./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex02-1.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_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/trex02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 --- 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 10:11:48,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:11:48,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:11:48,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:11:48,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:11:48,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:11:48,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:11:48,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:11:48,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:11:48,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:11:48,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:11:48,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:11:48,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:11:48,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:11:48,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:11:48,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:11:48,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:11:48,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:11:48,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:11:48,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:11:48,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:11:48,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:11:48,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:11:48,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:11:48,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:11:48,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:11:48,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:11:48,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:11:48,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:11:48,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:11:48,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:11:48,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:11:48,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:11:48,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:11:48,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:11:48,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:11:48,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:11:48,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:11:48,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:11:48,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:11:48,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:11:48,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:11:48,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:11:48,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:11:48,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:11:48,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:11:48,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:11:48,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:11:48,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:11:48,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:11:48,462 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:11:48,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:11:48,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:11:48,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:11:48,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:11:48,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:11:48,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:11:48,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:11:48,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:11:48,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:11:48,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:11:48,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:11:48,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:11:48,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:11:48,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:11:48,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:11:48,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:48,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:11:48,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:11:48,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:11:48,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:11:48,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:11:48,470 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:11:48,470 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:11:48,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:11:48,471 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_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 [2022-10-17 10:11:48,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:11:48,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:11:48,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:11:48,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:11:48,801 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:11:48,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/loops/trex02-1.c [2022-10-17 10:11:48,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/data/fecae588d/83658ca224a34a86a9e7c771c3b20908/FLAG96aed5902 [2022-10-17 10:11:49,372 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:11:49,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/sv-benchmarks/c/loops/trex02-1.c [2022-10-17 10:11:49,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/data/fecae588d/83658ca224a34a86a9e7c771c3b20908/FLAG96aed5902 [2022-10-17 10:11:49,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/data/fecae588d/83658ca224a34a86a9e7c771c3b20908 [2022-10-17 10:11:49,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:11:49,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:11:49,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:49,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:11:49,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:11:49,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:49" (1/1) ... [2022-10-17 10:11:49,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2398d4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:49, skipping insertion in model container [2022-10-17 10:11:49,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:49" (1/1) ... [2022-10-17 10:11:49,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:11:49,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:11:49,975 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_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/sv-benchmarks/c/loops/trex02-1.c[320,333] [2022-10-17 10:11:49,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:49,999 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:11:50,012 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_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/sv-benchmarks/c/loops/trex02-1.c[320,333] [2022-10-17 10:11:50,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:50,029 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:11:50,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50 WrapperNode [2022-10-17 10:11:50,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:50,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:50,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:11:50,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:11:50,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,064 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-10-17 10:11:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:50,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:11:50,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:11:50,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:11:50,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:11:50,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:11:50,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:11:50,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:11:50,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (1/1) ... [2022-10-17 10:11:50,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:50,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:11:50,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:11:50,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:11:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:11:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-10-17 10:11:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-10-17 10:11:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:11:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:11:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:11:50,248 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:11:50,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:11:50,348 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:11:50,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:11:50,355 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:11:50,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:50 BoogieIcfgContainer [2022-10-17 10:11:50,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:11:50,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:11:50,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:11:50,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:11:50,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:11:49" (1/3) ... [2022-10-17 10:11:50,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705ce0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:50, skipping insertion in model container [2022-10-17 10:11:50,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:50" (2/3) ... [2022-10-17 10:11:50,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705ce0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:50, skipping insertion in model container [2022-10-17 10:11:50,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:50" (3/3) ... [2022-10-17 10:11:50,370 INFO L112 eAbstractionObserver]: Analyzing ICFG trex02-1.c [2022-10-17 10:11:50,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:11:50,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:11:50,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:11:50,458 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f8d881b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:11:50,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:11:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:11:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 