./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:08:17,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:08:17,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:08:17,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:08:17,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:08:17,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:08:17,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:08:17,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:08:17,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:08:17,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:08:17,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:08:17,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:08:17,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:08:17,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:08:17,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:08:17,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:08:17,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:08:17,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:08:17,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:08:17,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:08:17,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:08:17,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:08:17,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:08:17,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:08:17,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:08:17,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:08:17,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:08:17,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:08:17,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:08:17,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:08:17,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:08:17,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:08:17,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:08:17,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:08:17,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:08:17,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:08:17,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:08:17,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:08:17,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:08:17,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:08:17,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:08:17,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:08:17,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:08:17,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:08:17,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:08:17,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:08:17,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:08:17,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:08:17,246 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:08:17,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:08:17,247 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:08:17,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:08:17,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:08:17,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:08:17,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:08:17,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:08:17,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:08:17,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:08:17,251 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:08:17,251 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:08:17,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:08:17,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:08:17,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:08:17,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:08:17,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:08:17,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:08:17,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:08:17,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:08:17,255 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:08:17,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:08:17,256 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:08:17,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:08:17,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:08:17,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:08:17,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:08:17,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:08:17,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:08:17,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:08:17,258 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:08:17,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:08:17,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:08:17,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:08:17,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:08:17,280 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2021-11-21 00:08:17,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:08:17,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:08:17,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:08:17,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:08:17,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:08:17,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2021-11-21 00:08:17,767 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/data/6f4af3903/b10c971f175c443bb55a38167e5f3dcd/FLAGa55cdeb13 [2021-11-21 00:08:18,453 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:08:18,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2021-11-21 00:08:18,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/data/6f4af3903/b10c971f175c443bb55a38167e5f3dcd/FLAGa55cdeb13 [2021-11-21 00:08:18,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/data/6f4af3903/b10c971f175c443bb55a38167e5f3dcd [2021-11-21 00:08:18,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:08:18,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:08:18,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:08:18,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:08:18,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:08:18,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:08:18" (1/1) ... [2021-11-21 00:08:18,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd75af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:18, skipping insertion in model container [2021-11-21 00:08:18,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:08:18" (1/1) ... [2021-11-21 00:08:18,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:08:18,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:08:19,058 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_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2021-11-21 00:08:19,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:08:19,360 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:08:19,378 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_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2021-11-21 00:08:19,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:08:19,469 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:08:19,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19 WrapperNode [2021-11-21 00:08:19,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:08:19,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:08:19,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:08:19,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:08:19,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,528 INFO L137 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2021-11-21 00:08:19,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:08:19,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:08:19,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:08:19,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:08:19,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:08:19,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:08:19,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:08:19,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:08:19,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (1/1) ... [2021-11-21 00:08:19,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:08:19,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:19,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:08:19,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:08:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:08:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:08:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-21 00:08:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:08:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:08:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-21 00:08:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-21 00:08:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:08:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:08:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:08:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:08:19,704 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 00:08:19,885 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:08:19,887 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:08:20,140 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:08:20,149 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:08:20,149 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 00:08:20,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:08:20 BoogieIcfgContainer [2021-11-21 00:08:20,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:08:20,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:08:20,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:08:20,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:08:20,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:08:18" (1/3) ... [2021-11-21 00:08:20,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b962ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:08:20, skipping insertion in model container [2021-11-21 00:08:20,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:19" (2/3) ... [2021-11-21 00:08:20,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b962ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:08:20, skipping insertion in model container [2021-11-21 00:08:20,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:08:20" (3/3) ... [2021-11-21 00:08:20,163 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2021-11-21 00:08:20,173 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 00:08:20,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:08:20,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:08:20,174 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 00:08:20,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,216 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,216 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,217 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,218 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,219 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,220 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,222 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,223 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,223 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,232 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,232 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,233 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,233 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,233 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,233 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,234 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:08:20,242 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-21 00:08:20,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:08:20,337 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:08:20,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 00:08:20,361 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 00:08:20,387 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 74 transitions, 156 flow [2021-11-21 00:08:20,391 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 74 transitions, 156 flow [2021-11-21 00:08:20,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2021-11-21 00:08:20,468 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2021-11-21 00:08:20,469 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-21 00:08:20,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2021-11-21 00:08:20,478 INFO L116 LiptonReduction]: Number of co-enabled transitions 448 [2021-11-21 00:08:23,733 INFO L131 LiptonReduction]: Checked pairs total: 892 [2021-11-21 00:08:23,733 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-11-21 00:08:23,744 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 40 flow [2021-11-21 00:08:23,756 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 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) [2021-11-21 