./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm --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 ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:35:48,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:35:48,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:35:48,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:35:48,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:35:48,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:35:48,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:35:48,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:35:48,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:35:48,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:35:48,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:35:48,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:35:48,373 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:35:48,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:35:48,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:35:48,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:35:48,376 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:35:48,376 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:35:48,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:35:48,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:35:48,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:35:48,378 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_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm 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 -> ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e [2024-11-13 20:35:48,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:35:48,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:35:48,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:35:48,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:35:48,777 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:35:48,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c Unable to find full path for "g++" [2024-11-13 20:35:51,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:35:51,466 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:35:51,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c [2024-11-13 20:35:51,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/badb42d74/b9c677a986414b6e9006cf86ab53f3db/FLAG714df8e9a [2024-11-13 20:35:51,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/badb42d74/b9c677a986414b6e9006cf86ab53f3db [2024-11-13 20:35:51,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:35:51,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:35:51,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:35:51,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:35:51,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:35:51,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:51,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64405b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51, skipping insertion in model container [2024-11-13 20:35:51,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:51,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:35:51,910 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_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-13 20:35:51,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:35:51,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:35:51,956 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_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-13 20:35:51,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:35:51,977 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:35:51,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51 WrapperNode [2024-11-13 20:35:51,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:35:51,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:35:51,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:35:51,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:35:51,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:51,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,014 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-13 20:35:52,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:35:52,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:35:52,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:35:52,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:35:52,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:35:52,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:35:52,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:35:52,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:35:52,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:35:51" (1/1) ... [2024-11-13 20:35:52,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:35:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:35:52,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:35:52,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:35:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:35:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 20:35:52,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 20:35:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:35:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:35:52,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:35:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 20:35:52,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 20:35:52,229 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:35:52,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:35:52,453 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 20:35:52,453 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:35:52,547 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:35:52,547 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 20:35:52,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:35:52 BoogieIcfgContainer [2024-11-13 20:35:52,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:35:52,549 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:35:52,549 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:35:52,562 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:35:52,563 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:35:52" (1/1) ... [2024-11-13 20:35:52,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:35:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:35:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-13 20:35:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-13 20:35:52,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 20:35:52,664 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:35:52,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:35:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:35:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:35:53,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 20:35:53,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:35:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 20:35:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:35:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2024-11-13 20:35:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2024-11-13 20:35:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 20:35:53,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:35:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:35:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:35:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 20:35:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:35:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-13 20:35:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-13 20:35:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 20:35:56,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:35:56,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:35:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:36:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:02,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 20:36:02,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:36:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 20:36:33,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 20:36:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:36:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 46 transitions. [2024-11-13 20:36:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-11-13 20:36:35,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 20:36:35,130 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:36:35,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:36:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:36:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:36:45,345 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 20:36:45,349 INFO L158 Benchmark]: Toolchain (without parser) took 53674.49ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 102.9MB in the end (delta: 25.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-13 20:36:45,352 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:36:45,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.78ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 117.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:36:45,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.96ms. Allocated memory is still 167.8MB. Free memory was 117.6MB in the beginning and 116.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:36:45,353 INFO L158 Benchmark]: Boogie Preprocessor took 24.03ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 115.6MB in the end (delta: 602.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:36:45,354 INFO L158 Benchmark]: RCFGBuilder took 508.64ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 101.5MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:36:45,354 INFO L158 Benchmark]: CodeCheck took 52799.27ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 102.9MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:36:45,358 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.78ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 117.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.96ms. Allocated memory is still 167.8MB. Free memory was 117.6MB in the beginning and 116.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.03ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 115.6MB in the end (delta: 602.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.64ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 101.5MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 52799.27ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 102.9MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 20:36:45,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm --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 ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:36:48,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:36:48,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-13 20:36:48,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:36:48,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:36:48,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:36:48,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:36:48,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:36:48,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:36:48,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:36:48,285 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:36:48,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:36:48,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:36:48,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:36:48,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:36:48,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:36:48,286 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:36:48,286 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:36:48,286 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:36:48,286 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_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm 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 -> ee2daa1dfbe0d64b8ede4504c07bcca5b6f9048af3b92abbef97ab933225d42e [2024-11-13 20:36:48,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:36:48,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:36:48,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:36:48,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:36:48,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:36:48,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c Unable to find full path for "g++" [2024-11-13 20:36:50,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:36:50,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:36:50,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c [2024-11-13 20:36:50,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/7123fd830/29d35801ae2047bbb17c88d6077a12cd/FLAG05cd4b09c [2024-11-13 20:36:51,226 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/data/7123fd830/29d35801ae2047bbb17c88d6077a12cd [2024-11-13 20:36:51,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:36:51,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:36:51,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:36:51,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:36:51,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:36:51,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9abce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51, skipping insertion in model container [2024-11-13 20:36:51,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:36:51,442 