./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.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_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9 --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 ccc90f911eb65e070ad46258a83153891dc4d8a5addf20ee75047318144d790b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:42:30,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:42:30,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:42:30,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:42:30,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:42:30,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:42:30,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:42:30,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:42:30,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:42:30,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:42:30,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:42:30,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:42:30,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:42:30,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:42:30,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:42:30,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:42:30,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:42:30,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:42:30,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:42:30,270 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:42:30,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:42:30,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:42:30,272 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:42:30,272 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:42:30,272 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:42:30,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:42:30,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:42:30,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:42:30,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:42:30,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:42:30,275 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:42:30,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:42:30,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:42:30,276 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_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccc90f911eb65e070ad46258a83153891dc4d8a5addf20ee75047318144d790b [2023-12-03 03:42:30,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:42:30,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:42:30,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:42:30,524 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:42:30,524 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:42:30,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2023-12-03 03:42:33,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:42:33,487 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:42:33,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2023-12-03 03:42:33,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/data/a4d2ccfef/e3af1e94e02a42b7b0fa337d5dda11be/FLAG92b82507a [2023-12-03 03:42:33,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/data/a4d2ccfef/e3af1e94e02a42b7b0fa337d5dda11be [2023-12-03 03:42:33,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:42:33,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:42:33,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:42:33,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:42:33,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:42:33,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744b42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33, skipping insertion in model container [2023-12-03 03:42:33,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:42:33,653 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_019d02fa-26dc-4fc4-a64e-b439fc565119/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2023-12-03 03:42:33,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:42:33,675 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:42:33,688 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_019d02fa-26dc-4fc4-a64e-b439fc565119/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2023-12-03 03:42:33,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:42:33,704 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:42:33,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33 WrapperNode [2023-12-03 03:42:33,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:42:33,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:42:33,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:42:33,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:42:33,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,734 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-03 03:42:33,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:42:33,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:42:33,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:42:33,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:42:33,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:42:33,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:42:33,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:42:33,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:42:33,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:42:33" (1/1) ... [2023-12-03 03:42:33,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:42:33,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:42:33,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:42:33,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:42:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:42:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:42:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:42:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:42:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:42:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:42:33,878 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:42:33,880 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:42:33,972 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:42:34,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:42:34,012 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:42:34,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:42:34 BoogieIcfgContainer [2023-12-03 03:42:34,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:42:34,014 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:42:34,014 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:42:34,022 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:42:34,022 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:42:34" (1/1) ... [2023-12-03 03:42:34,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:42:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-12-03 03:42:34,089 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-03 03:42:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:42:34,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:34,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 03:42:34,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:42:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-12-03 03:42:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-03 03:42:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:42:34,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:34,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 03:42:34,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:42:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-03 03:42:34,676 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-03 03:42:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:42:34,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:34,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:34,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 03:42:34,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:42:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-12-03 03:42:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-03 03:42:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:42:34,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:34,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:34,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:42:34,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:42:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-12-03 03:42:35,323 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-12-03 03:42:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 03:42:35,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:35,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:35,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 03:42:35,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:42:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-12-03 03:42:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-12-03 03:42:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 03:42:35,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:35,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 03:42:35,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 03:42:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2023-12-03 03:42:36,214 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2023-12-03 03:42:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 03:42:36,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:36,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:36,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 03:42:36,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 03:42:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:36,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-12-03 03:42:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-03 03:42:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 03:42:36,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:36,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:36,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 03:42:36,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 23 proven. 61 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-03 03:42:37,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:37,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2023-12-03 03:42:37,317 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-12-03 03:42:37,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 03:42:37,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:37,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:37,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-03 03:42:37,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 28 proven. 81 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-03 03:42:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2023-12-03 03:42:37,958 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-12-03 03:42:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 03:42:37,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:38,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-03 03:42:38,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 33 proven. 104 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-03 03:42:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2023-12-03 03:42:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2023-12-03 03:42:38,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 03:42:38,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:38,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-03 03:42:38,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 38 proven. 