./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/hard-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/hard-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi --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 98c9c42af626702ddf5387966d0ee6d8ed18622c4592b3b15adb184fa40ea1b1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:53:07,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:53:07,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:53:07,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:53:07,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:53:07,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:53:07,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:53:07,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:53:07,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:53:07,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:53:07,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:53:07,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:53:07,686 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:53:07,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:53:07,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:53:07,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:53:07,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:53:07,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:53:07,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:53:07,690 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:53:07,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:53:07,691 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:53:07,692 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:53:07,693 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:53:07,693 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:53:07,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:53:07,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:53:07,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:53:07,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:53:07,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:53:07,698 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:53:07,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:53:07,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:53:07,699 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_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c9c42af626702ddf5387966d0ee6d8ed18622c4592b3b15adb184fa40ea1b1 [2023-11-24 22:53:07,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:53:07,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:53:07,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:53:07,994 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:53:07,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:53:07,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench/hard-u.c [2023-11-24 22:53:11,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:53:11,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:53:11,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/sv-benchmarks/c/nla-digbench/hard-u.c [2023-11-24 22:53:11,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/data/104f941c9/d4ee495428894a2e97e2800fd6658a08/FLAG9fc5cc323 [2023-11-24 22:53:11,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/data/104f941c9/d4ee495428894a2e97e2800fd6658a08 [2023-11-24 22:53:11,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:53:11,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:53:11,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:53:11,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:53:11,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:53:11,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac3418d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11, skipping insertion in model container [2023-11-24 22:53:11,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:53:11,717 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_efda1e95-3da3-418e-9494-0864afebebf7/sv-benchmarks/c/nla-digbench/hard-u.c[537,550] [2023-11-24 22:53:11,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:53:11,758 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:53:11,775 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_efda1e95-3da3-418e-9494-0864afebebf7/sv-benchmarks/c/nla-digbench/hard-u.c[537,550] [2023-11-24 22:53:11,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:53:11,815 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:53:11,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11 WrapperNode [2023-11-24 22:53:11,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:53:11,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:53:11,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:53:11,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:53:11,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,862 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2023-11-24 22:53:11,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:53:11,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:53:11,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:53:11,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:53:11,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:53:11,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:53:11,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:53:11,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:53:11,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:11" (1/1) ... [2023-11-24 22:53:11,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:53:11,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:53:11,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:53:11,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efda1e95-3da3-418e-9494-0864afebebf7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:53:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:53:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:53:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:53:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:53:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:53:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:53:12,087 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:53:12,090 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:53:12,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:53:12,405 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:53:12,407 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:53:12,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:12 BoogieIcfgContainer [2023-11-24 22:53:12,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:53:12,410 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:53:12,410 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:53:12,422 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:53:12,422 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:12" (1/1) ... [2023-11-24 22:53:12,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:53:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-11-24 22:53:12,515 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-11-24 22:53:12,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:53:12,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:13,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2023-11-24 22:53:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2023-11-24 22:53:13,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:53:13,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:13,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 47 transitions. [2023-11-24 22:53:13,587 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 47 transitions. [2023-11-24 22:53:13,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:53:13,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:13,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:53:13,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 56 transitions. [2023-11-24 22:53:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 56 transitions. [2023-11-24 22:53:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:53:14,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:53:14,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:53:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2023-11-24 22:53:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2023-11-24 22:53:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:53:14,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:53:14,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 22:53:21,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-24 22:53:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 40 states and 76 transitions. [2023-11-24 22:53:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 76 transitions. [2023-11-24 22:53:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:53:24,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:24,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:25,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-24 22:53:25,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:53:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 45 states and 88 transitions. [2023-11-24 22:53:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 88 transitions. [2023-11-24 22:53:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 22:53:37,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:37,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:37,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:53:37,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:53:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 50 states and 102 transitions. [2023-11-24 22:53:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 102 transitions. [2023-11-24 22:53:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 22:53:56,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:56,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:56,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 22:54:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 54 states and 111 transitions. [2023-11-24 22:54:10,322 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 111 transitions. [2023-11-24 22:54:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 22:54:10,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:10,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:10,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:54:10,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.