./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/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 1009b309b84d3a678e4f12db10e873a2b96e065352111c00074b04d416cca18d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:06:22,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:06:22,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:06:22,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:06:22,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:06:22,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:06:22,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:06:22,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:06:22,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:06:22,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:06:22,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:06:22,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:06:22,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:06:22,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:06:22,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:06:22,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:06:22,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:06:22,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:06:22,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:06:22,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:06:22,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:06:22,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:06:22,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:06:22,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:06:22,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:06:22,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:06:22,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:06:22,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:06:22,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:06:22,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:06:22,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:06:22,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:06:22,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:06:22,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:06:22,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:06:22,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:06:22,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:06:22,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:06:22,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:06:22,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:06:22,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:06:22,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:06:22,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:06:22,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:06:22,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:06:22,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:06:22,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:06:22,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:06:22,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:06:22,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:06:22,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:06:22,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:06:22,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:06:22,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:06:22,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:06:22,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:06:22,361 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:06:22,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:06:22,362 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:06:22,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:06:22,362 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:06:22,362 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:06:22,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:06:22,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:06:22,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:06:22,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:06:22,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:06:22,364 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:06:22,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:06:22,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:06:22,364 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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1009b309b84d3a678e4f12db10e873a2b96e065352111c00074b04d416cca18d [2021-10-29 03:06:22,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:06:22,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:06:22,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:06:22,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:06:22,746 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:06:22,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c [2021-10-29 03:06:22,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/data/660247f62/7c172b41d42f4370a4b624c4b95af6e0/FLAG02de174f1 [2021-10-29 03:06:23,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:06:23,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c [2021-10-29 03:06:23,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/data/660247f62/7c172b41d42f4370a4b624c4b95af6e0/FLAG02de174f1 [2021-10-29 03:06:23,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/data/660247f62/7c172b41d42f4370a4b624c4b95af6e0 [2021-10-29 03:06:23,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:06:23,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:06:23,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:06:23,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:06:23,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:06:23,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:23,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614379f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23, skipping insertion in model container [2021-10-29 03:06:23,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:23,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:06:23,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:06:23,924 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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c[588,601] [2021-10-29 03:06:23,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:06:23,957 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:06:23,970 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_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c[588,601] [2021-10-29 03:06:23,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:06:23,995 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:06:23,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23 WrapperNode [2021-10-29 03:06:23,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:06:23,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:06:23,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:06:23,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:06:24,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:06:24,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:06:24,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:06:24,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:06:24,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:06:24,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:06:24,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:06:24,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:06:24,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:23" (1/1) ... [2021-10-29 03:06:24,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:06:24,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:06:24,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:06:24,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:06:24,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:06:24,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:06:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:06:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:06:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:06:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:06:24,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:06:24,510 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:06:24,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:24 BoogieIcfgContainer [2021-10-29 03:06:24,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:06:24,514 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:06:24,514 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:06:24,542 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:06:24,542 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:24" (1/1) ... [2021-10-29 03:06:24,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:06:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-10-29 03:06:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-10-29 03:06:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:06:24,602 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:24,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:24,906 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 03:06:25,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 46 transitions. [2021-10-29 03:06:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2021-10-29 03:06:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:06:25,076 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:25,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:25,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:06:25,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:06:25,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 52 transitions. [2021-10-29 03:06:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2021-10-29 03:06:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 03:06:25,618 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:25,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:25,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:06:25,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 03:06:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 61 transitions. [2021-10-29 03:06:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2021-10-29 03:06:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 03:06:26,164 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:26,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:26,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:06:26,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 03:06:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 66 transitions. [2021-10-29 03:06:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2021-10-29 03:06:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 03:06:26,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:26,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:26,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:06:26,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 03:06:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 69 transitions. [2021-10-29 03:06:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2021-10-29 03:06:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 03:06:26,807 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:26,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:26,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:26,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-29 03:06:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 66 transitions. [2021-10-29 03:06:27,465 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-10-29 03:06:27,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 03:06:27,467 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:27,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:27,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:06:27,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-29 03:06:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 81 transitions. [2021-10-29 03:06:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 81 transitions. [2021-10-29 03:06:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-29 03:06:28,268 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:28,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:28,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 03:06:28,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 03:06:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 88 transitions. [2021-10-29 03:06:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2021-10-29 03:06:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 03:06:28,974 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:28,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:29,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 03:06:29,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-29 03:06:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 52 states and 96 transitions. [2021-10-29 03:06:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2021-10-29 03:06:29,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 03:06:29,823 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:29,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:29,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:06:29,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:30,198 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-29 03:06:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 53 states and 98 transitions. [2021-10-29 03:06:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 98 transitions. [2021-10-29 03:06:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-29 03:06:30,623 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:30,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:30,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:30,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-29 03:06:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 54 states and 101 transitions. [2021-10-29 03:06:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2021-10-29 03:06:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-29 03:06:31,061 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:31,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:31,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:31,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-10-29 03:06:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 54 states and 100 transitions. [2021-10-29 03:06:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2021-10-29 03:06:31,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-29 03:06:31,464 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:31,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:31,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-29 03:06:31,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-29 03:06:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 57 states and 106 transitions. [2021-10-29 03:06:33,062 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 106 transitions. [2021-10-29 03:06:33,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-29 03:06:33,064 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:33,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:33,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:06:33,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-29 03:06:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:34,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 60 states and 112 transitions. [2021-10-29 03:06:34,229 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2021-10-29 03:06:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 03:06:34,230 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:34,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:34,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 03:06:34,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-10-29 03:06:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 61 states and 115 transitions. [2021-10-29 03:06:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 115 transitions. [2021-10-29 03:06:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-29 03:06:35,767 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:35,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:35,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 03:06:35,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-10-29 03:06:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 65 states and 122 transitions. [2021-10-29 03:06:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-10-29 03:06:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-29 03:06:37,072 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:37,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:37,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-29 03:06:37,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-29 03:06:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:37,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 67 states and 127 transitions. [2021-10-29 03:06:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 127 transitions. [2021-10-29 03:06:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-29 03:06:37,940 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:37,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:37,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 03:06:37,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:38,449 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-29 03:06:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 68 states and 129 transitions. [2021-10-29 03:06:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions. [2021-10-29 03:06:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-29 03:06:39,117 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:39,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:39,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:39,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:39,591 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-10-29 03:06:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 70 states and 132 transitions. [2021-10-29 03:06:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2021-10-29 03:06:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-29 03:06:40,228 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:40,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:40,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 03:06:40,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-10-29 03:06:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 71 states and 135 transitions. [2021-10-29 03:06:40,983 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 135 transitions. [2021-10-29 03:06:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-29 03:06:40,984 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:40,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:41,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:41,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-10-29 03:06:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 73 states and 138 transitions. [2021-10-29 03:06:42,957 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2021-10-29 03:06:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-29 03:06:42,959 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:42,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:43,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:06:43,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-10-29 03:06:43,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:43,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 73 states and 137 transitions. [2021-10-29 03:06:43,458 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2021-10-29 03:06:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-10-29 03:06:43,459 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:43,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:43,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 03:06:43,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-10-29 03:06:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 76 states and 143 transitions. [2021-10-29 03:06:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-10-29 03:06:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-29 03:06:45,953 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:45,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:46,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:06:46,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2021-10-29 03:06:47,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 46 states and 76 transitions. [2021-10-29 03:06:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2021-10-29 03:06:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-29 03:06:47,788 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:47,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:47,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-29 03:06:47,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-10-29 03:06:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 45 states and 72 transitions. [2021-10-29 03:06:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2021-10-29 03:06:49,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-10-29 03:06:49,387 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:49,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:06:49,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:06:49,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:06:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-29 03:06:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 38 states and 62 transitions. [2021-10-29 03:06:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-10-29 03:06:52,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:06:52,119 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2021-10-29 03:06:52,126 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:06:52,810 INFO L565 CodeCheckObserver]: Invariant with dag size 39 [2021-10-29 03:06:52,821 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:06:52,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:06:52 ImpRootNode [2021-10-29 03:06:52,822 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:06:52,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:06:52,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:06:52,822 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:06:52,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:24" (3/4) ... [2021-10-29 03:06:52,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:06:52,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:06:52,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 03:06:52,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:06:52,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:06:52,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:06:52,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:06:52,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:06:52,887 INFO L168 Benchmark]: Toolchain (without parser) took 29168.97 ms. Allocated memory was 117.4 MB in the beginning and 232.8 MB in the end (delta: 115.3 MB). Free memory was 79.9 MB in the beginning and 128.4 MB in the end (delta: -48.4 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,888 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 117.4 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:06:52,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 91.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.32 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 90.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:06:52,889 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 88.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,890 INFO L168 Benchmark]: RCFGBuilder took 450.05 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 76.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,891 INFO L168 Benchmark]: CodeCheck took 28307.66 ms. Allocated memory was 117.4 MB in the beginning and 232.8 MB in the end (delta: 115.3 MB). Free memory was 76.0 MB in the beginning and 131.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,891 INFO L168 Benchmark]: Witness Printer took 63.42 ms. Allocated memory is still 232.8 MB. Free memory was 131.4 MB in the beginning and 128.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:52,895 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.5s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 851443712 SDtfs, 182005868 SDslu, 280076416 SDs, 0 SdLazy, -2106599176 SolverSat, 638220160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11998 GetRequests, 11452 SyntacticMatches, 292 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38134 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1516 NumberOfCodeBlocks, 1516 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1490 ConstructedInterpolants, 0 QuantifiedInterpolants, 5279 SizeOfPredicates, 41 NumberOfNonLiveVariables, 4024 ConjunctsInSsa, 355 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 6513/6750 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: 17]: 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: 33]: Loop Invariant Derived loop invariant: ((((1 <= a || (n == 2 && !(6 * n == x + 4))) || !(z == 6 * n + 6)) || (0 <= a && n == 1)) || (!(n == 2 && y + 5 == 12 * n) && !(y == 6 * n + 1 && n == 1))) || (!(x == 1) && n == 1) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 117.4 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 91.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.32 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 90.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.59 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 88.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.05 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 76.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 28307.66 ms. Allocated memory was 117.4 MB in the beginning and 232.8 MB in the end (delta: 115.3 MB). Free memory was 76.0 MB in the beginning and 131.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. * Witness Printer took 63.42 ms. Allocated memory is still 232.8 MB. Free memory was 131.4 MB in the beginning and 128.4 MB in the end (delta: 3.1 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 03:06:52,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c31c21-3d82-4cc2-80c3-03074fa93f7e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...