 23:32:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 70 transitions. [2024-12-05 23:32:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:32:40,509 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:40,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 23:32:40,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:40,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-05 23:32:40,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 23:32:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:40,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 59 [2024-12-05 23:32:40,740 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:40,741 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2024-12-05 23:32:40,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-12-05 23:32:40,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2024-12-05 23:32:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:40,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-12-05 23:32:40,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-05 23:32:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:41,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 36 states and 71 transitions. [2024-12-05 23:32:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 71 transitions. [2024-12-05 23:32:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:32:41,061 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 39 states and 81 transitions. [2024-12-05 23:32:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 81 transitions. [2024-12-05 23:32:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 23:32:41,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:41,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:41,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 23:32:41,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:41,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 23:32:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:41,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-12-05 23:32:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:43,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:43,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 40 states and 85 transitions. [2024-12-05 23:32:43,082 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 85 transitions. [2024-12-05 23:32:43,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 23:32:43,083 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:43,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-05 23:32:43,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:43,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 38 [2024-12-05 23:32:43,176 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:43,176 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2024-12-05 23:32:43,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 23:32:43,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2024-12-05 23:32:43,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:43,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 59 [2024-12-05 23:32:43,400 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:43,401 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2024-12-05 23:32:43,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:43,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-12-05 23:32:43,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-05 23:32:43,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:43,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2024-12-05 23:32:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:43,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:43,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2024-12-05 23:32:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:44,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 40 states and 84 transitions. [2024-12-05 23:32:44,881 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 84 transitions. [2024-12-05 23:32:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:32:44,881 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:44,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-05 23:32:44,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:45,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 23:32:45,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-05 23:32:45,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 23:32:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:45,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-12-05 23:32:45,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:45,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 26 [2024-12-05 23:32:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 45 states and 91 transitions. [2024-12-05 23:32:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 91 transitions. [2024-12-05 23:32:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:32:50,595 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:50,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:50,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-05 23:32:50,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:50,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 38 [2024-12-05 23:32:50,692 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:50,692 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2024-12-05 23:32:50,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 23:32:50,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2024-12-05 23:32:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:50,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 59 [2024-12-05 23:32:50,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2024-12-05 23:32:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:50,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-12-05 23:32:50,802 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:50,803 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2024-12-05 23:32:50,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:50,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2024-12-05 23:32:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:51,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 80 [2024-12-05 23:32:51,202 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:51,203 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2024-12-05 23:32:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2024-12-05 23:32:51,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2024-12-05 23:32:51,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2024-12-05 23:32:51,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 23:32:51,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 23:32:51,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2024-12-05 23:32:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:52,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 93 transitions. [2024-12-05 23:32:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 93 transitions. [2024-12-05 23:32:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:32:52,785 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:52,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:32:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 50 states and 104 transitions. [2024-12-05 23:32:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 104 transitions. [2024-12-05 23:32:53,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 23:32:53,762 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:53,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:32:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:32:53,810 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:32:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:32:53,838 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 19 iterations. [2024-12-05 23:32:53,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:32:53 ImpRootNode [2024-12-05 23:32:53,861 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:32:53,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:32:53,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:32:53,861 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:32:53,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:32:34" (3/4) ... [2024-12-05 23:32:53,863 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 23:32:53,891 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-12-05 23:32:53,929 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:32:53,930 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2215cec8-daef-44a7-b6bf-0190b014484d/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:32:53,930 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:32:53,930 INFO L158 Benchmark]: Toolchain (without parser) took 19703.10ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 93.1MB in the beginning and 120.9MB in the end (delta: -27.8MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-12-05 23:32:53,931 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:32:53,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.27ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 75.1MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:32:53,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.38ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:32:53,931 INFO L158 Benchmark]: Boogie Preprocessor took 17.17ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 72.6MB in the end (delta: 849.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:32:53,932 INFO L158 Benchmark]: RCFGBuilder took 258.23ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 59.2MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:32:53,932 INFO L158 Benchmark]: CodeCheck took 19013.50ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 59.2MB in the beginning and 125.5MB in the end (delta: -66.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-12-05 23:32:53,932 INFO L158 Benchmark]: Witness Printer took 68.54ms. Allocated memory is still 192.9MB. Free memory was 125.5MB in the beginning and 120.9MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:32:53,934 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 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.0s, OverallIterations: 19, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 558 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 371 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 937 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3456 IncrementalHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 937 mSolverCounterUnsat, 70 mSDtfsCounter, 3456 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1990 GetRequests, 1648 SyntacticMatches, 86 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29988 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 186 ConstructedInterpolants, 11 QuantifiedInterpolants, 1526 SizeOfPredicates, 29 NumberOfNonLiveVariables, 627 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 5/155 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: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=3] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=3] [L370] COND TRUE i