00:08:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 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) [2021-11-21 00:08:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-21 00:08:23,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:23,766 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-21 00:08:23,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-21 00:08:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2021-11-21 00:08:23,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:23,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203211545] [2021-11-21 00:08:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:23,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:23,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:23,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203211545] [2021-11-21 00:08:23,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203211545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:23,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:23,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-21 00:08:23,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739716365] [2021-11-21 00:08:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:23,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:08:23,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:23,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:08:23,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:08:23,984 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-11-21 00:08:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:24,026 INFO L93 Difference]: Finished difference Result 20 states and 32 transitions. [2021-11-21 00:08:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:08:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2021-11-21 00:08:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:24,053 INFO L225 Difference]: With dead ends: 20 [2021-11-21 00:08:24,053 INFO L226 Difference]: Without dead ends: 20 [2021-11-21 00:08:24,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:08:24,067 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:24,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:08:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-21 00:08:24,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-21 00:08:24,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 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) [2021-11-21 00:08:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 32 transitions. [2021-11-21 00:08:24,108 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 32 transitions. Word has length 1 [2021-11-21 00:08:24,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:24,108 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 32 transitions. [2021-11-21 00:08:24,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-11-21 00:08:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2021-11-21 00:08:24,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:08:24,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:24,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:08:24,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:08:24,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-21 00:08:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:24,111 INFO L85 PathProgramCache]: Analyzing trace with hash 8638482, now seen corresponding path program 1 times [2021-11-21 00:08:24,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:24,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736521098] [2021-11-21 00:08:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:24,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:24,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:24,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736521098] [2021-11-21 00:08:24,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736521098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:24,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:24,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:08:24,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82567322] [2021-11-21 00:08:24,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:24,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:08:24,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:08:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:24,266 INFO L87 Difference]: Start difference. First operand 20 states and 32 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-21 00:08:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:24,296 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-11-21 00:08:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:08:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-21 00:08:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:24,298 INFO L225 Difference]: With dead ends: 17 [2021-11-21 00:08:24,298 INFO L226 Difference]: Without dead ends: 11 [2021-11-21 00:08:24,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:24,300 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:24,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:08:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-21 00:08:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-21 00:08:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-11-21 00:08:24,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-21 00:08:24,305 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 4 [2021-11-21 00:08:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:24,306 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-21 00:08:24,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-21 00:08:24,306 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-21 00:08:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 00:08:24,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:24,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-21 00:08:24,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:08:24,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-21 00:08:24,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:24,308 INFO L85 PathProgramCache]: Analyzing trace with hash -288348408, now seen corresponding path program 1 times [2021-11-21 00:08:24,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:24,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372010104] [2021-11-21 00:08:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:24,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:24,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:24,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372010104] [2021-11-21 00:08:24,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372010104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:24,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:24,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:08:24,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487935307] [2021-11-21 00:08:24,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:24,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:08:24,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:08:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:08:24,453 INFO L87 Difference]: Start difference. First operand 11 states and 12 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) [2021-11-21 00:08:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:24,484 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2021-11-21 00:08:24,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:08:24,485 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 [2021-11-21 00:08:24,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:24,486 INFO L225 Difference]: With dead ends: 6 [2021-11-21 00:08:24,486 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:08:24,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:24,488 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:24,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:08:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:08:24,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:08:24,490 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) [2021-11-21 00:08:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:08:24,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-11-21 00:08:24,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:24,491 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:08:24,491 INFO L471 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) [2021-11-21 00:08:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:08:24,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:08:24,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-21 00:08:24,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-21 00:08:24,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2021-11-21 00:08:24,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:08:24,498 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-21 00:08:24,505 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-21 00:08:24,506 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:08:24,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:08:24 BasicIcfg [2021-11-21 00:08:24,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:08:24,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:08:24,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:08:24,520 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:08:24,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:08:20" (3/4) ... [2021-11-21 00:08:24,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:08:24,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-21 00:08:24,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-21 00:08:24,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-21 00:08:24,543 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:08:24,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:08:24,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:08:24,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:08:24,595 INFO L158 Benchmark]: Toolchain (without parser) took 5898.82ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 60.6MB in the beginning and 89.6MB in the end (delta: -29.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,596 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:08:24,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 754.17ms. Allocated memory is still 104.9MB. Free memory was 60.3MB in the beginning and 70.5MB in the end (delta: -10.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.38ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 68.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,597 INFO L158 Benchmark]: Boogie Preprocessor took 28.06ms. Allocated memory is still 104.9MB. Free memory was 68.4MB in the beginning and 67.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,598 INFO L158 Benchmark]: RCFGBuilder took 593.31ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 55.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,600 INFO L158 Benchmark]: TraceAbstraction took 4363.67ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 55.3MB in the beginning and 91.7MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:08:24,601 INFO L158 Benchmark]: Witness Printer took 75.29ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:08:24,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 754.17ms. Allocated memory is still 104.9MB. Free memory was 60.3MB in the beginning and 70.5MB in the end (delta: -10.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.38ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 68.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.06ms. Allocated memory is still 104.9MB. Free memory was 68.4MB in the beginning and 67.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.31ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 55.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4363.67ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 55.3MB in the beginning and 91.7MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.29ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 89.6MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 75 PlacesBefore, 19 PlacesAfterwards, 74 TransitionsBefore, 16 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 892 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 648, positive: 563, positive conditional: 0, positive unconditional: 563, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 404, positive: 379, positive conditional: 0, positive unconditional: 379, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 404, positive: 368, positive conditional: 0, positive unconditional: 368, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 648, positive: 184, positive conditional: 0, positive unconditional: 184, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 404, unknown conditional: 0, unknown unconditional: 404] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-21 00:08:24,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5d5f92-5f25-4d97-aad7-ab1e2eb88f66/bin/utaipan-TEXQjIfE4P/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