./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG --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 bf5caed0975bcd13784481e6ed5c6e2683f42c4424e4d0ddd251aa22a6d5bd38 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:43:55,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:43:55,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:43:55,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:43:55,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:43:55,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:43:55,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:43:55,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:43:55,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:43:55,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:43:55,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:43:55,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:43:55,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:43:55,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:43:55,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:43:55,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:43:55,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:43:55,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:43:55,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:43:55,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:43:55,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:43:55,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:43:55,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:43:55,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:43:55,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:43:55,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:43:55,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:43:55,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:43:55,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:43:55,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:43:55,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:43:55,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:43:55,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:43:55,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:43:55,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:43:55,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:43:55,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:43:55,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:43:55,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:43:55,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:43:55,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:43:55,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:43:55,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:43:55,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:43:55,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:43:55,593 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:43:55,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:43:55,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:43:55,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:43:55,594 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:43:55,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:43:55,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:43:55,595 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:43:55,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:43:55,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:43:55,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:43:55,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:43:55,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:43:55,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:43:55,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:43:55,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:43:55,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:43:55,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:43:55,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:43:55,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:43:55,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:43:55,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:43:55,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:43:55,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:43:55,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:43:55,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:43:55,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:43:55,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:43:55,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:43:55,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:43:55,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:43:55,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:43:55,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:43:55,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:43:55,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:43:55,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:43:55,606 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_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5caed0975bcd13784481e6ed5c6e2683f42c4424e4d0ddd251aa22a6d5bd38 [2021-10-29 05:43:55,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:43:55,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:43:55,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:43:55,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:43:55,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:43:55,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-10-29 05:43:56,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/data/1a1a95b9a/8d435dbf038e46429942e9b5fd29b836/FLAG3ecdcdb16 [2021-10-29 05:43:56,633 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:43:56,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-10-29 05:43:56,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/data/1a1a95b9a/8d435dbf038e46429942e9b5fd29b836/FLAG3ecdcdb16 [2021-10-29 05:43:56,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/data/1a1a95b9a/8d435dbf038e46429942e9b5fd29b836 [2021-10-29 05:43:56,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:43:56,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:43:56,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:56,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:43:56,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:43:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:56" (1/1) ... [2021-10-29 05:43:56,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc5ec17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:56, skipping insertion in model container [2021-10-29 05:43:56,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:56" (1/1) ... [2021-10-29 05:43:56,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:43:57,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:43:57,237 WARN L228 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_822611e7-9ad1-44c8-8db2-3283ee2b3843/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[335,348] [2021-10-29 05:43:57,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:57,355 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:43:57,373 WARN L228 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_822611e7-9ad1-44c8-8db2-3283ee2b3843/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[335,348] [2021-10-29 05:43:57,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:57,483 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:43:57,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57 WrapperNode [2021-10-29 05:43:57,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:57,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:43:57,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:43:57,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:43:57,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:43:57,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:43:57,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:43:57,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:43:57,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:43:57,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:43:57,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:43:57,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:43:57,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (1/1) ... [2021-10-29 05:43:57,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:43:57,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:43:57,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:43:57,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:43:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:43:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:43:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:43:57,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:43:58,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0; [2021-10-29 05:43:58,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume !