./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8 --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 05085beafc13f38fbda38ea415197838c6c50810d8ce271072546e893cc1f1e6 --- 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-2329fc7 [2022-12-13 21:37:13,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:37:13,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:37:13,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:37:13,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:37:13,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:37:13,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:37:13,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:37:13,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:37:13,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:37:13,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:37:13,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:37:13,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:37:13,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:37:13,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:37:13,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:37:13,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:37:13,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:37:13,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:37:13,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:37:13,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:37:13,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:37:13,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:37:13,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:37:13,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:37:13,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:37:13,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:37:13,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:37:13,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:37:13,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:37:13,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:37:13,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:37:13,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:37:13,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:37:13,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:37:13,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:37:13,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:37:13,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:37:13,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:37:13,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:37:13,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:37:13,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:37:13,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:37:13,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:37:13,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:37:13,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:37:13,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:37:13,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:37:13,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:37:13,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:37:13,246 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:37:13,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:37:13,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:37:13,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:37:13,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:37:13,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:37:13,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:37:13,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:37:13,264 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:37:13,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:37:13,264 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:37:13,264 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05085beafc13f38fbda38ea415197838c6c50810d8ce271072546e893cc1f1e6 [2022-12-13 21:37:13,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:37:13,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:37:13,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:37:13,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:37:13,444 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:37:13,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-regression/test21-1.c [2022-12-13 21:37:16,107 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:37:16,250 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:37:16,251 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/sv-benchmarks/c/ldv-regression/test21-1.c [2022-12-13 21:37:16,255 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/data/bebb53489/bf32b2df71da45769bc374fb2bfc6c65/FLAG94055babc [2022-12-13 21:37:16,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/data/bebb53489/bf32b2df71da45769bc374fb2bfc6c65 [2022-12-13 21:37:16,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:37:16,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:37:16,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:37:16,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:37:16,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:37:16,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5d3629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16, skipping insertion in model container [2022-12-13 21:37:16,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:37:16,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:37:16,436 WARN L237 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_51fcff40-ea3d-4e2f-a743-84da95005618/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2022-12-13 21:37:16,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:37:16,449 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:37:16,464 WARN L237 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_51fcff40-ea3d-4e2f-a743-84da95005618/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2022-12-13 21:37:16,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:37:16,478 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:37:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16 WrapperNode [2022-12-13 21:37:16,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:37:16,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:37:16,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:37:16,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:37:16,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,506 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 21:37:16,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:37:16,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:37:16,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:37:16,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:37:16,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:37:16,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:37:16,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:37:16,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:37:16,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (1/1) ... [2022-12-13 21:37:16,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:37:16,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:16,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:16,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:37:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:37:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:37:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:37:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-12-13 21:37:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-12-13 21:37:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:37:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:37:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:37:16,659 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:37:16,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:37:16,769 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:37:16,775 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:37:16,775 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:37:16,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:37:16 BoogieIcfgContainer [2022-12-13 21:37:16,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:37:16,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:37:16,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:37:16,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:37:16,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:37:16" (1/3) ... [2022-12-13 21:37:16,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e0398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:37:16, skipping insertion in model container [2022-12-13 21:37:16,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:37:16" (2/3) ... [2022-12-13 21:37:16,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e0398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:37:16, skipping insertion in model container [2022-12-13 21:37:16,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:37:16" (3/3) ... [2022-12-13 21:37:16,785 INFO L112 eAbstractionObserver]: