./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/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_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- 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 16:45:43,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:45:43,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:45:43,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:45:43,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:45:43,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:45:43,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:45:43,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:45:43,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:45:43,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:45:43,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:45:43,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:45:43,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:45:43,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:45:43,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:45:43,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:45:43,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:45:43,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:45:43,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:45:43,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:45:43,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:45:43,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:45:43,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:45:43,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:45:43,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:45:43,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:45:43,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:45:43,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:45:43,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:45:43,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:45:43,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:45:43,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:45:43,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:45:43,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:45:43,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:45:43,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:45:43,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:45:43,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:45:43,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:45:43,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:45:43,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:45:43,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:45:43,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:45:43,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:45:43,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:45:43,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:45:43,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:45:43,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:45:43,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:45:43,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:45:43,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:45:43,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:45:43,274 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:45:43,274 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:45:43,275 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:45:43,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:45:43,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:45:43,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:45:43,276 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:45:43,276 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:45:43,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:45:43,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:43,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:45:43,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:45:43,277 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:45:43,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:45:43,277 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_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2022-10-17 16:45:43,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:45:43,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:45:43,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:45:43,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:45:43,584 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:45:43,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2022-10-17 16:45:43,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/data/f310a60ec/cc59448ac2114cdf922b81eda4c4280a/FLAGe29a7d3b0 [2022-10-17 16:45:44,276 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:45:44,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2022-10-17 16:45:44,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/data/f310a60ec/cc59448ac2114cdf922b81eda4c4280a/FLAGe29a7d3b0 [2022-10-17 16:45:44,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/data/f310a60ec/cc59448ac2114cdf922b81eda4c4280a [2022-10-17 16:45:44,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:45:44,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:45:44,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:44,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:45:44,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:45:44,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:44" (1/1) ... [2022-10-17 16:45:44,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8c166a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:44, skipping insertion in model container [2022-10-17 16:45:44,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:44" (1/1) ... [2022-10-17 16:45:44,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:45:44,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:45:44,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:45,005 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:45:45,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:45,107 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:45:45,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45 WrapperNode [2022-10-17 16:45:45,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:45,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:45,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:45:45,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:45:45,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,193 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-10-17 16:45:45,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:45,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:45:45,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:45:45,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:45:45,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:45:45,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:45:45,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:45:45,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:45:45,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:45" (1/1) ... [2022-10-17 16:45:45,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:45,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:45:45,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:45:45,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:45:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:45:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:45:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:45:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:45:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:45:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:45:45,562 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:45:45,564 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:45:45,977 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:45:46,086 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:45:46,086 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 16:45:46,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:46 BoogieIcfgContainer [2022-10-17 16:45:46,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:45:46,097 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:45:46,098 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:45:46,111 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:45:46,111 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:46" (1/1) ... [2022-10-17 16:45:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:45:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2022-10-17 16:45:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-10-17 16:45:46,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:45:46,201 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:46,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:46,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2022-10-17 16:45:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-10-17 16:45:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:45:46,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:46,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:47,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 62 states and 73 transitions. [2022-10-17 16:45:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2022-10-17 16:45:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:45:47,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 64 states and 77 transitions. [2022-10-17 16:45:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2022-10-17 16:45:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:45:47,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:47,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 67 states and 85 transitions. [2022-10-17 16:45:48,772 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2022-10-17 16:45:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:45:48,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:48,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 68 states and 89 transitions. [2022-10-17 16:45:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2022-10-17 16:45:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:45:48,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:48,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:49,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 69 states and 92 transitions. [2022-10-17 16:45:49,221 