(1 == ~q_free~0); [2021-10-29 05:43:59,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:43:59,135 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2021-10-29 05:43:59,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:59 BoogieIcfgContainer [2021-10-29 05:43:59,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:43:59,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:43:59,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:43:59,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:43:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:43:56" (1/3) ... [2021-10-29 05:43:59,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a38ecff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:43:59, skipping insertion in model container [2021-10-29 05:43:59,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:57" (2/3) ... [2021-10-29 05:43:59,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a38ecff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:43:59, skipping insertion in model container [2021-10-29 05:43:59,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:59" (3/3) ... [2021-10-29 05:43:59,151 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2021-10-29 05:43:59,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:43:59,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 05:43:59,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:43:59,231 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 [2021-10-29 05:43:59,231 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-29 05:43:59,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 64 states have internal predecessors, (105), 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) [2021-10-29 05:43:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:43:59,259 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:59,260 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:43:59,261 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:43:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash -773239664, now seen corresponding path program 1 times [2021-10-29 05:43:59,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:43:59,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14554074] [2021-10-29 05:43:59,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:59,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:43:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:59,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:43:59,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14554074] [2021-10-29 05:43:59,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14554074] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:59,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:59,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:43:59,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606650663] [2021-10-29 05:43:59,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:43:59,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:43:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:43:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:59,520 INFO L87 Difference]: Start difference. First operand has 65 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 64 states have internal predecessors, (105), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-10-29 05:43:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:59,646 INFO L93 Difference]: Finished difference Result 170 states and 272 transitions. [2021-10-29 05:43:59,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2021-10-29 05:43:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:59,666 INFO L225 Difference]: With dead ends: 170 [2021-10-29 05:43:59,666 INFO L226 Difference]: Without dead ends: 103 [2021-10-29 05:43:59,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-29 05:43:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2021-10-29 05:43:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 97 states have internal predecessors, (148), 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) [2021-10-29 05:43:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 148 transitions. [2021-10-29 05:43:59,743 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 148 transitions. Word has length 17 [2021-10-29 05:43:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:59,744 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 148 transitions. [2021-10-29 05:43:59,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-10-29 05:43:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 148 transitions. [2021-10-29 05:43:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:43:59,747 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:59,747 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:43:59,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:43:59,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:43:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash 660316225, now seen corresponding path program 1 times [2021-10-29 05:43:59,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:43:59,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416799614] [2021-10-29 05:43:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:59,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:43:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:59,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:43:59,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416799614] [2021-10-29 05:43:59,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416799614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:59,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:59,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:43:59,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858392191] [2021-10-29 05:43:59,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:43:59,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:43:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:43:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:43:59,884 INFO L87 Difference]: Start difference. First operand 98 states and 148 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-29 05:44:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:44:00,048 INFO L93 Difference]: Finished difference Result 300 states and 448 transitions. [2021-10-29 05:44:00,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:44:00,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-29 05:44:00,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:44:00,052 INFO L225 Difference]: With dead ends: 300 [2021-10-29 05:44:00,052 INFO L226 Difference]: Without dead ends: 208 [2021-10-29 