./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/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_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/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_1263feac-76fd-4f31-bc96-18e6b49abffd/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 d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:26:11,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:26:11,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:26:11,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:26:11,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:26:11,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:26:11,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:26:11,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:26:11,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:26:11,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:26:11,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:26:11,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:26:11,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:26:11,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:26:11,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:26:11,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:26:11,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:26:11,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:26:11,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:26:11,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:26:11,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:26:11,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:26:11,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:26:11,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:26:11,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:26:11,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:26:11,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:26:11,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:26:11,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:26:11,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:26:11,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:26:11,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:26:11,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:26:11,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:26:11,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:26:11,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:26:11,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:26:11,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:26:11,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:26:11,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:26:11,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:26:11,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:26:11,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:26:11,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:26:11,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:26:11,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:26:11,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:26:11,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:26:11,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:26:11,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:26:11,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:26:11,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:26:11,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:26:11,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:26:11,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:26:11,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:26:11,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:26:11,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:26:11,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:26:11,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:26:11,276 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:26:11,276 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:26:11,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:26:11,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:26:11,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:26:11,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:26:11,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:26:11,278 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:26:11,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:26:11,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:26:11,278 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_1263feac-76fd-4f31-bc96-18e6b49abffd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e [2021-10-29 04:26:11,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:26:11,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:26:11,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:26:11,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:26:11,547 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:26:11,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-regression/test28-1.c [2021-10-29 04:26:11,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/data/99d6137a1/b1d6693b5aa94be8ae54dc89b4d78a71/FLAGd7e8f1dd8 [2021-10-29 04:26:12,167 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:26:12,169 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/sv-benchmarks/c/ldv-regression/test28-1.c [2021-10-29 04:26:12,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/data/99d6137a1/b1d6693b5aa94be8ae54dc89b4d78a71/FLAGd7e8f1dd8 [2021-10-29 04:26:12,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/data/99d6137a1/b1d6693b5aa94be8ae54dc89b4d78a71 [2021-10-29 04:26:12,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:26:12,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:26:12,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:26:12,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:26:12,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:26:12,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cc0b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12, skipping insertion in model container [2021-10-29 04:26:12,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:26:12,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:26:12,735 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_1263feac-76fd-4f31-bc96-18e6b49abffd/sv-benchmarks/c/ldv-regression/test28-1.c[613,626] [2021-10-29 04:26:12,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:26:12,753 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:26:12,765 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_1263feac-76fd-4f31-bc96-18e6b49abffd/sv-benchmarks/c/ldv-regression/test28-1.c[613,626] [2021-10-29 04:26:12,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:26:12,777 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:26:12,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12 WrapperNode [2021-10-29 04:26:12,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:26:12,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:26:12,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:26:12,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:26:12,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:26:12,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:26:12,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:26:12,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:26:12,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:26:12,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:26:12,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:26:12,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:26:12,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:26:12" (1/1) ... [2021-10-29 04:26:12,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:26:12,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:26:12,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:26:12,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:26:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:26:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:26:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:26:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:26:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:26:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:26:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:26:13,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:26:13,489 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 04:26:13,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:26:13 BoogieIcfgContainer [2021-10-29 04:26:13,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:26:13,493 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:26:13,494 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:26:13,511 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:26:13,512 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:26:13" (1/1) ... [2021-10-29 04:26:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:26:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:26:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-10-29 04:26:13,583 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-10-29 04:26:13,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:26:13,586 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:26:13,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:26:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:26:13,757 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:26:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:26:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:26:13,862 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:26:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:26:13,900 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-29 04:26:13,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:26:13 ImpRootNode [2021-10-29 04:26:13,934 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:26:13,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:26:13,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:26:13,935 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:26:13,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:26:13" (3/4) ... [2021-10-29 04:26:13,940 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:26:13,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:26:13,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:26:13,982 INFO L168 Benchmark]: Toolchain (without parser) took 1446.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 63.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,983 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:26:13,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.13 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 99.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 123.7 MB. Free memory was 99.5 MB in the beginning and 98.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,985 INFO L168 Benchmark]: Boogie Preprocessor took 23.79 ms. Allocated memory is still 123.7 MB. Free memory was 98.0 MB in the beginning and 96.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:26:13,985 INFO L168 Benchmark]: RCFGBuilder took 651.90 ms. Allocated memory is still 123.7 MB. Free memory was 96.7 MB in the beginning and 79.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,986 INFO L168 Benchmark]: CodeCheck took 440.97 ms. Allocated memory is still 123.7 MB. Free memory was 79.1 MB in the beginning and 65.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,987 INFO L168 Benchmark]: Witness Printer took 44.98 ms. Allocated memory is still 123.7 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:26:13,991 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, 6 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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, 3 NumberOfCodeBlocks, 3 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: 29]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] struct dummy d1, d2; [L15] int n = __VERIFIER_nondet_int(); [L16] EXPR n ? &d1 : &d2 [L16] struct dummy *pd = n ? &d1 : &d2; [L17] COND TRUE pd == &d2 [L18] pd->a = 0 [L19] pd->b = __VERIFIER_nondet_int() [L23] pd == &d2 && d2.b != 0 [L23] EXPR d2.b [L23] pd == &d2 && d2.b != 0 [L23] COND TRUE pd == &d2 && d2.b != 0 [L29] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.13 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 99.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 123.7 MB. Free memory was 99.5 MB in the beginning and 98.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.79 ms. Allocated memory is still 123.7 MB. Free memory was 98.0 MB in the beginning and 96.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 651.90 ms. Allocated memory is still 123.7 MB. Free memory was 96.7 MB in the beginning and 79.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 440.97 ms. Allocated memory is still 123.7 MB. Free memory was 79.1 MB in the beginning and 65.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 44.98 ms. Allocated memory is still 123.7 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:26:14,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1263feac-76fd-4f31-bc96-18e6b49abffd/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...