130 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-03 03:42:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2023-12-03 03:42:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2023-12-03 03:42:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 03:42:39,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:39,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:39,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-03 03:42:39,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 43 proven. 159 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-03 03:42:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:40,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2023-12-03 03:42:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2023-12-03 03:42:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 03:42:40,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:40,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:40,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-03 03:42:40,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 48 proven. 191 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-03 03:42:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 83 transitions. [2023-12-03 03:42:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2023-12-03 03:42:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 03:42:40,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:40,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:41,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-03 03:42:41,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:41,240 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 53 proven. 226 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-03 03:42:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2023-12-03 03:42:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2023-12-03 03:42:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-03 03:42:41,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:41,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-03 03:42:42,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 40 proven. 282 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-03 03:42:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2023-12-03 03:42:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2023-12-03 03:42:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-03 03:42:42,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:43,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-03 03:42:43,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 63 proven. 305 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-03 03:42:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2023-12-03 03:42:44,629 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2023-12-03 03:42:44,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-03 03:42:44,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:44,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:45,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 75 conjunts are in the unsatisfiable core [2023-12-03 03:42:45,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 68 proven. 349 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-03 03:42:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 66 states and 103 transitions. [2023-12-03 03:42:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 103 transitions. [2023-12-03 03:42:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-03 03:42:46,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:46,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 79 conjunts are in the unsatisfiable core [2023-12-03 03:42:46,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 73 proven. 396 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-03 03:42:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2023-12-03 03:42:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2023-12-03 03:42:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-03 03:42:47,937 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:48,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 83 conjunts are in the unsatisfiable core [2023-12-03 03:42:48,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 78 proven. 446 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-03 03:42:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2023-12-03 03:42:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2023-12-03 03:42:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-03 03:42:49,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:49,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:50,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 87 conjunts are in the unsatisfiable core [2023-12-03 03:42:50,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 83 proven. 499 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-03 03:42:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2023-12-03 03:42:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2023-12-03 03:42:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-03 03:42:51,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:52,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 91 conjunts are in the unsatisfiable core [2023-12-03 03:42:52,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 88 proven. 555 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-03 03:42:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:53,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 78 states and 123 transitions. [2023-12-03 03:42:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2023-12-03 03:42:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-03 03:42:53,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:53,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:53,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 95 conjunts are in the unsatisfiable core [2023-12-03 03:42:53,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 93 proven. 614 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-03 03:42:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 81 states and 128 transitions. [2023-12-03 03:42:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 128 transitions. [2023-12-03 03:42:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-03 03:42:55,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:55,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:55,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:42:55,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:42:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-03 03:43:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:43:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 71 states and 111 transitions. [2023-12-03 03:43:05,702 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2023-12-03 03:43:05,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:43:05,703 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 24 iterations. [2023-12-03 03:43:05,711 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 03:43:06,264 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:43:06,268 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:43:06,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:43:06 ImpRootNode [2023-12-03 03:43:06,268 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:43:06,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:43:06,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:43:06,269 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:43:06,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:42:34" (3/4) ... [2023-12-03 03:43:06,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:43:06,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 03:43:06,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 03:43:06,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 03:43:06,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 03:43:06,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:43:06,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:43:06,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:43:06,346 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:43:06,347 INFO L158 Benchmark]: Toolchain (without parser) took 32838.44ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 101.5MB in the beginning and 64.7MB in the end (delta: 36.8MB). Peak memory consumption was 114.2MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,347 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:43:06,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.56ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 90.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.32ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,349 INFO L158 Benchmark]: Boogie Preprocessor took 16.84ms. Allocated memory is still 146.8MB. Free memory was 89.5MB in the beginning and 88.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:43:06,349 INFO L158 Benchmark]: RCFGBuilder took 260.81ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 76.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,350 INFO L158 Benchmark]: CodeCheck took 32254.46ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 76.6MB in the beginning and 68.9MB in the end (delta: 7.7MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,350 INFO L158 Benchmark]: Witness Printer took 77.07ms. Allocated memory is still 222.3MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:43:06,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.7s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 967 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 680 mSDsluCounter, 1847 SdHoareTripleChecker+Invalid, 10.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1598 mSDsCounter, 2264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4327 IncrementalHoareTripleChecker+Invalid, 6591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2264 mSolverCounterUnsat, 249 mSDtfsCounter, 4327 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10671 GetRequests, 9795 SyntacticMatches, 610 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28292 ImplicationChecksByTransitivity, 21.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1761 NumberOfCodeBlocks, 1761 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 6601 SizeOfPredicates, 42 NumberOfNonLiveVariables, 4857 ConjunctsInSsa, 1179 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 7201/11706 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.56ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 90.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.32ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.84ms. Allocated memory is still 146.8MB. Free memory was 89.5MB in the beginning and 88.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.81ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 76.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 32254.46ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 76.6MB in the beginning and 68.9MB in the end (delta: 7.7MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * Witness Printer took 77.07ms. Allocated memory is still 222.3MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:43:06,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019d02fa-26dc-4fc4-a64e-b439fc565119/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE