./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/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_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 02:52:45,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:52:45,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:52:45,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:52:45,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:52:45,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:52:45,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:52:45,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:52:45,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:52:45,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:52:45,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:52:45,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:52:45,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:52:45,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:52:45,442 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:52:45,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:52:45,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:52:45,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:52:45,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:52:45,445 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:52:45,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:52:45,446 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:52:45,449 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:52:45,449 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:52:45,450 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:52:45,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:52:45,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:45,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:52:45,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:52:45,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:52:45,466 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:52:45,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:52:45,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:52:45,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 [2023-11-19 02:52:45,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:52:45,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:52:45,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:52:45,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:52:45,866 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:52:45,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2023-11-19 02:52:49,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:52:49,299 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:52:49,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2023-11-19 02:52:49,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/data/55fe27783/e1ecaa9a25c54af59c75945c726bff3e/FLAG2f967c48e [2023-11-19 02:52:49,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/data/55fe27783/e1ecaa9a25c54af59c75945c726bff3e [2023-11-19 02:52:49,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:52:49,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:52:49,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:49,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:52:49,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:52:49,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7923ef37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49, skipping insertion in model container [2023-11-19 02:52:49,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:52:49,609 WARN L240 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_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548] [2023-11-19 02:52:49,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:49,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:52:49,657 WARN L240 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_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548] [2023-11-19 02:52:49,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:49,682 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:52:49,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49 WrapperNode [2023-11-19 02:52:49,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:49,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:49,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:52:49,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:52:49,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,721 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-19 02:52:49,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:49,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:52:49,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:52:49,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:52:49,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:52:49,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:52:49,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:52:49,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:52:49,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:49,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:52:49,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:52:49,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0bbf5-9080-4fe3-a045-09f2d071c88f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:52:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:52:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:52:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:52:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:52:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:52:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:52:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:52:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:52:49,906 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:52:49,908 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:52:50,087 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:52:50,117 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:52:50,117 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 02:52:50,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:50 BoogieIcfgContainer [2023-11-19 02:52:50,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:52:50,124 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:52:50,124 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:52:50,135 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:52:50,135 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:50" (1/1) ... [2023-11-19 02:52:50,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:52:50,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:50,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 02:52:50,212 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 02:52:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:52:50,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:50,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:52:50,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:52:54,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 02:52:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2023-11-19 02:52:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2023-11-19 02:52:54,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:52:54,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:54,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 02:52:54,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:52:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2023-11-19 02:52:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2023-11-19 02:52:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 02:52:55,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:55,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:52:55,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:52:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2023-11-19 02:52:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-11-19 02:52:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 02:52:56,082 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:56,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:56,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:52:56,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 02:52:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2023-11-19 02:52:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-19 02:52:56,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:52:56,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:56,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:56,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:52:56,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 02:52:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 46 states and 68 transitions. [2023-11-19 02:52:58,804 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-11-19 02:52:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:52:58,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:58,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:58,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:52:58,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:53:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 02:53:39,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 02:53:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2023-11-19 02:53:45,537 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2023-11-19 02:53:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:53:45,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:45,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:45,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:53:45,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:53:45,865 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 02:53:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2023-11-19 02:53:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2023-11-19 02:53:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:53:47,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:47,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:47,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:53:47,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:53:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 02:53:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2023-11-19 02:53:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2023-11-19 02:53:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:53:48,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:48,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:48,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:53:48,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:53:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 02:53:51,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2023-11-19 02:53:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2023-11-19 02:53:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:53:51,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:51,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:53:51,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:53:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 02:53:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2023-11-19 02:53:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2023-11-19 02:53:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:53:52,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:52,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:52,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 02:53:52,335 INFO L285 TraceCheckSpWp]: Computing forward predicates...