./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test06.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_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/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_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/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_3bd22b7e-b7e9-4727-ba08-3bad40528542/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 7e4b751f1cff14576af7e2c8fb6f6f5af2d2fb8f159c6730e8a5d44ae1632f58 --- 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 16:39:48,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:39:48,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:39:48,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:39:48,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:39:48,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:39:48,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:39:48,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:39:48,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:39:48,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:39:48,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:39:48,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:39:48,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:39:48,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:39:48,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:39:48,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:39:48,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:39:48,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:39:48,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:39:48,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:39:48,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:39:48,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:39:48,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:39:48,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:39:48,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:39:48,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:39:48,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:39:48,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:39:48,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:39:48,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:39:48,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:39:48,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:39:48,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:39:48,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:39:48,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:39:48,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:39:48,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:39:48,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:39:48,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:39:48,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:39:48,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:39:48,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:39:48,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:39:48,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:39:48,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:39:48,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:39:48,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:39:48,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:39:48,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:39:48,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:39:48,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:39:48,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:39:48,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:39:48,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:39:48,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:39:48,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:39:48,354 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:39:48,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:39:48,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:39:48,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:39:48,355 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:39:48,356 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:39:48,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:39:48,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:48,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:39:48,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:39:48,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:39:48,358 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:39:48,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:39:48,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:39:48,360 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_3bd22b7e-b7e9-4727-ba08-3bad40528542/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4b751f1cff14576af7e2c8fb6f6f5af2d2fb8f159c6730e8a5d44ae1632f58 [2022-10-17 16:39:48,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:39:48,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:39:48,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:39:48,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:39:48,744 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:39:48,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-regression/test06.c [2022-10-17 16:39:48,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/data/89a162798/5c1beb517e9d4f7da6849ad9232559e4/FLAG49bae2cdc [2022-10-17 16:39:49,327 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:39:49,328 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/sv-benchmarks/c/ldv-regression/test06.c [2022-10-17 16:39:49,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/data/89a162798/5c1beb517e9d4f7da6849ad9232559e4/FLAG49bae2cdc [2022-10-17 16:39:49,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/data/89a162798/5c1beb517e9d4f7da6849ad9232559e4 [2022-10-17 16:39:49,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:39:49,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:39:49,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:49,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:39:49,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:39:49,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:49" (1/1) ... [2022-10-17 16:39:49,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419c43f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:49, skipping insertion in model container [2022-10-17 16:39:49,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:49" (1/1) ... [2022-10-17 16:39:49,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:39:49,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:39:49,987 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_3bd22b7e-b7e9-4727-ba08-3bad40528542/sv-benchmarks/c/ldv-regression/test06.c[670,683] [2022-10-17 16:39:49,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:50,003 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:39:50,028 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_3bd22b7e-b7e9-4727-ba08-3bad40528542/sv-benchmarks/c/ldv-regression/test06.c[670,683] [2022-10-17 16:39:50,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:50,051 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:39:50,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50 WrapperNode [2022-10-17 16:39:50,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:50,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:50,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:39:50,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:39:50,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,112 INFO L138 Inliner]: procedures = 16, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 86 [2022-10-17 16:39:50,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:50,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:39:50,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:39:50,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:39:50,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:39:50,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:39:50,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:39:50,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:39:50,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:39:50,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:39:50,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:39:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:39:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:39:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:39:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:39:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:39:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:39:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:39:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:39:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:39:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:39:50,315 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:39:50,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:39:50,611 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:39:50,738 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:39:50,739 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:39:50,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:50 BoogieIcfgContainer [2022-10-17 16:39:50,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:39:50,742 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:39:50,742 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:39:50,757 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:39:50,757 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:50" (1/1) ... [2022-10-17 16:39:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:39:50,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-10-17 16:39:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-10-17 16:39:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:39:50,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:50,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:39:51,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:39:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:39:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:39:51,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:39:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:39:51,694 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-10-17 16:39:51,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:39:51 ImpRootNode [2022-10-17 16:39:51,733 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:39:51,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:39:51,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:39:51,737 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:39:51,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:50" (3/4) ... [2022-10-17 16:39:51,739 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:39:51,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:39:51,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:39:51,809 INFO L158 Benchmark]: Toolchain (without parser) took 2092.45ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 68.3MB in the beginning and 90.2MB in the end (delta: -21.9MB). Peak memory consumption was 670.4kB. Max. memory is 16.1GB. [2022-10-17 16:39:51,809 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 73.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:39:51,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.93ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 78.3MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:39:51,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.36ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:51,813 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 75.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:51,813 INFO L158 Benchmark]: RCFGBuilder took 602.85ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 51.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:51,814 INFO L158 Benchmark]: CodeCheck took 990.57ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 51.6MB in the beginning and 92.3MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:39:51,814 INFO L158 Benchmark]: Witness Printer took 72.48ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:51,822 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: 0.9s, 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, 0.1s 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: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int a, b; [L24] int *p1, *p2; [L26] p1 = &a [L27] p2 = &b [L29] b = 1 [L30] a = 5 [L32] EXPR \read(a) [L32] a-- [L34] EXPR \read(a) [L34] CALL, EXPR f(a, &p1, &p2) [L14] COND TRUE a == 4 [L15] CALL g(p1, p2) [L7] EXPR \read(**p2) [L7] int *pq = *p2; [L9] EXPR \read(**p2) [L9] *p1 = *p2 [L10] *pq = 0 [L15] RET g(p1, p2) [L16] return 1; [L34] RET, EXPR f(a, &p1, &p2) [L34] a = f(a, &p1, &p2) [L36] EXPR \read(*p1) VAL [\read(*p1)=0, \read(*p1)={20542:0}, a={20541:0}, b={20542:0}, p1={20540:0}, p2={20539:0}] [L36] COND TRUE *p1 == 0 [L42] reach_error() VAL [a={20541:0}, b={20542:0}, p1={20540:0}, p2={20539:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 73.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.93ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 78.3MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.36ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 75.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.85ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 51.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 990.57ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 51.6MB in the beginning and 92.3MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.48ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:39:51,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd22b7e-b7e9-4727-ba08-3bad40528542/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