./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:54:42,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:54:42,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:54:42,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:54:42,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:54:42,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:54:42,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:54:42,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:54:42,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:54:42,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:54:42,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:54:42,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:54:42,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:54:42,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:54:42,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:54:42,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:54:42,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:54:42,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:54:42,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:54:42,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:54:42,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:54:42,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:54:42,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:54:42,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:54:42,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:54:42,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:54:42,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:54:42,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:54:42,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:54:42,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:54:42,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:54:42,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:54:42,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:54:42,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:54:42,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:54:42,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:54:42,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:54:42,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:54:42,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:54:42,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:54:42,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:54:42,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 04:54:42,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:54:42,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:54:42,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:54:42,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:54:42,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:54:42,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:54:42,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:54:42,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 04:54:42,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:54:42,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 04:54:42,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:54:42,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:54:42,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:54:42,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:54:42,488 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 04:54:42,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:54:42,488 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:54:42,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:54:42,489 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:54:42,489 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:54:42,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:54:42,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:54:42,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:54:42,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:54:42,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:54:42,490 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:54:42,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:54:42,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:54:42,491 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_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-11-21 04:54:42,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:54:42,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:54:42,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:54:42,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:54:42,759 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:54:42,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-21 04:54:42,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/data/7326963ae/dfc4c2d5f5514c53b038d0a63277b82a/FLAGe209c7d73 [2021-11-21 04:54:43,310 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:54:43,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-21 04:54:43,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/data/7326963ae/dfc4c2d5f5514c53b038d0a63277b82a/FLAGe209c7d73 [2021-11-21 04:54:43,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/data/7326963ae/dfc4c2d5f5514c53b038d0a63277b82a [2021-11-21 04:54:43,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:54:43,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:54:43,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:54:43,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:54:43,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:54:43,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:43,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abcf415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43, skipping insertion in model container [2021-11-21 04:54:43,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:43,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:54:43,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:54:43,858 WARN L230 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_b63f4941-acb5-449e-a472-94d73efa85c4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-21 04:54:43,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:54:43,915 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:54:43,946 WARN L230 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_b63f4941-acb5-449e-a472-94d73efa85c4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-21 04:54:43,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:54:43,979 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:54:43,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43 WrapperNode [2021-11-21 04:54:43,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:54:43,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:54:43,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:54:43,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:54:43,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,043 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2021-11-21 04:54:44,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:54:44,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:54:44,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:54:44,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:54:44,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:54:44,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:54:44,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:54:44,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:54:44,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:43" (1/1) ... [2021-11-21 04:54:44,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:54:44,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:54:44,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:54:44,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:54:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 04:54:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 04:54:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:54:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:54:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 04:54:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 04:54:44,218 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:54:44,219 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:54:44,381 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:54:44,400 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:54:44,400 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 04:54:44,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:44 BoogieIcfgContainer [2021-11-21 04:54:44,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:54:44,404 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:54:44,404 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:54:44,414 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:54:44,414 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:44" (1/1) ... [2021-11-21 04:54:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:54:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:44,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2021-11-21 04:54:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2021-11-21 04:54:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 04:54:44,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:44,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:54:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2021-11-21 04:54:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2021-11-21 04:54:44,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 04:54:44,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:44,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:54:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2021-11-21 04:54:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2021-11-21 04:54:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 04:54:45,154 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:45,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:54:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2021-11-21 04:54:45,338 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2021-11-21 04:54:45,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 04:54:45,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:45,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 04:54:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2021-11-21 04:54:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2021-11-21 04:54:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 04:54:45,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:45,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-21 04:54:45,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2021-11-21 04:54:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-21 04:54:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 04:54:45,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:45,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-21 04:54:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2021-11-21 04:54:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2021-11-21 04:54:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 04:54:45,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:45,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-21 04:54:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2021-11-21 04:54:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2021-11-21 04:54:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-21 04:54:46,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-21 04:54:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2021-11-21 04:54:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2021-11-21 04:54:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 04:54:46,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-21 04:54:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2021-11-21 04:54:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2021-11-21 04:54:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 04:54:46,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-21 04:54:46,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2021-11-21 04:54:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2021-11-21 04:54:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 04:54:46,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-21 04:54:46,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2021-11-21 04:54:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2021-11-21 04:54:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 04:54:46,502 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-21 04:54:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2021-11-21 04:54:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2021-11-21 04:54:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 04:54:46,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-21 04:54:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2021-11-21 04:54:46,938 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2021-11-21 04:54:46,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 04:54:46,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:46,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-21 04:54:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2021-11-21 04:54:47,102 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2021-11-21 04:54:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-21 04:54:47,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-21 04:54:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2021-11-21 04:54:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2021-11-21 04:54:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-21 04:54:47,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-21 04:54:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2021-11-21 04:54:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2021-11-21 04:54:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-21 04:54:47,585 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-21 04:54:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2021-11-21 04:54:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2021-11-21 04:54:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 04:54:47,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-21 04:54:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2021-11-21 04:54:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2021-11-21 04:54:47,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-21 04:54:47,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-21 04:54:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2021-11-21 04:54:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2021-11-21 04:54:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 04:54:47,905 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-21 04:54:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2021-11-21 04:54:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2021-11-21 04:54:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-21 04:54:47,985 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:47,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-21 04:54:48,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:48,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2021-11-21 04:54:48,416 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2021-11-21 04:54:48,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-21 04:54:48,417 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:48,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-21 04:54:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2021-11-21 04:54:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2021-11-21 04:54:49,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-21 04:54:49,085 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:49,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-21 04:54:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2021-11-21 04:54:50,057 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-21 04:54:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-21 04:54:50,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:50,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-21 04:54:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2021-11-21 04:54:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2021-11-21 04:54:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-21 04:54:50,771 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:50,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-21 04:54:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2021-11-21 04:54:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2021-11-21 04:54:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-21 04:54:51,140 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:51,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-21 04:54:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2021-11-21 04:54:51,571 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2021-11-21 04:54:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-21 04:54:51,572 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:51,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-11-21 04:54:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2021-11-21 04:54:51,633 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2021-11-21 04:54:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-21 04:54:51,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:51,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-21 04:54:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2021-11-21 04:54:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2021-11-21 04:54:52,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-21 04:54:52,204 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:52,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:52,271 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-21 04:54:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:52,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2021-11-21 04:54:52,854 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2021-11-21 04:54:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-21 04:54:52,856 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:52,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-21 04:54:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2021-11-21 04:54:53,776 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2021-11-21 04:54:53,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 04:54:53,777 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:54:53,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:54:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:54:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-21 04:54:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:54:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2021-11-21 04:54:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2021-11-21 04:54:54,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 04:54:54,570 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2021-11-21 04:54:54,578 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-21 04:54:54,773 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 04:54:54,776 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 04:54:54,778 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 04:54:54,778 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 04:54:54,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:54:54 ImpRootNode [2021-11-21 04:54:54,778 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:54:54,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:54:54,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:54:54,779 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:54:54,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:44" (3/4) ... [2021-11-21 04:54:54,782 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 04:54:54,788 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-21 04:54:54,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-21 04:54:54,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-21 04:54:54,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 04:54:54,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 04:54:54,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:54:54,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:54:54,870 INFO L158 Benchmark]: Toolchain (without parser) took 11194.95ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 62.3MB in the beginning and 138.3MB in the end (delta: -75.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:54:54,871 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:54:54,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.54ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 74.3MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.85ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,872 INFO L158 Benchmark]: Boogie Preprocessor took 37.12ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.4MB in the end (delta: 986.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,873 INFO L158 Benchmark]: RCFGBuilder took 321.47ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 59.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,873 INFO L158 Benchmark]: CodeCheck took 10374.28ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 59.1MB in the beginning and 142.5MB in the end (delta: -83.4MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,874 INFO L158 Benchmark]: Witness Printer took 91.12ms. Allocated memory is still 174.1MB. Free memory was 142.5MB in the beginning and 138.3MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:54:54,876 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5370 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1401 mSDsCounter, 2960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2960 mSolverCounterUnsat, 2903 mSDtfsCounter, 8321 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 14875 SyntacticMatches, 289 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1938 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 6559/6633 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: 19]: 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: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.54ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 74.3MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.85ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.12ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.4MB in the end (delta: 986.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.47ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 59.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 10374.28ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 59.1MB in the beginning and 142.5MB in the end (delta: -83.4MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * Witness Printer took 91.12ms. Allocated memory is still 174.1MB. Free memory was 142.5MB in the beginning and 138.3MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-21 04:54:54,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63f4941-acb5-449e-a472-94d73efa85c4/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE