./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs --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 d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:13:59,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:13:59,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:13:59,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:13:59,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:13:59,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:13:59,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:13:59,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:13:59,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:13:59,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:13:59,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:13:59,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:13:59,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:13:59,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:13:59,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:13:59,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:13:59,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:13:59,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:13:59,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:13:59,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:13:59,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:13:59,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:13:59,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:13:59,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:13:59,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:13:59,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:13:59,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:13:59,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:13:59,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:13:59,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:13:59,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:13:59,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:13:59,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:13:59,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:13:59,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:13:59,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:13:59,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:13:59,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:13:59,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:13:59,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:13:59,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:13:59,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:13:59,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:13:59,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:13:59,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:13:59,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:13:59,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:13:59,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:13:59,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:13:59,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:13:59,530 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:13:59,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:13:59,533 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:13:59,533 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:13:59,534 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:13:59,534 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:13:59,534 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:13:59,534 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:13:59,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:13:59,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:13:59,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:13:59,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:13:59,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:13:59,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:13:59,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:13:59,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:13:59,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:13:59,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:13:59,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:13:59,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:13:59,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:13:59,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:13:59,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:13:59,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:13:59,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:13:59,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:13:59,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:13:59,549 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:13:59,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:13:59,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:13:59,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:13:59,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:13:59,550 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_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 [2021-11-19 14:13:59,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:13:59,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:13:59,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:13:59,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:13:59,917 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:13:59,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2021-11-19 14:13:59,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/data/870a53834/8b1be19f1d2049eda0e9bacb79fb73a6/FLAG4c485b520 [2021-11-19 14:14:00,551 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:00,552 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2021-11-19 14:14:00,580 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/data/870a53834/8b1be19f1d2049eda0e9bacb79fb73a6/FLAG4c485b520 [2021-11-19 14:14:00,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/data/870a53834/8b1be19f1d2049eda0e9bacb79fb73a6 [2021-11-19 14:14:00,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:00,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:00,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:00,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:00,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:00,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:00" (1/1) ... [2021-11-19 14:14:00,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332456ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:00, skipping insertion in model container [2021-11-19 14:14:00,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:00" (1/1) ... [2021-11-19 14:14:00,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:00,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:01,181 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_25b12565-08a9-47dc-8245-c1a8e63bdb9c/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2021-11-19 14:14:01,361 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:01,370 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:14:01,414 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_25b12565-08a9-47dc-8245-c1a8e63bdb9c/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2021-11-19 14:14:01,521 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:01,535 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:14:01,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01 WrapperNode [2021-11-19 14:14:01,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:01,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:01,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:14:01,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:14:01,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,654 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-19 14:14:01,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:01,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:14:01,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:14:01,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:14:01,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:14:01,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:14:01,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:14:01,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:14:01,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:01,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:14:01,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:14:01,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:14:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:14:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:14:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:14:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:14:01,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:14:01,924 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:14:02,988 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:14:04,804 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:14:04,805 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:14:04,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:04 BoogieIcfgContainer [2021-11-19 14:14:04,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:14:04,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:14:04,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:14:04,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:14:04,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:14:00" (1/3) ... [2021-11-19 14:14:04,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:04, skipping insertion in model container [2021-11-19 14:14:04,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01" (2/3) ... [2021-11-19 14:14:04,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:04, skipping insertion in model container [2021-11-19 14:14:04,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:04" (3/3) ... [2021-11-19 14:14:04,819 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2021-11-19 14:14:04,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:14:04,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:14:04,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:14:04,897 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 [2021-11-19 14:14:04,898 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:14:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-11-19 14:14:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:14:04,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:04,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:14:04,930 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash 885181802, now seen corresponding path program 1 times [2021-11-19 14:14:04,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:14:04,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009685511] [2021-11-19 