Analyzing ICFG test21-1.c [2022-12-13 21:37:16,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:37:16,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:37:16,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:37:16,860 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;@6daf2103, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:37:16,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:37:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) 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), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 21:37:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 21:37:16,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:37:16,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:37:16,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:37:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash 873521615, now seen corresponding path program 1 times [2022-12-13 21:37:16,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:16,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306617026] [2022-12-13 21:37:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:37:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 21:37:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:37:17,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:37:17,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306617026] [2022-12-13 21:37:17,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306617026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:37:17,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:37:17,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:37:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076203192] [2022-12-13 21:37:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:37:17,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:37:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:37:17,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:37:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:37:17,342 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.2142857142857142) 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), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:37:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:37:17,371 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-12-13 21:37:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:37:17,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-12-13 21:37:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:37:17,388 INFO L225 Difference]: With dead ends: 26 [2022-12-13 21:37:17,388 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 21:37:17,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:37:17,394 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:37:17,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 52 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:37:17,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 21:37:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 21:37:17,426 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) [2022-12-13 21:37:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 21:37:17,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-12-13 21:37:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:37:17,428 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:37:17,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:37:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:37:17,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 21:37:17,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:37:17,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:37:17,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 21:37:17,446 INFO L899 garLoopResultBuilder]: For program point get_dummyFINAL(lines 22 25) no Hoare annotation was computed. [2022-12-13 21:37:17,446 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 25) the Hoare annotation is: true [2022-12-13 21:37:17,446 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2022-12-13 21:37:17,447 INFO L902 garLoopResultBuilder]: At program point L35-2(line 35) the Hoare annotation is: true [2022-12-13 21:37:17,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 21:37:17,447 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-12-13 21:37:17,447 INFO L895 garLoopResultBuilder]: At program point check_returnLabel#1(lines 27 30) the Hoare annotation is: (<= 1 |ULTIMATE.start_check_#res#1|) [2022-12-13 21:37:17,447 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 32 46) the Hoare annotation is: true [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 40) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 21:37:17,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2022-12-13 21:37:17,449 INFO L895 garLoopResultBuilder]: At program point main_ERROR#1(lines 33 46) the Hoare annotation is: false [2022-12-13 21:37:17,449 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 39) no Hoare annotation was computed. [2022-12-13 21:37:17,449 INFO L902 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: true [2022-12-13 21:37:17,449 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-12-13 21:37:17,451 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:37:17,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:37:17,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:37:17 BoogieIcfgContainer [2022-12-13 21:37:17,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:37:17,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:37:17,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:37:17,465 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:37:17,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:37:16" (3/4) ... [2022-12-13 21:37:17,468 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:37:17,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-12-13 21:37:17,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 21:37:17,477 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 21:37:17,477 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 21:37:17,477 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:37:17,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1 <= \result [2022-12-13 21:37:17,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:37:17,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:37:17,513 INFO L158 Benchmark]: Toolchain (without parser) took 1240.49ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 119.5MB in the beginning and 190.7MB in the end (delta: -71.3MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-12-13 21:37:17,513 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:17,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.79ms. Allocated memory is still 155.2MB. Free memory was 118.9MB in the beginning and 108.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:37:17,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.02ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 107.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:37:17,515 INFO L158 Benchmark]: Boogie Preprocessor took 20.67ms. Allocated memory is still 155.2MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:17,515 INFO L158 Benchmark]: RCFGBuilder took 248.81ms. Allocated memory is still 155.2MB. Free memory was 106.0MB in the beginning and 95.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:37:17,515 INFO L158 Benchmark]: TraceAbstraction took 685.63ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 93.9MB in the beginning and 193.9MB in the end (delta: -99.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:17,516 INFO L158 Benchmark]: Witness Printer took 47.56ms. Allocated memory is still 226.5MB. Free memory was 193.9MB in the beginning and 190.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:37:17,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.79ms. Allocated memory is still 155.2MB. Free memory was 118.9MB in the beginning and 108.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.02ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 107.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.67ms. Allocated memory is still 155.2MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.81ms. Allocated memory is still 155.2MB. Free memory was 106.0MB in the beginning and 95.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 685.63ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 93.9MB in the beginning and 193.9MB in the end (delta: -99.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.56ms. Allocated memory is still 226.5MB. Free memory was 193.9MB in the beginning and 190.7MB in the end (delta: 3.1MB). 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: 44]: 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 9 NumberOfFragments, 8 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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: 27]: Loop Invariant Derived loop invariant: 1 <= \result - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-12-13 21:37:17,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51fcff40-ea3d-4e2f-a743-84da95005618/bin/uautomizer-uyxdKDjOR8/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