./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/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 4b2ee659e7bd0f15011c822a777a938a0e6f5b3a8f826a051cccefa88973daa0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:09:33,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:09:33,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:09:33,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:09:33,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:09:33,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:09:33,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:09:33,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:09:33,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:09:33,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:09:33,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:09:33,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:09:33,986 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:09:33,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:09:33,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:09:33,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:09:33,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:09:33,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:09:33,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:09:33,989 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:09:33,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:09:33,990 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:09:33,991 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:09:33,991 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:09:33,992 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:09:33,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:09:33,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:33,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:09:33,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:09:33,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:09:33,995 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:09:33,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:09:33,995 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:09:33,996 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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b2ee659e7bd0f15011c822a777a938a0e6f5b3a8f826a051cccefa88973daa0 [2023-11-19 03:09:34,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:09:34,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:09:34,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:09:34,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:09:34,320 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:09:34,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c [2023-11-19 03:09:37,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:09:37,688 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:09:37,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c [2023-11-19 03:09:37,697 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/data/5e423611b/8d5b227b8bab43eb8d082692e2732514/FLAGbbc62b761 [2023-11-19 03:09:37,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/data/5e423611b/8d5b227b8bab43eb8d082692e2732514 [2023-11-19 03:09:37,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:09:37,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:09:37,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:37,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:09:37,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:09:37,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:37,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35947bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37, skipping insertion in model container [2023-11-19 03:09:37,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:37,747 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:09:37,901 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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c[458,471] [2023-11-19 03:09:37,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:37,933 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:09:37,946 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_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c[458,471] [2023-11-19 03:09:37,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:37,975 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:09:37,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37 WrapperNode [2023-11-19 03:09:37,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:37,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:37,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:09:37,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:09:37,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:37,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,023 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-11-19 03:09:38,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:38,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:09:38,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:09:38,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:09:38,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:09:38,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:09:38,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:09:38,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:09:38,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:37" (1/1) ... [2023-11-19 03:09:38,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:38,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:09:38,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:09:38,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0b6db-72d0-4bab-8dac-5263eaed56e0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:09:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:09:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:09:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:09:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:09:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:09:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:09:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:09:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:09:38,230 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:09:38,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:09:38,376 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:09:38,416 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:09:38,418 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:09:38,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:38 BoogieIcfgContainer [2023-11-19 03:09:38,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:09:38,425 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:09:38,425 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:09:38,435 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:09:38,436 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:38" (1/1) ... [2023-11-19 03:09:38,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:09:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-19 03:09:38,525 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-19 03:09:38,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:09:38,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:38,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:09:38,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 03:09:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 03:09:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:09:38,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:38,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:38,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:09:38,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:09:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:09:39,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:09:39,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:39,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:39,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:09:39,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:39,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-19 03:09:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-19 03:09:39,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:09:39,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:39,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:39,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:09:39,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-19 03:09:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-19 03:09:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:09:39,639 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:39,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:39,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:39,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:09:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-19 03:09:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-19 03:09:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:09:39,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:39,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:39,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:09:39,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:09:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-19 03:09:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-19 03:09:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:09:40,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:40,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:40,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:09:40,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:09:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2023-11-19 03:09:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-11-19 03:09:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:09:40,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:40,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 03:09:40,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:09:41,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 43 states and 71 transitions. [2023-11-19 03:09:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 71 transitions. [2023-11-19 03:09:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:09:41,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:41,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:41,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:09:41,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 03:09:54,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 03:09:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:54,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2023-11-19 03:09:54,997 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2023-11-19 03:09:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:09:54,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:54,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:55,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 03:09:55,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 03:09:56,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 54 states and 92 transitions. [2023-11-19 03:09:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2023-11-19 03:09:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:09:56,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:56,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-19 03:09:56,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 03:09:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 57 states and 97 transitions. [2023-11-19 03:09:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2023-11-19 03:09:57,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:09:57,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:57,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:57,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:09:57,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-19 03:09:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:58,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 65 states and 113 transitions. [2023-11-19 03:09:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 113 transitions. [2023-11-19 03:09:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:09:58,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:58,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:59,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:09:59,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 21 proven. 41 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:10:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:00,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 68 states and 118 transitions. [2023-11-19 03:10:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 118 transitions. [2023-11-19 03:10:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 03:10:00,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:00,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:00,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:10:00,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-19 03:10:01,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 76 states and 134 transitions. [2023-11-19 03:10:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 134 transitions. [2023-11-19 03:10:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 03:10:01,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:01,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:02,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:10:02,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 22 proven. 71 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 03:10:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 79 states and 139 transitions. [2023-11-19 03:10:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 139 transitions. [2023-11-19 03:10:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 03:10:03,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:03,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 03:10:03,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 13 proven. 64 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-19 03:10:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 87 states and 155 transitions. [2023-11-19 03:10:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 155 transitions. [2023-11-19 03:10:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 03:10:05,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:05,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:06,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 03:10:06,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:06,651 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 27 proven. 94 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 03:10:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 90 states and 160 transitions. [2023-11-19 03:10:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 160 transitions. [2023-11-19 03:10:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 03:10:07,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:07,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:07,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-19 03:10:07,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 45 proven. 71 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-19 03:10:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 114 states and 199 transitions. [2023-11-19 03:10:12,358 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 199 transitions. [2023-11-19 03:10:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 03:10:12,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:12,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:12,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-19 03:10:12,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 16 proven. 63 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-19 03:10:13,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 120 states and 208 transitions. [2023-11-19 03:10:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 208 transitions. [2023-11-19 03:10:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 03:10:13,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:14,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-19 03:10:14,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 46 proven. 115 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 03:10:15,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 123 states and 213 transitions. [2023-11-19 03:10:15,562 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 213 transitions. [2023-11-19 03:10:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 03:10:15,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:15,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:15,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 03:10:15,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 18 proven. 84 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 03:10:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 131 states and 229 transitions. [2023-11-19 03:10:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 229 transitions. [2023-11-19 03:10:18,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 03:10:18,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:19,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 03:10:19,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 58 proven. 128 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 03:10:32,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []