./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/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_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --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 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:07:30,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:07:30,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:07:30,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:07:30,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:07:30,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:07:30,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:07:30,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:07:30,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:07:30,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:07:30,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:07:30,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:07:30,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:07:30,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:07:30,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:07:30,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:07:30,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:07:30,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:07:30,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:07:30,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:07:30,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:07:30,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:07:30,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:07:30,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:07:30,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:07:30,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:07:30,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:07:30,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:07:30,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:07:30,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:07:30,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:07:30,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:07:30,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:07:30,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:07:30,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:07:30,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:07:30,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:07:30,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:07:30,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:07:30,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:07:30,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:07:30,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:07:30,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:07:30,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:07:30,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:07:30,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:07:30,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:07:30,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:07:30,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:07:30,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:07:30,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:07:30,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:07:30,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:07:30,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:07:30,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:07:30,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:07:30,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:07:30,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:07:30,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:07:30,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:07:30,305 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:07:30,305 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:07:30,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:07:30,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:30,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:07:30,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:07:30,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:07:30,306 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:07:30,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:07:30,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:07:30,307 INFO L138 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_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccc90f911eb65e070ad46258a83153891dc4d8a5addf20ee75047318144d790b [2021-10-29 03:07:30,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:07:30,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:07:30,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:07:30,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:07:30,660 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:07:30,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2021-10-29 03:07:30,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/data/16f89ad6a/517ddb3fa53c4345b002a59422bb6fbf/FLAGcb2d5bdc9 [2021-10-29 03:07:31,329 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:07:31,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2021-10-29 03:07:31,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/data/16f89ad6a/517ddb3fa53c4345b002a59422bb6fbf/FLAGcb2d5bdc9 [2021-10-29 03:07:31,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/data/16f89ad6a/517ddb3fa53c4345b002a59422bb6fbf [2021-10-29 03:07:31,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:07:31,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:07:31,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:31,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:07:31,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:07:31,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:31" (1/1) ... [2021-10-29 03:07:31,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bae5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:31, skipping insertion in model container [2021-10-29 03:07:31,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:31" (1/1) ... [2021-10-29 03:07:31,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:07:31,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:07:31,948 WARN L228 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_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2021-10-29 03:07:31,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:31,981 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:07:31,997 WARN L228 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_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2021-10-29 03:07:32,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:32,020 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:07:32,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32 WrapperNode [2021-10-29 03:07:32,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:32,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:32,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:07:32,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:07:32,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:32,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:07:32,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:07:32,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:07:32,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:07:32,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:07:32,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:07:32,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:07:32,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:32,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:07:32,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:07:32,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:07:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:07:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:07:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:07:32,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:07:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:07:32,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:07:32,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:07:32,506 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:07:32,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:32 BoogieIcfgContainer [2021-10-29 03:07:32,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:07:32,509 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:07:32,509 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:07:32,526 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:07:32,526 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:32" (1/1) ... [2021-10-29 03:07:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:07:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-10-29 03:07:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-29 03:07:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:07:32,596 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:32,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:32,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:07:32,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-10-29 03:07:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-10-29 03:07:32,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:07:32,968 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:32,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:33,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:07:33,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:33,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-10-29 03:07:33,467 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-10-29 03:07:33,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:07:33,467 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:33,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:33,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:07:33,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:33,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-10-29 03:07:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-10-29 03:07:33,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 03:07:33,889 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:33,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:33,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 03:07:33,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 03:07:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-10-29 03:07:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-10-29 03:07:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 03:07:34,391 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:34,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:34,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:07:34,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 03:07:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-10-29 03:07:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-10-29 03:07:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 03:07:34,984 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:34,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:35,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-29 03:07:35,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 03:07:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-10-29 03:07:35,679 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-10-29 03:07:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 03:07:35,681 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:35,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:35,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:07:35,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 03:07:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:36,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-10-29 03:07:36,519 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-10-29 03:07:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 03:07:36,521 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:36,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:36,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-29 03:07:36,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 03:07:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2021-10-29 03:07:37,580 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-10-29 03:07:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 03:07:37,582 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:37,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:37,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-29 03:07:37,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-29 03:07:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2021-10-29 03:07:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2021-10-29 03:07:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-29 03:07:38,725 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:38,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:38,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-29 03:07:38,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-29 03:07:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2021-10-29 03:07:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2021-10-29 03:07:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 03:07:39,989 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:39,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:40,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-29 03:07:40,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-29 03:07:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2021-10-29 03:07:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2021-10-29 03:07:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-29 03:07:41,446 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:41,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:41,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-29 03:07:41,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-29 03:07:43,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2021-10-29 03:07:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2021-10-29 03:07:43,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-29 03:07:43,192 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:43,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:43,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-29 03:07:43,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:43,962 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-29 03:07:45,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 83 transitions. [2021-10-29 03:07:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2021-10-29 03:07:45,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-29 03:07:45,009 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:45,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:45,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-29 03:07:45,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-10-29 03:07:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2021-10-29 03:07:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2021-10-29 03:07:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-29 03:07:47,262 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:47,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:47,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-29 03:07:47,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-29 03:07:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2021-10-29 03:07:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2021-10-29 03:07:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-29 03:07:50,046 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:50,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:50,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-29 03:07:50,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-10-29 03:07:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2021-10-29 03:07:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2021-10-29 03:07:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-29 03:07:53,177 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:53,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:53,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 67 conjunts are in the unsatisfiable core [2021-10-29 03:07:53,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-10-29 03:07:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 66 states and 103 transitions. [2021-10-29 03:07:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 103 transitions. [2021-10-29 03:07:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-29 03:07:56,409 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:56,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-29 03:07:56,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:07:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-10-29 03:08:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:00,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2021-10-29 03:08:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2021-10-29 03:08:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-29 03:08:00,371 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:00,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:00,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 75 conjunts are in the unsatisfiable core [2021-10-29 03:08:00,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:08:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-10-29 03:08:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2021-10-29 03:08:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2021-10-29 03:08:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-29 03:08:04,443 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:04,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:04,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 79 conjunts are in the unsatisfiable core [2021-10-29 03:08:04,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:08:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-29 03:08:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2021-10-29 03:08:09,728 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2021-10-29 03:08:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-29 03:08:09,729 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:09,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:10,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 83 conjunts are in the unsatisfiable core [2021-10-29 03:08:10,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:08:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-10-29 03:08:14,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 78 states and 123 transitions. [2021-10-29 03:08:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2021-10-29 03:08:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-10-29 03:08:14,851 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:14,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:14,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 87 conjunts are in the unsatisfiable core [2021-10-29 03:08:14,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:08:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-10-29 03:08:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 81 states and 128 transitions. [2021-10-29 03:08:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 128 transitions. [2021-10-29 03:08:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-29 03:08:20,561 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:20,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:20,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:08:20,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:08:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-10-29 03:08:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 71 states and 111 transitions. [2021-10-29 03:08:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2021-10-29 03:08:48,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:08:48,203 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 24 iterations. [2021-10-29 03:08:48,210 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:08:49,179 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:08:49,182 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:08:49,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:08:49 ImpRootNode [2021-10-29 03:08:49,183 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:08:49,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:08:49,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:08:49,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:08:49,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:32" (3/4) ... [2021-10-29 03:08:49,188 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:08:49,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:08:49,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 03:08:49,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:08:49,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:08:49,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:08:49,238 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:08:49,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:08:49,240 INFO L168 Benchmark]: Toolchain (without parser) took 77551.52 ms. Allocated memory was 130.0 MB in the beginning and 195.0 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 127.3 MB in the end (delta: -27.9 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,241 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:49,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.88 ms. Allocated memory is still 130.0 MB. Free memory was 99.1 MB in the beginning and 104.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.57 ms. Allocated memory is still 130.0 MB. Free memory was 104.6 MB in the beginning and 103.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,246 INFO L168 Benchmark]: Boogie Preprocessor took 48.12 ms. Allocated memory is still 130.0 MB. Free memory was 103.2 MB in the beginning and 102.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:49,246 INFO L168 Benchmark]: RCFGBuilder took 392.48 ms. Allocated memory is still 130.0 MB. Free memory was 102.1 MB in the beginning and 91.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,247 INFO L168 Benchmark]: CodeCheck took 76674.12 ms. Allocated memory was 130.0 MB in the beginning and 195.0 MB in the end (delta: 65.0 MB). Free memory was 90.6 MB in the beginning and 129.4 MB in the end (delta: -38.8 MB). Peak memory consumption was 114.0 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,247 INFO L168 Benchmark]: Witness Printer took 54.42 ms. Allocated memory is still 195.0 MB. Free memory was 129.4 MB in the beginning and 127.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:49,250 INFO L339 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: 75.6s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46137344 SDtfs, 37748812 SDslu, 50331792 SDs, 0 SdLazy, 218104264 SolverSat, 94371980 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10614 GetRequests, 9593 SyntacticMatches, 751 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37982 ImplicationChecksByTransitivity, 58.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 1761 NumberOfCodeBlocks, 1761 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 8397 SizeOfPredicates, 25 NumberOfNonLiveVariables, 5179 ConjunctsInSsa, 1025 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 7295/11706 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]: call to reach_error is unreachable For all program executions holds that 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 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.88 ms. Allocated memory is still 130.0 MB. Free memory was 99.1 MB in the beginning and 104.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.57 ms. Allocated memory is still 130.0 MB. Free memory was 104.6 MB in the beginning and 103.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.12 ms. Allocated memory is still 130.0 MB. Free memory was 103.2 MB in the beginning and 102.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 392.48 ms. Allocated memory is still 130.0 MB. Free memory was 102.1 MB in the beginning and 91.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 76674.12 ms. Allocated memory was 130.0 MB in the beginning and 195.0 MB in the end (delta: 65.0 MB). Free memory was 90.6 MB in the beginning and 129.4 MB in the end (delta: -38.8 MB). Peak memory consumption was 114.0 MB. Max. memory is 16.1 GB. * Witness Printer took 54.42 ms. Allocated memory is still 195.0 MB. Free memory was 129.4 MB in the beginning and 127.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:08:49,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8f9175-be33-4ec5-8fb2-50c2b615cb3b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...