./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0816346248b67d4ea9c17aaea510056f7cd51786d8081f1e3a68c606118ae1c9 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:30:46,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:30:46,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:30:46,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:30:46,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:30:46,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:30:46,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:30:46,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:30:46,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:30:46,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:30:46,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:30:46,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:30:46,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:30:46,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:30:46,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:30:46,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:30:46,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:30:46,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:30:46,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:30:46,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:30:46,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:30:46,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:30:46,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:30:46,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:30:46,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:30:46,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:30:46,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:30:46,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:30:46,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:30:46,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:30:46,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:30:46,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:30:46,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:30:46,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:30:46,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:30:46,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:30:46,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:30:46,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:30:46,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:30:46,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:30:46,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:30:46,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:30:46,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:30:46,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:30:46,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:30:46,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:30:46,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:30:46,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:30:46,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:30:46,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:30:46,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:30:46,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:30:46,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:30:46,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:30:46,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:30:46,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:30:46,315 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:30:46,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:30:46,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:30:46,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:30:46,316 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:30:46,317 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:30:46,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:30:46,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:30:46,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:30:46,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:30:46,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:30:46,318 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:30:46,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:30:46,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:30:46,319 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_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0816346248b67d4ea9c17aaea510056f7cd51786d8081f1e3a68c606118ae1c9 [2021-10-29 04:30:46,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:30:46,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:30:46,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:30:46,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:30:46,634 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:30:46,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2021-10-29 04:30:46,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/data/101634e42/7d8efd66c6a04c29874d1b0cdb4e30f2/FLAG2a09ae809 [2021-10-29 04:30:47,219 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:30:47,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2021-10-29 04:30:47,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/data/101634e42/7d8efd66c6a04c29874d1b0cdb4e30f2/FLAG2a09ae809 [2021-10-29 04:30:47,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/data/101634e42/7d8efd66c6a04c29874d1b0cdb4e30f2 [2021-10-29 04:30:47,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:30:47,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:30:47,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:30:47,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:30:47,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:30:47,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184d02a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47, skipping insertion in model container [2021-10-29 04:30:47,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:30:47,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:30:47,826 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2021-10-29 04:30:47,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:30:47,856 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:30:47,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2021-10-29 04:30:47,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:30:47,891 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:30:47,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47 WrapperNode [2021-10-29 04:30:47,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:30:47,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:30:47,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:30:47,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:30:47,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:30:47,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:30:47,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:30:47,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:30:47,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:30:47,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:30:47,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:30:47,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:30:47,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:47" (1/1) ... [2021-10-29 04:30:47,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:30:48,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:30:48,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:30:48,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:30:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:30:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:30:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:30:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:30:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:30:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:30:48,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:30:48,351 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:30:48,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:48 BoogieIcfgContainer [2021-10-29 04:30:48,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:30:48,355 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:30:48,355 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:30:48,368 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:30:48,368 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:48" (1/1) ... [2021-10-29 04:30:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:30:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2021-10-29 04:30:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2021-10-29 04:30:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:30:48,422 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:48,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:30:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2021-10-29 04:30:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2021-10-29 04:30:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:30:48,785 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:48,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:30:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2021-10-29 04:30:49,265 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-10-29 04:30:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:30:49,267 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:49,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:30:49,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2021-10-29 04:30:49,529 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2021-10-29 04:30:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:30:49,531 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:49,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 04:30:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 37 states and 73 transitions. [2021-10-29 04:30:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 73 transitions. [2021-10-29 04:30:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-29 04:30:50,760 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:50,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 04:30:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 40 states and 83 transitions. [2021-10-29 04:30:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 83 transitions. [2021-10-29 04:30:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 04:30:51,352 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:51,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-29 04:30:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 44 states and 93 transitions. [2021-10-29 04:30:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 93 transitions. [2021-10-29 04:30:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 04:30:52,022 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:52,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-29 04:30:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 26 states and 47 transitions. [2021-10-29 04:30:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2021-10-29 04:30:52,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:30:52,345 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 04:30:52,354 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:30:52,419 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:30:52,424 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:30:52,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:30:52 ImpRootNode [2021-10-29 04:30:52,424 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:30:52,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:30:52,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:30:52,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:30:52,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:48" (3/4) ... [2021-10-29 04:30:52,432 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:30:52,442 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:30:52,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 04:30:52,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 04:30:52,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:30:52,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:30:52,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:30:52,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:30:52,502 INFO L168 Benchmark]: Toolchain (without parser) took 4900.74 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 77.1 MB in the beginning and 92.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:30:52,502 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 62.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:30:52,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.64 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 76.8 MB in the beginning and 107.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:30:52,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.46 ms. Allocated memory is still 132.1 MB. Free memory was 107.1 MB in the beginning and 105.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:30:52,504 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 104.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:30:52,505 INFO L168 Benchmark]: RCFGBuilder took 374.59 ms. Allocated memory is still 132.1 MB. Free memory was 104.6 MB in the beginning and 93.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:30:52,505 INFO L168 Benchmark]: CodeCheck took 4069.50 ms. Allocated memory is still 132.1 MB. Free memory was 92.5 MB in the beginning and 95.9 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:30:52,506 INFO L168 Benchmark]: Witness Printer took 75.04 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 92.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:30:52,509 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2368 SDtfs, 728 SDslu, 512 SDs, 0 SdLazy, 4758 SolverSat, 1290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1661 GetRequests, 1543 SyntacticMatches, 38 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 172/193 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 62.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.64 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 76.8 MB in the beginning and 107.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.46 ms. Allocated memory is still 132.1 MB. Free memory was 107.1 MB in the beginning and 105.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 104.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.59 ms. Allocated memory is still 132.1 MB. Free memory was 104.6 MB in the beginning and 93.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 4069.50 ms. Allocated memory is still 132.1 MB. Free memory was 92.5 MB in the beginning and 95.9 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 75.04 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 92.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 04:30:52,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8616ce10-57ec-4029-8f3c-538a959af3a8/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...