./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ --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-aef121e [2021-11-23 00:24:07,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:24:07,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:24:07,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:24:07,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:24:07,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:24:07,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:24:07,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:24:07,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:24:07,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:24:07,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:24:07,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:24:07,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:24:07,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:24:07,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:24:07,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:24:07,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:24:07,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:24:07,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:24:07,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:24:07,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:24:07,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:24:07,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:24:07,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:24:07,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:24:07,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:24:07,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:24:07,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:24:07,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:24:07,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:24:07,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:24:07,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:24:07,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:24:07,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:24:07,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:24:07,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:24:07,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:24:07,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:24:07,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:24:07,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:24:07,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:24:07,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:24:07,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:24:07,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:24:07,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:24:07,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:24:07,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:24:07,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:24:07,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:24:07,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:24:07,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:24:07,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:24:07,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:24:07,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:24:07,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:24:07,547 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:24:07,548 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:24:07,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:24:07,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:24:07,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:24:07,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:24:07,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:24:07,549 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:24:07,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:24:07,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:24:07,549 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_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-11-23 00:24:07,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:24:07,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:24:07,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:24:07,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:24:07,886 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:24:07,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-23 00:24:07,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/data/139529ac6/69c4423fcd1344df807a105c81709abd/FLAGc3dfd4616 [2021-11-23 00:24:08,409 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:24:08,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-23 00:24:08,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/data/139529ac6/69c4423fcd1344df807a105c81709abd/FLAGc3dfd4616 [2021-11-23 00:24:08,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/data/139529ac6/69c4423fcd1344df807a105c81709abd [2021-11-23 00:24:08,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:24:08,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:24:08,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:24:08,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:24:08,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:24:08,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:08" (1/1) ... [2021-11-23 00:24:08,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20beaa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:08, skipping insertion in model container [2021-11-23 00:24:08,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:08" (1/1) ... [2021-11-23 00:24:08,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:24:08,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:24:08,985 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_a3971e8e-f704-461c-8f22-46da0c025296/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-23 00:24:09,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:24:09,030 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:24:09,043 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_a3971e8e-f704-461c-8f22-46da0c025296/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-23 00:24:09,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:24:09,068 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:24:09,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09 WrapperNode [2021-11-23 00:24:09,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:24:09,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:24:09,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:24:09,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:24:09,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,110 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2021-11-23 00:24:09,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:24:09,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:24:09,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:24:09,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:24:09,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:24:09,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:24:09,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:24:09,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:24:09,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:24:09,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:24:09,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:24:09,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:24:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:24:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:24:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:24:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:24:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:24:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:24:09,319 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:24:09,321 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:24:09,555 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:24:09,581 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:24:09,581 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:24:09,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:09 BoogieIcfgContainer [2021-11-23 00:24:09,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:24:09,584 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:24:09,585 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:24:09,595 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:24:09,595 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:09" (1/1) ... [2021-11-23 00:24:09,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:24:09,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2021-11-23 00:24:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2021-11-23 00:24:09,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:24:09,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:09,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2021-11-23 00:24:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2021-11-23 00:24:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:24:10,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:10,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2021-11-23 00:24:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2021-11-23 00:24:10,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:24:10,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:24:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2021-11-23 00:24:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2021-11-23 00:24:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:24:10,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:24:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2021-11-23 00:24:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2021-11-23 00:24:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:24:10,713 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:24:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2021-11-23 00:24:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-23 00:24:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:24:10,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:24:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2021-11-23 00:24:11,109 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2021-11-23 00:24:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:24:11,115 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:24:11,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2021-11-23 00:24:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2021-11-23 00:24:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:24:11,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:24:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2021-11-23 00:24:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2021-11-23 00:24:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:24:11,343 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:24:11,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2021-11-23 00:24:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2021-11-23 00:24:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:24:11,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:24:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2021-11-23 00:24:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2021-11-23 00:24:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:24:11,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:24:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2021-11-23 00:24:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2021-11-23 00:24:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:24:11,808 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:11,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:24:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:12,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2021-11-23 00:24:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2021-11-23 00:24:12,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 00:24:12,045 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:12,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-23 00:24:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2021-11-23 00:24:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2021-11-23 00:24:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 00:24:12,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:12,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:24:12,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2021-11-23 00:24:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2021-11-23 00:24:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:24:12,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:12,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-23 00:24:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2021-11-23 00:24:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2021-11-23 00:24:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:24:12,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:12,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:24:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2021-11-23 00:24:13,024 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2021-11-23 00:24:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 00:24:13,025 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:24:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2021-11-23 00:24:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2021-11-23 00:24:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 00:24:13,154 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:24:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2021-11-23 00:24:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2021-11-23 00:24:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 00:24:13,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,306 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-23 00:24:13,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2021-11-23 00:24:13,344 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2021-11-23 00:24:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 00:24:13,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-23 00:24:13,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2021-11-23 00:24:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2021-11-23 00:24:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 00:24:13,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 00:24:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2021-11-23 00:24:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2021-11-23 00:24:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 00:24:13,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 00:24:14,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2021-11-23 00:24:14,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2021-11-23 00:24:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 00:24:14,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:14,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 00:24:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2021-11-23 00:24:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-23 00:24:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 00:24:15,573 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:15,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 00:24:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2021-11-23 00:24:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2021-11-23 00:24:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 00:24:16,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:16,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-23 00:24:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2021-11-23 00:24:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2021-11-23 00:24:16,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 00:24:16,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:16,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-23 00:24:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2021-11-23 00:24:17,100 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2021-11-23 00:24:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 00:24:17,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:17,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-11-23 00:24:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2021-11-23 00:24:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2021-11-23 00:24:17,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 00:24:17,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:17,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 00:24:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2021-11-23 00:24:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2021-11-23 00:24:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 00:24:17,771 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:17,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 00:24:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2021-11-23 00:24:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2021-11-23 00:24:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 00:24:18,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:18,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:18,543 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 00:24:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2021-11-23 00:24:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2021-11-23 00:24:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 00:24:19,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:19,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 00:24:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2021-11-23 00:24:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2021-11-23 00:24:20,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:24:20,366 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2021-11-23 00:24:20,375 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:24:20,568 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:20,572 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:20,572 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:20,572 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:20,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:24:20 ImpRootNode [2021-11-23 00:24:20,573 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:24:20,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:24:20,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:24:20,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:24:20,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:09" (3/4) ... [2021-11-23 00:24:20,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:24:20,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 00:24:20,590 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 00:24:20,591 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 00:24:20,591 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:24:20,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:24:20,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:24:20,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:24:20,647 INFO L158 Benchmark]: Toolchain (without parser) took 11863.24ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.5MB in the beginning and 77.8MB in the end (delta: -10.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,647 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:20,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.89ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 79.2MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.87ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 77.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:20,648 INFO L158 Benchmark]: Boogie Preprocessor took 32.99ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,649 INFO L158 Benchmark]: RCFGBuilder took 439.05ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 64.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,649 INFO L158 Benchmark]: CodeCheck took 10988.49ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 64.2MB in the beginning and 82.0MB in the end (delta: -17.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,650 INFO L158 Benchmark]: Witness Printer took 72.35ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 77.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:20,652 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: 10.7s, 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, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 10.2s 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, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 14875 SyntacticMatches, 289 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s 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 0.31ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.89ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 79.2MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.87ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 77.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.99ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.05ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 64.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 10988.49ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 64.2MB in the beginning and 82.0MB in the end (delta: -17.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 72.35ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 77.8MB 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! [2021-11-23 00:24:20,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3971e8e-f704-461c-8f22-46da0c025296/bin/ukojak-LBtLqBUTdQ/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