10:11:50,471 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:50,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:11:50,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:50,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash 949166183, now seen corresponding path program 1 times [2022-10-17 10:11:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:11:50,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583576182] [2022-10-17 10:11:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:50,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:11:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:11:50,653 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 10:11:50,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:11:50,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583576182] [2022-10-17 10:11:50,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583576182] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:11:50,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:11:50,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:11:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842394883] [2022-10-17 10:11:50,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:11:50,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:11:50,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:11:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:11:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:11:50,735 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:11:50,753 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-10-17 10:11:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:11:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-17 10:11:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:11:50,765 INFO L225 Difference]: With dead ends: 25 [2022-10-17 10:11:50,765 INFO L226 Difference]: Without dead ends: 13 [2022-10-17 10:11:50,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:11:50,773 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:11:50,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:11:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-10-17 10:11:50,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-10-17 10:11:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:11:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-10-17 10:11:50,816 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 6 [2022-10-17 10:11:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:11:50,817 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-10-17 10:11:50,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-10-17 10:11:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 10:11:50,819 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:50,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:11:50,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:11:50,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash 948808691, now seen corresponding path program 1 times [2022-10-17 10:11:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:11:50,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121650085] [2022-10-17 10:11:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:50,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:11:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:11:50,998 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 10:11:50,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:11:50,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121650085] [2022-10-17 10:11:50,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121650085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:11:50,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:11:51,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:11:51,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097910852] [2022-10-17 10:11:51,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:11:51,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:11:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:11:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:11:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:11:51,004 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:51,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:11:51,034 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-10-17 10:11:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:11:51,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-17 10:11:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:11:51,047 INFO L225 Difference]: With dead ends: 13 [2022-10-17 10:11:51,047 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:11:51,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:11:51,050 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:11:51,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:11:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:11:51,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:11:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:11:51,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-10-17 10:11:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:11:51,053 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:11:51,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:11:51,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:11:51,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:11:51,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:11:51,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:11:51,088 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 17 19) no Hoare annotation was computed. [2022-10-17 10:11:51,088 INFO L902 garLoopResultBuilder]: At program point fooENTRY(lines 17 19) the Hoare annotation is: true [2022-10-17 10:11:51,088 INFO L899 garLoopResultBuilder]: For program point fooFINAL(lines 17 19) no Hoare annotation was computed. [2022-10-17 10:11:51,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:11:51,089 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 26) no Hoare annotation was computed. [2022-10-17 10:11:51,089 INFO L902 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: true [2022-10-17 10:11:51,089 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2022-10-17 10:11:51,089 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 29) no Hoare annotation was computed. [2022-10-17 10:11:51,090 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-17 10:11:51,090 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:11:51,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:11:51,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:11:51,091 INFO L902 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2022-10-17 10:11:51,091 INFO L902 garLoopResultBuilder]: At program point L26-1(lines 23 27) the Hoare annotation is: true [2022-10-17 10:11:51,091 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-10-17 10:11:51,091 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-10-17 10:11:51,091 INFO L902 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2022-10-17 10:11:51,095 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:11:51,098 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:11:51,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:11:51 BoogieIcfgContainer [2022-10-17 10:11:51,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:11:51,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:11:51,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:11:51,108 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:11:51,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:50" (3/4) ... [2022-10-17 10:11:51,112 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:11:51,120 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2022-10-17 10:11:51,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 10:11:51,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 10:11:51,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:11:51,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:11:51,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:11:51,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:11:51,176 INFO L158 Benchmark]: Toolchain (without parser) took 1416.81ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 68.9MB in the beginning and 88.1MB in the end (delta: -19.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,177 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 63.0MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:11:51,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.53ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 68.4MB in the end (delta: 220.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.98ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,178 INFO L158 Benchmark]: Boogie Preprocessor took 21.74ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 65.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:11:51,179 INFO L158 Benchmark]: RCFGBuilder took 269.15ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 57.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,180 INFO L158 Benchmark]: TraceAbstraction took 747.75ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 56.4MB in the beginning and 90.2MB in the end (delta: -33.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,180 INFO L158 Benchmark]: Witness Printer took 67.38ms. Allocated memory is still 130.0MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:11:51,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 63.0MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.53ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 68.4MB in the end (delta: 220.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.98ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.74ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 65.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.15ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 57.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 747.75ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 56.4MB in the beginning and 90.2MB in the end (delta: -33.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 67.38ms. Allocated memory is still 130.0MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 31 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 6 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 10:11:51,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43ae2659-3c9e-4a37-bfbb-fa1210f2c019/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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