05:44:00,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:44:00,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-29 05:44:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 162. [2021-10-29 05:44:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.4875) internal successors, (238), 161 states have internal predecessors, (238), 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) [2021-10-29 05:44:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 238 transitions. [2021-10-29 05:44:00,095 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 238 transitions. Word has length 18 [2021-10-29 05:44:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:44:00,097 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 238 transitions. [2021-10-29 05:44:00,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-29 05:44:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 238 transitions. [2021-10-29 05:44:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:44:00,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:44:00,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:44:00,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:44:00,101 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:44:00,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:44:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1296351071, now seen corresponding path program 1 times [2021-10-29 05:44:00,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:44:00,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442113830] [2021-10-29 05:44:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:44:00,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:44:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:44:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:44:00,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:44:00,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442113830] [2021-10-29 05:44:00,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442113830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:44:00,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:44:00,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:44:00,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109951953] [2021-10-29 05:44:00,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:44:00,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:44:00,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:44:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:44:00,211 INFO L87 Difference]: Start difference. First operand 162 states and 238 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-29 05:44:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:44:00,323 INFO L93 Difference]: Finished difference Result 336 states and 490 transitions. [2021-10-29 05:44:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:44:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-29 05:44:00,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:44:00,325 INFO L225 Difference]: With dead ends: 336 [2021-10-29 05:44:00,325 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:44:00,331 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:44:00,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:44:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:44:00,332 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) [2021-10-29 05:44:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:44:00,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-29 05:44:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:44:00,332 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:44:00,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-29 05:44:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:44:00,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:44:00,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:44:00,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:44:00,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:44:00,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:44:00,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:44:00,564 INFO L857 garLoopResultBuilder]: For program point L68-3(lines 68 77) no Hoare annotation was computed. [2021-10-29 05:44:00,565 INFO L857 garLoopResultBuilder]: For program point L68-5(lines 68 77) no Hoare annotation was computed. [2021-10-29 05:44:00,565 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-29 05:44:00,565 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 74) no Hoare annotation was computed. [2021-10-29 05:44:00,565 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 69 74) no Hoare annotation was computed. [2021-10-29 05:44:00,566 INFO L857 garLoopResultBuilder]: For program point L69-2(lines 69 74) no Hoare annotation was computed. [2021-10-29 05:44:00,566 INFO L853 garLoopResultBuilder]: At program point L502(lines 502 511) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,566 INFO L853 garLoopResultBuilder]: At program point L502-1(lines 502 511) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,566 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 153) no Hoare annotation was computed. [2021-10-29 05:44:00,567 INFO L853 garLoopResultBuilder]: At program point L108(lines 86 110) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~c_dr_pc~0 ~p_dw_pc~0)) [2021-10-29 05:44:00,567 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 86 110) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,567 INFO L853 garLoopResultBuilder]: At program point L108-2(lines 86 110) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,567 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 411) no Hoare annotation was computed. [2021-10-29 05:44:00,568 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 402 442) no Hoare annotation was computed. [2021-10-29 05:44:00,568 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-10-29 05:44:00,568 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-29 05:44:00,568 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2021-10-29 05:44:00,568 INFO L853 garLoopResultBuilder]: At program point L12-1(lines 190 244) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,569 INFO L853 garLoopResultBuilder]: At program point L145(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,569 INFO L853 garLoopResultBuilder]: At program point L79(lines 57 81) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~c_dr_pc~0 ~p_dw_pc~0)) [2021-10-29 05:44:00,569 INFO L853 garLoopResultBuilder]: At program point L79-1(lines 57 81) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,569 INFO L853 garLoopResultBuilder]: At program point L79-2(lines 57 81) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,569 INFO L853 garLoopResultBuilder]: At program point L443(lines 396 448) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,570 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2021-10-29 05:44:00,570 INFO L853 garLoopResultBuilder]: At program point L412(lines 402 442) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,570 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-10-29 05:44:00,570 INFO L857 garLoopResultBuilder]: For program point L416(lines 416 423) no Hoare annotation was computed. [2021-10-29 05:44:00,570 INFO L860 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-10-29 05:44:00,571 INFO L853 garLoopResultBuilder]: At program point L483-1(lines 317 520) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,571 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2021-10-29 05:44:00,571 INFO L857 garLoopResultBuilder]: For program point L87-2(lines 86 110) no Hoare annotation was computed. [2021-10-29 05:44:00,571 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 87 96) no Hoare annotation was computed. [2021-10-29 05:44:00,571 INFO L857 garLoopResultBuilder]: For program point L87-5(lines 86 110) no