./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-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_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:52:51,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:52:51,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:52:51,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:52:51,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:52:51,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:52:51,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:52:51,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:52:51,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:52:51,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:52:51,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:52:51,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:52:51,830 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:52:51,830 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:52:51,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:52:51,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:52:51,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:52:51,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:52:51,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:52:51,833 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:52:51,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:52:51,833 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_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb [2024-11-25 02:52:52,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:52:52,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:52:52,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:52:52,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:52:52,180 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:52:52,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2024-11-25 02:52:55,252 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/data/aa01ee7c7/b7cd4948a01241868029bd049238e7a1/FLAG76af1c728 [2024-11-25 02:52:55,578 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:52:55,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2024-11-25 02:52:55,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/data/aa01ee7c7/b7cd4948a01241868029bd049238e7a1/FLAG76af1c728 [2024-11-25 02:52:55,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/data/aa01ee7c7/b7cd4948a01241868029bd049238e7a1 [2024-11-25 02:52:55,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:52:55,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:52:55,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:52:55,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:52:55,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:52:55,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304f3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55, skipping insertion in model container [2024-11-25 02:52:55,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:52:55,850 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_1ccdf421-9ccf-4a7b-b7d1-be045da83459/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2024-11-25 02:52:55,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:52:55,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:52:55,910 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_1ccdf421-9ccf-4a7b-b7d1-be045da83459/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2024-11-25 02:52:55,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:52:55,942 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:52:55,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55 WrapperNode [2024-11-25 02:52:55,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:52:55,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:52:55,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:52:55,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:52:55,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,984 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-25 02:52:55,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:52:55,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:52:55,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:52:55,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:52:55,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,999 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:55,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:56,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:56,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:56,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:56,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:52:56,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:52:56,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:52:56,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:52:56,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:55" (1/1) ... [2024-11-25 02:52:56,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:52:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:52:56,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:52:56,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:52:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:52:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:52:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:52:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:52:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:52:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:52:56,161 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:52:56,165 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:52:56,364 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-25 02:52:56,364 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:52:56,498 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:52:56,499 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:52:56,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:56 BoogieIcfgContainer [2024-11-25 02:52:56,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:52:56,500 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:52:56,500 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:52:56,513 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:52:56,513 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:56" (1/1) ... [2024-11-25 02:52:56,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:52:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-11-25 02:52:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-11-25 02:52:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 02:52:56,589 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:56,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:52:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-11-25 02:52:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-25 02:52:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:52:56,799 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:52:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:56,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-25 02:52:56,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:52:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:52:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-11-25 02:52:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-11-25 02:52:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:52:57,323 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:52:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:57,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-25 02:52:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-25 02:52:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:52:57,868 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:57,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:52:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:57,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-25 02:52:57,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:52:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:52:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 51 transitions. [2024-11-25 02:52:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 51 transitions. [2024-11-25 02:52:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:52:59,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:59,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:53:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:53:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 24 states and 34 transitions. [2024-11-25 02:53:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-25 02:53:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:53:01,125 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:53:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:53:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:53:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:01,182 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:53:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:01,216 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-25 02:53:01,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:53:01 ImpRootNode [2024-11-25 02:53:01,247 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:53:01,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:53:01,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:53:01,249 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:53:01,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:56" (3/4) ... [2024-11-25 02:53:01,250 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 02:53:01,309 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 13. [2024-11-25 02:53:01,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:53:01,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:53:01,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:53:01,372 INFO L158 Benchmark]: Toolchain (without parser) took 5750.14ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 75.4MB in the end (delta: 28.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-11-25 02:53:01,372 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:01,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.24ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 92.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:53:01,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.59ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:01,375 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.7MB in the end (delta: 695.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:01,376 INFO L158 Benchmark]: RCFGBuilder took 492.24ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 72.0MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:53:01,376 INFO L158 Benchmark]: CodeCheck took 4746.94ms. Allocated memory is still 142.6MB. Free memory was 72.0MB in the beginning and 80.6MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:01,376 INFO L158 Benchmark]: Witness Printer took 123.52ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 75.4MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:53:01,379 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: 4.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 103 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 401 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 1 QuantifiedInterpolants, 154 SizeOfPredicates, 5 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/7 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int x, y; [L22] long long a, b, p, q; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] CALL assume_abort_if_not(y >= 1) [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(y >= 1) [L28] a = x [L29] b = y [L30] p = 1 [L31] q = 0 VAL [a=-2, b=2, counter=0, p=1, q=0, x=-2, y=2] [L33] EXPR counter++ VAL [a=-2, b=2, counter=1, p=1, q=0, x=-2, y=2] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [a=-2, b=2, counter=1, p=1, q=0, x=-2, y=2] [L36] COND FALSE !(!(a != 0 && b != 0)) [L39] COND TRUE a % 2 == 0 && b % 2 == 0 [L40] a = a / 2 [L41] b = b / 2 [L42] p = 4 * p VAL [a=-1, b=1, counter=1, p=4, q=0, x=-2, y=2] [L33] EXPR counter++ VAL [a=-1, b=1, counter=2, p=4, q=0, x=-2, y=2] [L33] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(q == (long long) x * y) VAL [\old(cond)=0, counter=2] [L12] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L14] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.24ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 92.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.59ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.7MB in the end (delta: 695.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 492.24ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 72.0MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 4746.94ms. Allocated memory is still 142.6MB. Free memory was 72.0MB in the beginning and 80.6MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 123.52ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 75.4MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 02:53:01,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccdf421-9ccf-4a7b-b7d1-be045da83459/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE