./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB --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 ca20d2ad08bf0f7fa23e269f0ee97814132c0c2a0f348f398575419f579ef49b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:41:08,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:41:08,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:41:08,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:41:08,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:41:08,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:41:08,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:41:08,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:41:08,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:41:08,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:41:08,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:41:08,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:41:08,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:41:08,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:41:08,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:41:08,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:41:08,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:41:08,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:41:08,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:41:08,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:41:08,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:41:08,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:41:08,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:41:08,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:41:08,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:41:08,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:41:08,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:41:08,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:41:08,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:41:08,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:41:08,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:41:08,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:41:08,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:41:08,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:41:08,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:41:08,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:41:08,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:41:08,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:41:08,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:41:08,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:41:08,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:41:08,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:41:08,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:41:08,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:41:08,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:41:08,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:41:08,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:41:08,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:41:08,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:41:08,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:41:08,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:41:08,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:41:08,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:41:08,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:41:08,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:41:08,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:41:08,352 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:41:08,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:41:08,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:41:08,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:41:08,352 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:41:08,353 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:41:08,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:41:08,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:08,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:41:08,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:41:08,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:41:08,354 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:41:08,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:41:08,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:41:08,355 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_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca20d2ad08bf0f7fa23e269f0ee97814132c0c2a0f348f398575419f579ef49b [2022-10-17 16:41:08,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:41:08,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:41:08,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:41:08,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:41:08,672 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:41:08,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-acceleration/simple_2-2.c [2022-10-17 16:41:08,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/data/eecf8b97b/ae992e4a8bdc4e4595d426599c016e7b/FLAG5a4747e54 [2022-10-17 16:41:09,337 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:41:09,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/sv-benchmarks/c/loop-acceleration/simple_2-2.c [2022-10-17 16:41:09,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/data/eecf8b97b/ae992e4a8bdc4e4595d426599c016e7b/FLAG5a4747e54 [2022-10-17 16:41:09,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/data/eecf8b97b/ae992e4a8bdc4e4595d426599c016e7b [2022-10-17 16:41:09,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:41:09,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:41:09,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:09,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:41:09,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:41:09,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:09" (1/1) ... [2022-10-17 16:41:09,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5909a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:09, skipping insertion in model container [2022-10-17 16:41:09,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:09" (1/1) ... [2022-10-17 16:41:09,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:41:09,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:41:09,976 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_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/sv-benchmarks/c/loop-acceleration/simple_2-2.c[372,385] [2022-10-17 16:41:09,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:10,000 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:41:10,013 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_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/sv-benchmarks/c/loop-acceleration/simple_2-2.c[372,385] [2022-10-17 16:41:10,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:10,029 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:41:10,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10 WrapperNode [2022-10-17 16:41:10,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:10,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:10,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:41:10,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:41:10,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,065 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2022-10-17 16:41:10,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:10,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:41:10,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:41:10,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:41:10,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:41:10,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:41:10,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:41:10,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:41:10,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:10,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:41:10,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:41:10,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:41:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:41:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:41:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:41:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:41:10,254 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:41:10,257 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:41:10,415 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:41:10,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:41:10,465 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:41:10,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:10 BoogieIcfgContainer [2022-10-17 16:41:10,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:41:10,472 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:41:10,472 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:41:10,483 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:41:10,483 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:10" (1/1) ... [2022-10-17 16:41:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:41:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-10-17 16:41:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-10-17 16:41:10,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:41:10,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:10,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:41:10,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:41:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:41:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:41:10,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:41:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:41:10,827 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-10-17 16:41:10,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:41:10 ImpRootNode [2022-10-17 16:41:10,849 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:41:10,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:41:10,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:41:10,850 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:41:10,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:10" (3/4) ... [2022-10-17 16:41:10,853 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:41:10,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:41:10,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:41:10,889 INFO L158 Benchmark]: Toolchain (without parser) took 1183.09ms. Allocated memory is still 102.8MB. Free memory was 63.8MB in the beginning and 53.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,889 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:41:10,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.59ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 78.8MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.99ms. Allocated memory is still 102.8MB. Free memory was 78.8MB in the beginning and 77.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,892 INFO L158 Benchmark]: Boogie Preprocessor took 21.30ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:41:10,892 INFO L158 Benchmark]: RCFGBuilder took 382.04ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 66.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,893 INFO L158 Benchmark]: CodeCheck took 377.65ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 55.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,894 INFO L158 Benchmark]: Witness Printer took 37.80ms. Allocated memory is still 102.8MB. Free memory was 55.5MB in the beginning and 53.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:41:10,898 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = __VERIFIER_nondet_uint(); [L16] COND FALSE !(x < 0x0fffffff) [L20] CALL __VERIFIER_assert(x > 0x0fffffff) [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.59ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 78.8MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.99ms. Allocated memory is still 102.8MB. Free memory was 78.8MB in the beginning and 77.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.30ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.04ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 66.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 377.65ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 55.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 37.80ms. Allocated memory is still 102.8MB. Free memory was 55.5MB in the beginning and 53.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:41:10,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9987141e-7bfb-4cda-9942-f4e8e4a49b4c/bin/ukojak-92XMlrwhuB/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE