./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.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_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:14:44,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:14:44,468 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:14:44,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:14:44,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:14:44,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:14:44,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:14:44,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:14:44,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:14:44,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:14:44,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:14:44,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:14:44,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:14:44,516 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:14:44,516 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:14:44,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:44,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:14:44,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:14:44,517 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_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 [2024-11-25 03:14:44,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:14:44,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:14:44,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:14:44,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:14:44,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:14:44,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2024-11-25 03:14:47,781 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/data/39024f3a1/964e143d8ca04277ae1702d1954c7d80/FLAG79a94584b [2024-11-25 03:14:48,061 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:14:48,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2024-11-25 03:14:48,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/data/39024f3a1/964e143d8ca04277ae1702d1954c7d80/FLAG79a94584b [2024-11-25 03:14:48,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/data/39024f3a1/964e143d8ca04277ae1702d1954c7d80 [2024-11-25 03:14:48,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:14:48,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:14:48,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:48,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:14:48,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:14:48,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f0420a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48, skipping insertion in model container [2024-11-25 03:14:48,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:14:48,310 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_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c[524,537] [2024-11-25 03:14:48,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:48,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:14:48,368 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_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c[524,537] [2024-11-25 03:14:48,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:48,399 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:14:48,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48 WrapperNode [2024-11-25 03:14:48,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:48,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:48,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:14:48,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:14:48,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,441 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-11-25 03:14:48,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:48,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:14:48,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:14:48,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:14:48,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,458 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:14:48,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:14:48,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:14:48,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:14:48,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:48,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:14:48,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:14:48,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007fcba-d5a6-43fc-a0dd-e0a643f2bd45/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:14:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:14:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 03:14:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 03:14:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:14:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:14:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:14:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 03:14:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 03:14:48,648 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:14:48,650 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:14:48,799 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 03:14:48,799 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:14:48,855 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:14:48,855 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 03:14:48,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:48 BoogieIcfgContainer [2024-11-25 03:14:48,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:14:48,857 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:14:48,857 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:14:48,868 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:14:48,868 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:48" (1/1) ... [2024-11-25 03:14:48,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:14:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-25 03:14:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-25 03:14:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:14:48,942 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:14:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-11-25 03:14:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-25 03:14:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:14:49,226 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:49,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:14:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:49,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 03:14:49,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:14:50,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-25 03:14:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-25 03:14:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:14:50,378 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:50,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:14:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-11-25 03:14:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-25 03:14:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 03:14:51,097 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:51,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:14:56,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:14:59,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:14:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:59,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-11-25 03:14:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-25 03:14:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 03:14:59,898 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:15:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:15:18,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:15:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 46 transitions. [2024-11-25 03:15:18,041 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-11-25 03:15:18,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 03:15:18,042 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:15:18,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:15:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:15:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:15:18,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:15:18,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:15:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 03:16:19,833 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:16:49,879 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 37 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:17:01,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:17:39,673 WARN L286 SmtUtils]: Spent 22.61s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:18:01,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:18:04,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:18:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:18:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 66 transitions. [2024-11-25 03:18:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2024-11-25 03:18:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 03:18:04,207 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:18:04,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:18:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:18:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:18:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:18:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 68 transitions. [2024-11-25 03:18:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2024-11-25 03:18:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:18:06,292 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:18:06,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:18:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:18:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 03:18:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:18:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 79 transitions. [2024-11-25 03:18:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2024-11-25 03:18:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:18:37,687 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:18:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:18:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:18:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 03:18:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:18:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 47 states and 87 transitions. [2024-11-25 03:18:43,448 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 87 transitions. [2024-11-25 03:18:43,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:18:43,450 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:18:43,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:18:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:18:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:18:43,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-25 03:18:43,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:20:41,151 WARN L286 SmtUtils]: Spent 11.67s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:20:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-25 03:21:06,328 WARN L286 SmtUtils]: Spent 14.41s on a formula simplification. DAG size of input: 47 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:21:32,535 WARN L286 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:22:39,268 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:23:14,194 WARN L286 SmtUtils]: Spent 18.52s on a formula simplification. DAG size of input: 49 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:23:36,065 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 50 DAG size of output: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:23:55,244 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:23:59,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:24:45,824 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 62 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:25:04,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:27:16,917 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 77 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:28:03,650 WARN L286 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:28:24,254 WARN L286 SmtUtils]: Spent 12.35s on a formula simplification. DAG size of input: 78 DAG size of output: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:28:27,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:28:43,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:28:45,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:28:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:28:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 53 states and 104 transitions. [2024-11-25 03:28:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 104 transitions. [2024-11-25 03:28:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:28:46,092 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:28:46,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:28:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:28:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:28:46,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-25 03:28:46,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:29:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-25 03:29:42,222 WARN L286 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 46 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)