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2022-10-17 16:45:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:45:49,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2022-10-17 16:45:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2022-10-17 16:45:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:45:49,596 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:49,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 72 states and 99 transitions. [2022-10-17 16:45:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2022-10-17 16:45:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:45:49,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 76 states and 109 transitions. [2022-10-17 16:45:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 109 transitions. [2022-10-17 16:45:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:45:51,299 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:51,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 80 states and 120 transitions. [2022-10-17 16:45:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2022-10-17 16:45:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:45:52,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:52,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 81 states and 121 transitions. [2022-10-17 16:45:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 121 transitions. [2022-10-17 16:45:52,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:45:52,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 86 states and 139 transitions. [2022-10-17 16:45:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 139 transitions. [2022-10-17 16:45:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:45:54,766 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:54,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 91 states and 148 transitions. [2022-10-17 16:45:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 148 transitions. [2022-10-17 16:45:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:55,637 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 93 states and 158 transitions. [2022-10-17 16:45:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 158 transitions. [2022-10-17 16:45:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:56,340 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:56,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 96 states and 166 transitions. [2022-10-17 16:45:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 166 transitions. [2022-10-17 16:45:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:56,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:56,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 99 states and 172 transitions. [2022-10-17 16:45:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 172 transitions. [2022-10-17 16:45:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:58,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 105 states and 187 transitions. [2022-10-17 16:45:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 187 transitions. [2022-10-17 16:45:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:45:59,699 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:59,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 16:46:00,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 105 states and 186 transitions. [2022-10-17 16:46:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 186 transitions. [2022-10-17 16:46:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:00,044 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:00,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 110 states and 195 transitions. [2022-10-17 16:46:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 195 transitions. [2022-10-17 16:46:02,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:02,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:02,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 117 states and 211 transitions. [2022-10-17 16:46:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 211 transitions. [2022-10-17 16:46:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:05,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 122 states and 218 transitions. [2022-10-17 16:46:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 218 transitions. [2022-10-17 16:46:08,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:08,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:08,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 121 states and 217 transitions. [2022-10-17 16:46:08,333 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 217 transitions. [2022-10-17 16:46:08,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:08,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:08,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:46:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 123 states and 220 transitions. [2022-10-17 16:46:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 220 transitions. [2022-10-17 16:46:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:08,401 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:11,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:11,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 131 states and 236 transitions. [2022-10-17 16:46:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 236 transitions. [2022-10-17 16:46:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:46:11,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:11,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:11,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:11,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:11,685 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2022-10-17 16:46:11,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:11 ImpRootNode [2022-10-17 16:46:11,749 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:11,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:11,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:11,750 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:11,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:46" (3/4) ... [2022-10-17 16:46:11,752 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:11,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:11,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:11,806 INFO L158 Benchmark]: Toolchain (without parser) took 27195.05ms. Allocated memory was 109.1MB in the beginning and 299.9MB in the end (delta: 190.8MB). Free memory was 68.2MB in the beginning and 145.2MB in the end (delta: -77.0MB). Peak memory consumption was 116.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,808 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:11,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.77ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 52.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.75ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 52.2MB in the beginning and 119.5MB in the end (delta: -67.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,812 INFO L158 Benchmark]: Boogie Preprocessor took 76.38ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:11,813 INFO L158 Benchmark]: RCFGBuilder took 822.01ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.0MB in the end (delta: 18.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,814 INFO L158 Benchmark]: CodeCheck took 25652.31ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 99.0MB in the beginning and 148.3MB in the end (delta: -49.3MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,814 INFO L158 Benchmark]: Witness Printer took 54.69ms. Allocated memory is still 299.9MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:11,817 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, 58 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1421 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1063 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 1546 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6957 IncrementalHoareTripleChecker+Invalid, 8503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1546 mSolverCounterUnsat, 221 mSDtfsCounter, 6957 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1801 GetRequests, 1461 SyntacticMatches, 18 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49685 ImplicationChecksByTransitivity, 21.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 16/38 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) [L535] CALL lis(a, N) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=0, max=0, N=2, prev={-2:0}] [L517] COND TRUE i < N VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=0, max=0, N=2, prev={-2:0}] [L518] best[i] = 1 VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=0, max=0, N=2, prev={-2:0}] [L518] prev[i] = i [L517] i++ VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, max=0, N=2, prev={-2:0}] [L517] COND TRUE i < N VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, max=0, N=2, prev={-2:0}] [L518] best[i] = 1 VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, max=0, N=2, prev={-2:0}] [L518] prev[i] = i [L517] i++ VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=2, max=0, N=2, prev={-2:0}] [L517] COND FALSE !(i < N) [L519] i = 1 VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, max=0, N=2, prev={-2:0}] [L519] COND TRUE i < N [L520] j = 0 VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, j=0, max=0, N=2, prev={-2:0}] [L520] COND TRUE j < i VAL [\old(N)=2, a={5:-5}, a={5:-5}, best={-1:0}, i=1, j=0, max=0, N=2, prev={-2:0}] [L521] a[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.77ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 52.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.75ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 52.2MB in the beginning and 119.5MB in the end (delta: -67.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.38ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 822.01ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.0MB in the end (delta: 18.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 25652.31ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 99.0MB in the beginning and 148.3MB in the end (delta: -49.3MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. * Witness Printer took 54.69ms. Allocated memory is still 299.9MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:11,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ca6ae0-ae4d-45f1-b1ba-b095589a2ca6/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(valid-deref)