./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.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_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/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_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/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_e0488a5a-faab-4582-a798-2f1fa61abc9e/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 bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- 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 16:50:45,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:50:45,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:50:45,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:50:45,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:50:45,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:50:45,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:50:45,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:50:45,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:50:45,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:50:45,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:50:45,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:50:45,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:50:45,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:50:45,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:50:45,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:50:45,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:50:45,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:50:45,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:50:45,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:50:45,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:50:45,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:50:45,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:50:45,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:50:45,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:50:45,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:50:45,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:50:45,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:50:45,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:50:45,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:50:45,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:50:45,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:50:45,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:50:45,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:50:45,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:50:45,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:50:45,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:50:45,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:50:45,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:50:45,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:50:45,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:50:45,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:50:45,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:50:45,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:50:45,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:50:45,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:50:45,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:50:45,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:50:45,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:50:45,463 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:50:45,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:50:45,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:50:45,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:50:45,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:50:45,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:50:45,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:50:45,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:50:45,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:50:45,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:50:45,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:50:45,467 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:50:45,467 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:50:45,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:50:45,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:45,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:50:45,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:50:45,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:50:45,477 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:50:45,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:50:45,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:50:45,478 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_e0488a5a-faab-4582-a798-2f1fa61abc9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2022-10-17 16:50:45,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:50:45,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:50:45,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:50:45,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:50:45,797 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:50:45,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-10-17 16:50:45,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/data/c334459a6/e32609f8c8b4435eafecded8ad7459e8/FLAG4f41f0fcf [2022-10-17 16:50:46,367 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:50:46,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-10-17 16:50:46,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/data/c334459a6/e32609f8c8b4435eafecded8ad7459e8/FLAG4f41f0fcf [2022-10-17 16:50:46,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/data/c334459a6/e32609f8c8b4435eafecded8ad7459e8 [2022-10-17 16:50:46,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:50:46,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:50:46,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:46,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:50:46,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:50:46,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:46" (1/1) ... [2022-10-17 16:50:46,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4072355c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:46, skipping insertion in model container [2022-10-17 16:50:46,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:46" (1/1) ... [2022-10-17 16:50:46,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:50:46,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:50:47,042 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_e0488a5a-faab-4582-a798-2f1fa61abc9e/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2022-10-17 16:50:47,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:47,057 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:50:47,075 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_e0488a5a-faab-4582-a798-2f1fa61abc9e/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2022-10-17 16:50:47,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:47,090 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:50:47,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47 WrapperNode [2022-10-17 16:50:47,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:47,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:47,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:50:47,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:50:47,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,121 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-17 16:50:47,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:47,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:50:47,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:50:47,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:50:47,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,140 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:50:47,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:50:47,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:50:47,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:50:47,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:50:47,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:50:47,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:50:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:50:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:50:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2022-10-17 16:50:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2022-10-17 16:50:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:50:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:50:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-17 16:50:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-17 16:50:47,338 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:50:47,340 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:50:47,458 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:50:47,492 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:50:47,493 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:50:47,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:47 BoogieIcfgContainer [2022-10-17 16:50:47,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:50:47,497 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:50:47,497 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:50:47,514 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:50:47,514 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:47" (1/1) ... [2022-10-17 16:50:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:50:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-10-17 16:50:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-10-17 16:50:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:50:47,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:47,847 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 16:50:48,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2022-10-17 16:50:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-10-17 16:50:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:50:48,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:48,454 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 16:50:48,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2022-10-17 16:50:48,789 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-10-17 16:50:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:50:48,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:50:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2022-10-17 16:50:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-10-17 16:50:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:50:49,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:50:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2022-10-17 16:50:51,462 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-10-17 16:50:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:50:51,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:51,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:50:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2022-10-17 16:50:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2022-10-17 16:50:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:50:53,712 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:53,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:50:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2022-10-17 16:50:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-10-17 16:50:55,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:50:55,562 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-10-17 16:50:55,577 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:50:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:50:55 ImpRootNode [2022-10-17 16:50:55,753 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:50:55,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:50:55,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:50:55,754 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:50:55,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:47" (3/4) ... [2022-10-17 16:50:55,758 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:50:55,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2022-10-17 16:50:55,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-10-17 16:50:55,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:50:55,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:50:55,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:50:55,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:50:55,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:50:55,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:50:55,839 INFO L158 Benchmark]: Toolchain (without parser) took 9102.84ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 72.7MB in the beginning and 113.2MB in the end (delta: -40.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,840 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:55,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.57ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 91.6MB in the end (delta: -19.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.86ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 90.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:55,843 INFO L158 Benchmark]: Boogie Preprocessor took 19.93ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 89.5MB in the end (delta: 666.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,844 INFO L158 Benchmark]: RCFGBuilder took 352.56ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 78.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,844 INFO L158 Benchmark]: CodeCheck took 8256.82ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 78.0MB in the beginning and 115.3MB in the end (delta: -37.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,845 INFO L158 Benchmark]: Witness Printer took 83.99ms. Allocated memory is still 172.0MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:55,847 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 472 IncrementalHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 133 mSDtfsCounter, 472 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 989 GetRequests, 868 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4241 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 49/66 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: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.57ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 91.6MB in the end (delta: -19.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.86ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 90.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.93ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 89.5MB in the end (delta: 666.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.56ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 78.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 8256.82ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 78.0MB in the beginning and 115.3MB in the end (delta: -37.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 83.99ms. Allocated memory is still 172.0MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:50:55,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0488a5a-faab-4582-a798-2f1fa61abc9e/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 Result: TRUE