./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.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_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/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_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/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_35a925e6-7919-4d67-9668-d5a703e604a9/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 de445246a07a3c09c24ae1b242201e03863b04cf8c0f903588b21168932b2662 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:54:50,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:54:50,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:54:50,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:54:50,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:54:50,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:54:50,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:54:50,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:54:50,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:54:50,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:54:50,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:54:50,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:54:50,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:54:50,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:54:50,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:54:50,176 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:54:50,176 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:54:50,176 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:54:50,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:54:50,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:54:50,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:54:50,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:54:50,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:54:50,179 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:54:50,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:54:50,179 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_35a925e6-7919-4d67-9668-d5a703e604a9/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 -> de445246a07a3c09c24ae1b242201e03863b04cf8c0f903588b21168932b2662 [2024-11-25 02:54:50,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:54:50,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:54:50,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:54:50,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:54:50,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:54:50,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c [2024-11-25 02:54:53,599 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/data/a6fd42e34/44af330243a2433d8ce1ab8dc13f7daa/FLAG81f30a759 [2024-11-25 02:54:53,938 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:54:53,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c [2024-11-25 02:54:53,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/data/a6fd42e34/44af330243a2433d8ce1ab8dc13f7daa/FLAG81f30a759 [2024-11-25 02:54:54,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/data/a6fd42e34/44af330243a2433d8ce1ab8dc13f7daa [2024-11-25 02:54:54,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:54:54,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:54:54,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:54:54,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:54:54,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:54:54,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfe6567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54, skipping insertion in model container [2024-11-25 02:54:54,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:54:54,424 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_35a925e6-7919-4d67-9668-d5a703e604a9/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c[525,538] [2024-11-25 02:54:54,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:54:54,455 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:54:54,463 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_35a925e6-7919-4d67-9668-d5a703e604a9/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c[525,538] [2024-11-25 02:54:54,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:54:54,481 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:54:54,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54 WrapperNode [2024-11-25 02:54:54,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:54:54,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:54:54,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:54:54,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:54:54,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,508 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-25 02:54:54,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:54:54,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:54:54,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:54:54,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:54:54,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,520 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:54:54,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:54:54,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:54:54,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:54:54,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:54:54,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:54:54,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:54:54,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a925e6-7919-4d67-9668-d5a703e604a9/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:54:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:54:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:54:54,654 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:54:54,656 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:54:54,809 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-25 02:54:54,810 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:54:54,832 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:54:54,832 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:54:54,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:54:54 BoogieIcfgContainer [2024-11-25 02:54:54,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:54:54,834 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:54:54,834 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:54:54,846 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:54:54,846 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:54:54" (1/1) ... [2024-11-25 02:54:54,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:54:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-25 02:54:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-25 02:54:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 02:54:54,919 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:54,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:54:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-25 02:54:55,085 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-25 02:54:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:54:55,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:55,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:54:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:55,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-25 02:54:55,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:54:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:54:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-11-25 02:54:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-11-25 02:54:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:54:55,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:55,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:54:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-25 02:54:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-25 02:54:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:54:55,969 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:55,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:54:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-11-25 02:54:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-11-25 02:54:56,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:54:57,000 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:54:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:57,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-25 02:54:57,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:54:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:54:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:54:58,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2024-11-25 02:54:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2024-11-25 02:54:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-25 02:54:58,211 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:54:58,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:54:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:54:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:54:58,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-25 02:54:58,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:54:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 02:55:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:55:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2024-11-25 02:55:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2024-11-25 02:55:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-25 02:55:11,089 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:55:11,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:55:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:55:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:55:11,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-25 02:55:11,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:55:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 02:55:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:55:18,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 54 transitions. [2024-11-25 02:55:18,917 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2024-11-25 02:55:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-25 02:55:18,918 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:55:18,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:55:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:55:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:55:19,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-25 02:55:19,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:55:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-25 02:55:35,735 WARN L286 SmtUtils]: Spent 15.74s 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) [2024-11-25 02:55:53,807 WARN L286 SmtUtils]: Spent 14.12s 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 02:55:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:55:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2024-11-25 02:55:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2024-11-25 02:55:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-25 02:55:57,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:55:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:55:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:55:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:55:57,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-25 02:55:57,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:55:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-25 02:56:33,881 WARN L286 SmtUtils]: Spent 32.85s 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 02:56:54,558 WARN L286 SmtUtils]: Spent 20.23s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:57:07,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:57:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:57:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2024-11-25 02:57:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2024-11-25 02:57:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-25 02:57:07,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:57:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:57:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:57:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:57:07,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-25 02:57:07,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:57:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 31 proven. 83 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-25 02:59:52,908 WARN L286 SmtUtils]: Spent 1.23m on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:00:52,625 WARN L286 SmtUtils]: Spent 20.50s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:01:30,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:01:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:01:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 67 states and 113 transitions. [2024-11-25 03:01:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 113 transitions. [2024-11-25 03:01:30,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-25 03:01:30,572 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:01:30,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:01:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:01:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:01:30,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-25 03:01:30,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:01:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 39 proven. 110 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-25 03:02:23,126 WARN L286 SmtUtils]: Spent 46.05s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:04:38,920 WARN L286 SmtUtils]: Spent 54.84s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:04:44,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:07:43,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:07:47,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 03:07:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:07:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 121 transitions. [2024-11-25 03:07:47,211 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 121 transitions. [2024-11-25 03:07:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-25 03:07:47,213 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:07:47,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:07:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:07:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:07:47,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-25 03:07:47,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:07:57,975 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:07:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 30 proven. 143 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-25 03:10:07,143 WARN L286 SmtUtils]: Spent 1.67m 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)