./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/parity.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/parity.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7c1c6c2f4d5b2d24ba57b817b67aabcbf492bd9ab5f9a13bcbf3c0241dcb4b3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:07:45,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:07:45,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:07:45,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:07:45,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:07:45,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:07:45,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:07:45,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:07:45,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:07:45,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:07:45,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:07:45,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:07:45,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:07:45,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:07:45,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:07:45,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:07:45,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:07:45,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:07:45,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:07:45,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:07:45,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:07:45,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:07:45,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:07:45,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:07:45,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:07:45,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:07:45,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:07:45,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:07:45,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:07:45,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:07:45,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:07:45,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:07:45,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:07:45,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:07:45,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:07:45,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:07:45,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:07:45,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:07:45,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:07:45,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:07:45,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:07:45,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:07:45,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:07:45,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:07:45,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:07:45,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:07:45,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:07:45,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:07:45,930 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:07:45,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:07:45,930 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:07:45,930 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:07:45,932 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:07:45,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:07:45,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:07:45,932 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:07:45,933 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:07:45,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:07:45,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:07:45,933 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:07:45,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:07:45,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:07:45,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:07:45,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:07:45,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:07:45,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:07:45,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:07:45,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:07:45,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:07:45,938 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:07:45,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:07:45,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:07:45,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:07:45,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:07:45,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:07:45,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:07:45,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:07:45,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:07:45,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:07:45,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:07:45,941 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:07:45,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:07:45,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:07:45,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:07:45,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:07:45,942 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_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7c1c6c2f4d5b2d24ba57b817b67aabcbf492bd9ab5f9a13bcbf3c0241dcb4b3 [2021-11-21 00:07:46,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:07:46,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:07:46,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:07:46,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:07:46,237 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:07:46,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/bitvector/parity.i [2021-11-21 00:07:46,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/data/a632e7ff6/c9a746b8c2d04cf191785de511154c11/FLAG7406ed4cd [2021-11-21 00:07:46,769 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:07:46,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/sv-benchmarks/c/bitvector/parity.i [2021-11-21 00:07:46,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/data/a632e7ff6/c9a746b8c2d04cf191785de511154c11/FLAG7406ed4cd [2021-11-21 00:07:47,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/data/a632e7ff6/c9a746b8c2d04cf191785de511154c11 [2021-11-21 00:07:47,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:07:47,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:07:47,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:07:47,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:07:47,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:07:47,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdcc93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47, skipping insertion in model container [2021-11-21 00:07:47,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:07:47,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:07:47,348 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_91272b65-2baa-4051-b79a-b71f69dc09ed/sv-benchmarks/c/bitvector/parity.i[1162,1175] [2021-11-21 00:07:47,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:07:47,369 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:07:47,381 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_91272b65-2baa-4051-b79a-b71f69dc09ed/sv-benchmarks/c/bitvector/parity.i[1162,1175] [2021-11-21 00:07:47,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:07:47,401 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:07:47,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47 WrapperNode [2021-11-21 00:07:47,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:07:47,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:07:47,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:07:47,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:07:47,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,447 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-11-21 00:07:47,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:07:47,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:07:47,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:07:47,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:07:47,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:07:47,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:07:47,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:07:47,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:07:47,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (1/1) ... [2021-11-21 00:07:47,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:07:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:07:47,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:07:47,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:07:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:07:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:07:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:07:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:07:47,640 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:07:47,641 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:07:47,753 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:07:47,791 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:07:47,791 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:07:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:47 BoogieIcfgContainer [2021-11-21 00:07:47,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:07:47,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:07:47,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:07:47,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:07:47,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:07:47" (1/3) ... [2021-11-21 00:07:47,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be241de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:47, skipping insertion in model container [2021-11-21 00:07:47,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:47" (2/3) ... [2021-11-21 00:07:47,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be241de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:47, skipping insertion in model container [2021-11-21 00:07:47,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:47" (3/3) ... [2021-11-21 00:07:47,803 INFO L111 eAbstractionObserver]: Analyzing ICFG parity.i [2021-11-21 00:07:47,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:07:47,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2021-11-21 00:07:47,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be241de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:07:47, skipping insertion in model container [2021-11-21 00:07:47,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:07:47,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:07:47,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:07:47,812 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:07:47,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:47" (3/3) ... [2021-11-21 00:07:47,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:07:47,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-21 00:07:47,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-21 00:07:47,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 00:07:47,826 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:07:47,870 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:07:47,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:07:47,877 INFO L158 Benchmark]: Toolchain (without parser) took 742.17ms. Allocated memory is still 125.8MB. Free memory was 89.7MB in the beginning and 83.9MB in the end (delta: 5.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,877 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:07:47,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.28ms. Allocated memory is still 125.8MB. Free memory was 89.7MB in the beginning and 101.2MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.13ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:07:47,881 INFO L158 Benchmark]: Boogie Preprocessor took 35.45ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 98.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,886 INFO L158 Benchmark]: RCFGBuilder took 309.86ms. Allocated memory is still 125.8MB. Free memory was 98.6MB in the beginning and 87.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,886 INFO L158 Benchmark]: TraceAbstraction took 14.59ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 872.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,887 INFO L158 Benchmark]: Witness Printer took 63.90ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 83.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:07:47,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.28ms. Allocated memory is still 125.8MB. Free memory was 89.7MB in the beginning and 101.2MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.13ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.45ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 98.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.86ms. Allocated memory is still 125.8MB. Free memory was 98.6MB in the beginning and 87.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14.59ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 872.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 63.90ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 83.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2021-11-21 00:07:47,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91272b65-2baa-4051-b79a-b71f69dc09ed/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE