./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.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_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 06:17:26,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 06:17:26,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 06:17:26,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 06:17:26,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 06:17:26,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 06:17:26,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 06:17:26,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 06:17:26,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 06:17:26,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 06:17:26,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 06:17:26,788 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 06:17:26,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 06:17:26,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:17:26,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 06:17:26,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 06:17:26,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 06:17:26,789 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 06:17:26,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 06:17:26,789 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_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 [2024-12-06 06:17:27,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 06:17:27,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 06:17:27,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 06:17:27,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 06:17:27,036 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 06:17:27,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2024-12-06 06:17:29,626 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/data/0d964f91c/a776145236584140b7f63b53ea978bc9/FLAG07b8eae62 [2024-12-06 06:17:29,820 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 06:17:29,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2024-12-06 06:17:29,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/data/0d964f91c/a776145236584140b7f63b53ea978bc9/FLAG07b8eae62 [2024-12-06 06:17:30,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/data/0d964f91c/a776145236584140b7f63b53ea978bc9 [2024-12-06 06:17:30,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 06:17:30,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 06:17:30,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 06:17:30,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 06:17:30,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 06:17:30,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d10509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30, skipping insertion in model container [2024-12-06 06:17:30,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 06:17:30,334 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_c9ccc484-147a-407b-b042-e44a90436195/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548] [2024-12-06 06:17:30,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:17:30,357 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 06:17:30,367 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_c9ccc484-147a-407b-b042-e44a90436195/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548] [2024-12-06 06:17:30,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:17:30,386 INFO L204 MainTranslator]: Completed translation [2024-12-06 06:17:30,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30 WrapperNode [2024-12-06 06:17:30,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 06:17:30,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 06:17:30,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 06:17:30,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 06:17:30,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,413 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-12-06 06:17:30,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 06:17:30,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 06:17:30,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 06:17:30,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 06:17:30,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 06:17:30,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 06:17:30,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 06:17:30,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 06:17:30,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:17:30,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 06:17:30,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 06:17:30,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ccc484-147a-407b-b042-e44a90436195/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 06:17:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 06:17:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 06:17:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 06:17:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 06:17:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 06:17:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 06:17:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 06:17:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 06:17:30,517 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 06:17:30,519 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 06:17:30,641 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 06:17:30,641 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 06:17:30,664 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 06:17:30,665 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-06 06:17:30,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:30 BoogieIcfgContainer [2024-12-06 06:17:30,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 06:17:30,666 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 06:17:30,666 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 06:17:30,675 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 06:17:30,675 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:30" (1/1) ... [2024-12-06 06:17:30,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 06:17:30,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2024-12-06 06:17:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2024-12-06 06:17:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 06:17:30,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:30,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:17:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:30,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 06:17:30,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:17:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 06:17:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2024-12-06 06:17:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2024-12-06 06:17:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 06:17:31,472 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 06:17:34,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2024-12-06 06:17:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2024-12-06 06:17:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 06:17:34,649 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:35,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 06:17:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2024-12-06 06:17:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2024-12-06 06:17:37,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-06 06:17:37,473 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:37,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-06 06:17:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2024-12-06 06:17:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2024-12-06 06:17:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 06:17:37,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:37,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-06 06:17:40,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2024-12-06 06:17:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-12-06 06:17:40,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 06:17:40,916 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:17:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:40,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 06:17:40,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:17:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-06 06:18:11,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:18:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:18:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 41 states and 69 transitions. [2024-12-06 06:18:12,599 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2024-12-06 06:18:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 06:18:12,600 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:18:12,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:18:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:18:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:18:12,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 06:18:12,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:18:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-06 06:20:11,958 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:20:20,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:20:23,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:20:59,847 WARN L286 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 35 DAG size of output: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:21:39,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:41,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:44,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:54,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:55,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:56,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:58,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:21:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 46 states and 81 transitions. [2024-12-06 06:21:59,768 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 81 transitions. [2024-12-06 06:21:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-06 06:21:59,769 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:21:59,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:21:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:21:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-06 06:22:05,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:22:05,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 46 states and 80 transitions. [2024-12-06 06:22:05,198 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2024-12-06 06:22:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-06 06:22:05,199 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:22:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:22:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:22:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-06 06:22:26,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:22:30,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:22:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:22:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 48 states and 84 transitions. [2024-12-06 06:22:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 84 transitions. [2024-12-06 06:22:30,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-06 06:22:30,812 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:22:30,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:22:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:22:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:22:30,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 06:22:30,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:22:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-06 06:23:25,401 WARN L286 SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 46 DAG size of output: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:24:49,607 WARN L286 SmtUtils]: Spent 23.73s on a formula simplification. DAG size of input: 48 DAG size of output: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:25:22,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:26:24,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:26:26,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:26:27,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:26:29,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:27:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:27:46,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 60 states and 120 transitions. [2024-12-06 06:27:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2024-12-06 06:27:46,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-06 06:27:46,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:27:46,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:27:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:27:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:27:46,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 06:27:46,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:27:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-06 06:28:53,278 WARN L286 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 42 DAG size of output: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:29:41,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:29:42,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 06:29:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:29:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 133 transitions. [2024-12-06 06:29:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2024-12-06 06:29:42,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-06 06:29:42,663 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:29:42,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:29:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:29:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:29:42,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-06 06:29:42,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:32:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.