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_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-13 20:36:51,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:36:51,477 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:36:51,494 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_a35990bd-6481-4abe-ba76-bc406df04d1a/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound10.c[537,550] [2024-11-13 20:36:51,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:36:51,525 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:36:51,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51 WrapperNode [2024-11-13 20:36:51,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:36:51,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:36:51,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:36:51,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:36:51,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,563 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-13 20:36:51,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:36:51,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:36:51,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:36:51,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:36:51,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:36:51,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:36:51,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:36:51,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:36:51,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:36:51" (1/1) ... [2024-11-13 20:36:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:36:51,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:36:51,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:36:51,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:36:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:36:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:36:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 20:36:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 20:36:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:36:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:36:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 20:36:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 20:36:51,789 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:36:51,791 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:36:52,037 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 20:36:52,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:36:52,147 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:36:52,148 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 20:36:52,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:36:52 BoogieIcfgContainer [2024-11-13 20:36:52,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:36:52,153 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:36:52,153 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:36:52,166 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:36:52,166 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:36:52" (1/1) ... [2024-11-13 20:36:52,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:36:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:36:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-13 20:36:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-13 20:36:52,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 20:36:52,252 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:36:52,253 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:36:52,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:36:52,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:36:52,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:36:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:52,449 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:36:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:52,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 20:36:52,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:36:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 20:36:53,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:36:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:36:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 37 transitions. [2024-11-13 20:36:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-13 20:36:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 20:36:54,021 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:36:54,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:36:54,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:36:54,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:36:54,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 20:36:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:54,108 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:36:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:54,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 20:36:54,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:36:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 20:36:56,097 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 20:36:56,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 20:36:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:36:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 46 transitions. [2024-11-13 20:36:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-11-13 20:36:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 20:36:58,643 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:36:58,643 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:36:58,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:36:58,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:36:58,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 20:36:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:58,860 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:36:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:36:59,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 20:36:59,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:37:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 20:37:00,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 20:37:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:37:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 34 states and 52 transitions. [2024-11-13 20:37:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2024-11-13 20:37:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 20:37:07,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:37:07,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:37:07,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:37:07,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:37:07,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 20:37:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:37:08,107 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:37:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:37:08,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 20:37:08,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:37:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 20:37:13,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 20:37:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:37:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 37 states and 58 transitions. [2024-11-13 20:37:27,390 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2024-11-13 20:37:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 20:37:27,391 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:37:27,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:37:27,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:37:27,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:37:27,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 20:37:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:37:27,938 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:37:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:37:28,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 20:37:28,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:37:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 20:37:47,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 20:38:20,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:38:21,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:21,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 64 transitions. [2024-11-13 20:38:21,205 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2024-11-13 20:38:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 20:38:21,206 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:21,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:38:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:38:21,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:38:21,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 20:38:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:22,040 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:38:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:22,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 20:38:22,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:39:31,909 WARN L286 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 260 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:39:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-13 20:39:52,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-13 20:40:12,221 WARN L286 SmtUtils]: Spent 14.30s on a formula simplification. DAG size of input: 163 DAG size of output: 163 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:40:24,514 WARN L286 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:40:59,448 WARN L286 SmtUtils]: Spent 9.33s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:41:22,657 WARN L286 SmtUtils]: Spent 13.83s on a formula simplification that was a NOOP. DAG size: 303 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:41:47,964 WARN L286 SmtUtils]: Spent 11.86s on a formula simplification that was a NOOP. DAG size: 304 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:41:50,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:41:54,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:41:58,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:41:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:41:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 43 states and 70 transitions. [2024-11-13 20:41:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2024-11-13 20:41:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 20:41:58,372 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:41:58,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:41:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:41:58,376 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:41:58,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-13 20:41:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:41:59,314 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:42:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:42:00,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 20:42:00,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:44:33,475 WARN L286 SmtUtils]: Spent 14.83s on a formula simplification that was a NOOP. DAG size: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:45:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 61 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 20:45:05,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-13 20:46:16,773 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 309 DAG size of output: 293 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:46:56,514 WARN L286 SmtUtils]: Spent 31.34s on a formula simplification that was a NOOP. DAG size: 294 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:47:01,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:47:03,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:48:10,997 WARN L286 SmtUtils]: Spent 16.69s on a formula simplification that was a NOOP. DAG size: 291 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:49:00,981 WARN L286 SmtUtils]: Spent 35.12s on a formula simplification that was a NOOP. DAG size: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:50:00,286 WARN L286 SmtUtils]: Spent 37.86s on a formula simplification that was a NOOP. DAG size: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:50:03,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:50:07,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:50:11,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:50:16,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 20:50:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:50:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 46 states and 76 transitions. [2024-11-13 20:50:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2024-11-13 20:50:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 20:50:17,113 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:50:17,113 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:50:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:50:17,120 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:50:17,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35990bd-6481-4abe-ba76-bc406df04d1a/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-13 20:50:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:50:18,342 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:50:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:50:19,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 20:50:19,681 INFO L278 TraceCheckSpWp]: Computing forward predicates...