Hoare annotation was computed. [2021-10-29 05:44:00,572 INFO L857 garLoopResultBuilder]: For program point L87-6(lines 87 96) no Hoare annotation was computed. [2021-10-29 05:44:00,572 INFO L857 garLoopResultBuilder]: For program point L87-8(lines 86 110) no Hoare annotation was computed. [2021-10-29 05:44:00,572 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-29 05:44:00,572 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 88 93) no Hoare annotation was computed. [2021-10-29 05:44:00,572 INFO L857 garLoopResultBuilder]: For program point L88-2(lines 88 93) no Hoare annotation was computed. [2021-10-29 05:44:00,573 INFO L853 garLoopResultBuilder]: At program point L156-1(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,573 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:44:00,573 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 67) no Hoare annotation was computed. [2021-10-29 05:44:00,573 INFO L857 garLoopResultBuilder]: For program point L58-2(lines 57 81) no Hoare annotation was computed. [2021-10-29 05:44:00,573 INFO L857 garLoopResultBuilder]: For program point L58-3(lines 58 67) no Hoare annotation was computed. [2021-10-29 05:44:00,573 INFO L857 garLoopResultBuilder]: For program point L58-5(lines 57 81) no Hoare annotation was computed. [2021-10-29 05:44:00,574 INFO L857 garLoopResultBuilder]: For program point L58-6(lines 58 67) no Hoare annotation was computed. [2021-10-29 05:44:00,574 INFO L857 garLoopResultBuilder]: For program point L58-8(lines 57 81) no Hoare annotation was computed. [2021-10-29 05:44:00,574 INFO L860 garLoopResultBuilder]: At program point L521(lines 468 526) the Hoare annotation is: true [2021-10-29 05:44:00,574 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 199) no Hoare annotation was computed. [2021-10-29 05:44:00,574 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-10-29 05:44:00,575 INFO L857 garLoopResultBuilder]: For program point L59-1(lines 59 64) no Hoare annotation was computed. [2021-10-29 05:44:00,575 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2021-10-29 05:44:00,575 INFO L857 garLoopResultBuilder]: For program point L226(lines 226 238) no Hoare annotation was computed. [2021-10-29 05:44:00,575 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 233) no Hoare annotation was computed. [2021-10-29 05:44:00,575 INFO L853 garLoopResultBuilder]: At program point L194(lines 194 198) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,576 INFO L853 garLoopResultBuilder]: At program point L427(lines 402 442) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,576 INFO L853 garLoopResultBuilder]: At program point L163(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-29 05:44:00,576 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 97 106) no Hoare annotation was computed. [2021-10-29 05:44:00,576 INFO L857 garLoopResultBuilder]: For program point L97-3(lines 97 106) no Hoare annotation was computed. [2021-10-29 05:44:00,576 INFO L857 garLoopResultBuilder]: For program point L97-5(lines 97 106) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 103) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point L98-1(lines 98 103) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point L98-2(lines 98 103) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point L431(lines 431 438) no Hoare annotation was computed. [2021-10-29 05:44:00,577 INFO L857 garLoopResultBuilder]: For program point L68-1(lines 68 77) no Hoare annotation was computed. [2021-10-29 05:44:00,581 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:44:00,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:44:00,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:44:00 BoogieIcfgContainer [2021-10-29 05:44:00,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:44:00,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:44:00,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:44:00,601 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:44:00,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:59" (3/4) ... [2021-10-29 05:44:00,606 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:44:00,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-10-29 05:44:00,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 05:44:00,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:44:00,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:44:00,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:44:00,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:44:00,748 INFO L168 Benchmark]: Toolchain (without parser) took 3813.03 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 51.2 MB in the beginning and 45.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,749 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:44:00,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.36 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 64.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.66 ms. Allocated memory is still 92.3 MB. Free memory was 64.5 MB in the beginning and 61.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,750 INFO L168 Benchmark]: Boogie Preprocessor took 69.82 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 59.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,751 INFO L168 Benchmark]: RCFGBuilder took 1491.81 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.9 MB in the beginning and 69.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,752 INFO L168 Benchmark]: TraceAbstraction took 1458.81 ms. Allocated memory is still 111.1 MB. Free memory was 68.3 MB in the beginning and 53.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,752 INFO L168 Benchmark]: Witness Printer took 145.40 ms. Allocated memory is still 111.1 MB. Free memory was 53.6 MB in the beginning and 45.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:44:00,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 544.36 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 64.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.66 ms. Allocated memory is still 92.3 MB. Free memory was 64.5 MB in the beginning and 61.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.82 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 59.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1491.81 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.9 MB in the beginning and 69.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1458.81 ms. Allocated memory is still 111.1 MB. Free memory was 68.3 MB in the beginning and 53.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 145.40 ms. Allocated memory is still 111.1 MB. Free memory was 53.6 MB in the beginning and 45.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * 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: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: 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 1 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 413 SDslu, 224 SDs, 0 SdLazy, 127 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 51 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 86 NumberOfFragments, 76 HoareAnnotationTreeSize, 19 FomulaSimplifications, 890 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 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 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: p_dw_pc == 0 && c_dr_pc == p_dw_pc - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: p_dw_pc == 0 && c_dr_pc == p_dw_pc - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 468]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 396]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) RESULT: Ultimate proved your program to be correct! [2021-10-29 05:44:00,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822611e7-9ad1-44c8-8db2-3283ee2b3843/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...