14:14:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:04,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:14:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:14:05,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:14:05,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009685511] [2021-11-19 14:14:05,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009685511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:05,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:05,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:14:05,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592020822] [2021-11-19 14:14:05,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:05,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:14:05,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:14:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:14:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:14:05,214 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-19 14:14:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:05,307 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-19 14:14:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:14:05,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-19 14:14:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:05,319 INFO L225 Difference]: With dead ends: 23 [2021-11-19 14:14:05,319 INFO L226 Difference]: Without dead ends: 11 [2021-11-19 14:14:05,322 INFO L932 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 [2021-11-19 14:14:05,329 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:05,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:14:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-19 14:14:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-19 14:14:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-11-19 14:14:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-19 14:14:05,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-19 14:14:05,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:05,370 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-19 14:14:05,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-19 14:14:05,370 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-19 14:14:05,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:14:05,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:05,371 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-19 14:14:05,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:14:05,373 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1889500183, now seen corresponding path program 1 times [2021-11-19 14:14:05,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:14:05,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990177306] [2021-11-19 14:14:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:05,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:14:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:14:06,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:14:06,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990177306] [2021-11-19 14:14:06,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990177306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:14:06,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035622768] [2021-11-19 14:14:06,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:06,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:14:06,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:14:06,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:14:06,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:14:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:06,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:14:06,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:14:20,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 14:14:33,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035622768] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:14:33,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:14:33,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 3] total 7 [2021-11-19 14:14:33,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93748266] [2021-11-19 14:14:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:33,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:14:33,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:14:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:14:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:14:33,008 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-19 14:14:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:33,039 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-19 14:14:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:14:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 9 [2021-11-19 14:14:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:33,044 INFO L225 Difference]: With dead ends: 10 [2021-11-19 14:14:33,044 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:14:33,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:14:33,047 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:33,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:14:33,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:14:33,057 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) [2021-11-19 14:14:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:14:33,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-19 14:14:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:33,059 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:14:33,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-19 14:14:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:14:33,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:14:33,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:14:33,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:33,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-19 14:14:33,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:14:33,299 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-19 14:14:33,300 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:14:33,300 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-19 14:14:33,301 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-19 14:14:33,301 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:14:33,302 INFO L854 garLoopResultBuilder]: At program point L124-1(lines 30 584) the Hoare annotation is: (or (not (= 7 ~a19~0)) (not (= ~a10~0 0))) [2021-11-19 14:14:33,302 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-19 14:14:33,302 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= 7 ~a19~0)) (not (= ~a10~0 0))) [2021-11-19 14:14:33,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-19 14:14:33,306 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:14:33,308 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:14:33,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:14:33 BoogieIcfgContainer [2021-11-19 14:14:33,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:14:33,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:14:33,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:14:33,335 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:14:33,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:04" (3/4) ... [2021-11-19 14:14:33,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:14:33,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 185 nodes and edges [2021-11-19 14:14:33,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-19 14:14:33,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-19 14:14:33,382 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:14:33,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:14:33,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:14:33,531 INFO L158 Benchmark]: Toolchain (without parser) took 32693.09ms. Allocated memory was 88.1MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 49.7MB in the beginning and 757.7MB in the end (delta: -708.0MB). Peak memory consumption was 984.1MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,531 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:14:33,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.80ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 49.5MB in the beginning and 74.1MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.23ms. Allocated memory is still 115.3MB. Free memory was 74.1MB in the beginning and 66.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,532 INFO L158 Benchmark]: Boogie Preprocessor took 108.49ms. Allocated memory is still 115.3MB. Free memory was 66.2MB in the beginning and 61.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,533 INFO L158 Benchmark]: RCFGBuilder took 3043.76ms. Allocated memory was 115.3MB in the beginning and 283.1MB in the end (delta: 167.8MB). Free memory was 61.2MB in the beginning and 151.2MB in the end (delta: -89.9MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,533 INFO L158 Benchmark]: TraceAbstraction took 28524.73ms. Allocated memory was 283.1MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 151.2MB in the beginning and 773.4MB in the end (delta: -622.3MB). Peak memory consumption was 875.1MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,534 INFO L158 Benchmark]: Witness Printer took 195.77ms. Allocated memory is still 1.8GB. Free memory was 773.4MB in the beginning and 757.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 14:14:33,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.80ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 49.5MB in the beginning and 74.1MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.23ms. Allocated memory is still 115.3MB. Free memory was 74.1MB in the beginning and 66.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.49ms. Allocated memory is still 115.3MB. Free memory was 66.2MB in the beginning and 61.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3043.76ms. Allocated memory was 115.3MB in the beginning and 283.1MB in the end (delta: 167.8MB). Free memory was 61.2MB in the beginning and 151.2MB in the end (delta: -89.9MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. * TraceAbstraction took 28524.73ms. Allocated memory was 283.1MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 151.2MB in the beginning and 773.4MB in the end (delta: -622.3MB). Peak memory consumption was 875.1MB. Max. memory is 16.1GB. * Witness Printer took 195.77ms. Allocated memory is still 1.8GB. Free memory was 773.4MB in the beginning and 757.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 125]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 27.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 5 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: !(7 == a19) || !(a10 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(7 == a19) || !(a10 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 14:14:33,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b12565-08a9-47dc-8245-c1a8e63bdb9c/bin/utaipan-UbGMyvGFUs/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