./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.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_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/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_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/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_74878c57-efb9-43e0-95c9-93487f53364f/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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- 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 16:36:49,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:36:49,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:36:49,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:36:49,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:36:49,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:36:49,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:36:49,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:36:49,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:36:49,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:36:49,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:36:49,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:36:49,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:36:49,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:36:49,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:36:49,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:36:49,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:36:49,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:36:49,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:36:49,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:36:49,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:36:49,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:36:49,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:36:49,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:36:49,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:36:49,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:36:49,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:36:49,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:36:49,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:36:49,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:36:49,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:36:49,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:36:49,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:36:49,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:36:49,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:36:49,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:36:49,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:36:49,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:36:49,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:36:49,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:36:49,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:36:49,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:36:49,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:36:49,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:36:49,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:36:49,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:36:49,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:36:49,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:36:49,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:36:49,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:36:49,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:36:49,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:36:49,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:36:49,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:36:49,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:36:49,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:36:49,272 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:36:49,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:36:49,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:36:49,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:36:49,273 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:36:49,273 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:36:49,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:36:49,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:49,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:36:49,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:36:49,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:36:49,275 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:36:49,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:36:49,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:36:49,276 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_74878c57-efb9-43e0-95c9-93487f53364f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2022-10-17 16:36:49,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:36:49,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:36:49,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:36:49,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:36:49,537 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:36:49,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-10-17 16:36:49,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/data/dd0ccb06d/edb01bd2cba04fe8ba6e7fd8d51feffe/FLAG9c5b274d8 [2022-10-17 16:36:50,109 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:36:50,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-10-17 16:36:50,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/data/dd0ccb06d/edb01bd2cba04fe8ba6e7fd8d51feffe/FLAG9c5b274d8 [2022-10-17 16:36:50,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/data/dd0ccb06d/edb01bd2cba04fe8ba6e7fd8d51feffe [2022-10-17 16:36:50,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:36:50,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:36:50,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:50,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:36:50,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:36:50,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68dc0f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50, skipping insertion in model container [2022-10-17 16:36:50,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:36:50,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:36:50,741 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_74878c57-efb9-43e0-95c9-93487f53364f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-10-17 16:36:50,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:50,775 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:36:50,788 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_74878c57-efb9-43e0-95c9-93487f53364f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-10-17 16:36:50,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:50,812 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:36:50,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50 WrapperNode [2022-10-17 16:36:50,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:50,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:50,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:36:50,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:36:50,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,851 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-10-17 16:36:50,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:50,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:36:50,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:36:50,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:36:50,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:36:50,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:36:50,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:36:50,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:36:50,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:50" (1/1) ... [2022-10-17 16:36:50,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:50,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:36:50,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:36:50,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:36:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:36:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure check [2022-10-17 16:36:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2022-10-17 16:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:36:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:36:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:36:51,044 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:36:51,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:36:51,303 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:36:51,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:36:51,379 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:36:51,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:51 BoogieIcfgContainer [2022-10-17 16:36:51,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:36:51,383 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:36:51,383 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:36:51,396 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:36:51,396 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:51" (1/1) ... [2022-10-17 16:36:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:36:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2022-10-17 16:36:51,510 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-10-17 16:36:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:36:51,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:36:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2022-10-17 16:36:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-10-17 16:36:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:36:52,303 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:36:52,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 43 transitions. [2022-10-17 16:36:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-10-17 16:36:52,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:36:52,807 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:52,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:36:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 59 transitions. [2022-10-17 16:36:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2022-10-17 16:36:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 16:36:53,980 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:36:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 74 transitions. [2022-10-17 16:36:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2022-10-17 16:36:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 16:36:54,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:54,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:36:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:56,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 55 states and 83 transitions. [2022-10-17 16:36:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2022-10-17 16:36:56,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 16:36:56,194 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:56,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 16:36:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:56,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 32 states and 40 transitions. [2022-10-17 16:36:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-10-17 16:36:56,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:36:56,741 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-10-17 16:36:56,753 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:36:56,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:56,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:36:56 ImpRootNode [2022-10-17 16:36:56,822 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:36:56,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:36:56,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:36:56,824 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:36:56,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:51" (3/4) ... [2022-10-17 16:36:56,828 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:36:56,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-10-17 16:36:56,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2022-10-17 16:36:56,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:36:56,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-10-17 16:36:56,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-10-17 16:36:56,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 16:36:56,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:36:56,917 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:36:56,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:36:56,923 INFO L158 Benchmark]: Toolchain (without parser) took 6420.68ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.7MB in the beginning and 66.2MB in the end (delta: 21.5MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,924 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:56,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.08ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 93.2MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.81ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,924 INFO L158 Benchmark]: Boogie Preprocessor took 27.16ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 90.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:56,925 INFO L158 Benchmark]: RCFGBuilder took 502.04ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 75.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,925 INFO L158 Benchmark]: CodeCheck took 5439.39ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 75.3MB in the beginning and 69.3MB in the end (delta: 6.0MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,925 INFO L158 Benchmark]: Witness Printer took 94.23ms. Allocated memory is still 146.8MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:36:56,927 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 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 183 mSDtfsCounter, 613 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1332 GetRequests, 1259 SyntacticMatches, 15 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 66/87 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.08ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 93.2MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.81ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.16ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 90.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.04ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 75.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5439.39ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 75.3MB in the beginning and 69.3MB in the end (delta: 6.0MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Witness Printer took 94.23ms. Allocated memory is still 146.8MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:36:56,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74878c57-efb9-43e0-95c9-93487f53364f/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE