./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:40:39,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:40:39,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:40:39,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:40:39,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:40:39,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:40:39,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:40:39,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:40:39,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:40:39,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:40:39,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:40:39,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:40:39,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:40:39,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:40:39,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:40:39,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:40:39,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:40:39,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:40:39,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:40:39,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:40:39,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:40:39,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:40:39,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:40:39,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:40:39,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:40:39,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:40:39,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:40:39,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:40:39,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:40:39,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:40:39,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:40:40,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:40:40,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:40:40,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:40:40,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:40:40,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:40:40,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:40:40,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:40:40,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:40:40,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:40:40,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:40:40,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:40:40,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:40:40,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:40:40,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:40:40,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:40:40,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:40:40,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:40:40,068 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:40:40,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:40:40,068 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:40:40,068 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:40:40,070 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:40:40,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:40:40,070 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:40:40,070 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:40:40,071 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:40:40,071 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:40:40,071 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:40:40,071 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:40:40,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:40:40,073 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:40:40,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:40:40,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:40:40,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:40:40,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:40:40,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:40:40,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:40:40,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:40:40,075 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:40:40,075 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:40:40,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:40:40,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:40:40,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:40:40,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:40:40,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:40:40,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:40:40,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:40:40,079 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:40:40,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:40:40,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:40:40,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:40:40,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:40:40,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:40:40,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:40:40,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-25 22:40:40,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:40:40,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:40:40,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:40:40,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:40:40,431 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:40:40,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-25 22:40:44,065 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:40:44,495 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:40:44,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-25 22:40:44,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/data/198165fd4/116c68da308e4bfe822897492fa80572/FLAGa155499e1 [2022-11-25 22:40:44,541 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/data/198165fd4/116c68da308e4bfe822897492fa80572 [2022-11-25 22:40:44,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:40:44,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:40:44,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:40:44,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:40:44,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:40:44,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:40:44" (1/1) ... [2022-11-25 22:40:44,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67cea5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:44, skipping insertion in model container [2022-11-25 22:40:44,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:40:44" (1/1) ... [2022-11-25 22:40:44,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:40:44,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:40:45,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:40:45,493 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:40:45,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:40:45,637 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:40:45,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45 WrapperNode [2022-11-25 22:40:45,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:40:45,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:40:45,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:40:45,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:40:45,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,713 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 22:40:45,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:40:45,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:40:45,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:40:45,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:40:45,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:40:45,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:40:45,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:40:45,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:40:45,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (1/1) ... [2022-11-25 22:40:45,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:40:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:40:45,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:40:45,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:40:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:40:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:40:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:40:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:40:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:40:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:40:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:40:45,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:40:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:40:45,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:40:45,880 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:40:46,087 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:40:46,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:40:46,289 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:40:46,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:40:46,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:40:46,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:40:46 BoogieIcfgContainer [2022-11-25 22:40:46,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:40:46,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:40:46,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:40:46,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:40:46,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:40:44" (1/3) ... [2022-11-25 22:40:46,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfecd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:40:46, skipping insertion in model container [2022-11-25 22:40:46,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:45" (2/3) ... [2022-11-25 22:40:46,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfecd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:40:46, skipping insertion in model container [2022-11-25 22:40:46,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:40:46" (3/3) ... [2022-11-25 22:40:46,312 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-25 22:40:46,323 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:40:46,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:40:46,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:40:46,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:40:46,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:40:46,464 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:40:46,481 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 151 flow [2022-11-25 22:40:46,485 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 151 flow [2022-11-25 22:40:46,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 151 flow [2022-11-25 22:40:46,564 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-11-25 22:40:46,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:40:46,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-25 22:40:46,583 INFO L119 LiptonReduction]: Number of co-enabled transitions 1092 [2022-11-25 22:40:50,129 INFO L134 LiptonReduction]: Checked pairs total: 1506 [2022-11-25 22:40:50,130 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-11-25 22:40:50,140 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 35 flow [2022-11-25 22:40:50,164 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:50,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:40:50,193 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1174d5bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:40:50,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-25 22:40:50,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:40:50,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:50,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:40:50,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:50,219 INFO L85 PathProgramCache]: Analyzing trace with hash 8155699, now seen corresponding path program 1 times [2022-11-25 22:40:50,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:50,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604669612] [2022-11-25 22:40:50,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:50,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:51,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:51,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604669612] [2022-11-25 22:40:51,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604669612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:51,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:51,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:40:51,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418129155] [2022-11-25 22:40:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:40:51,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:40:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:40:51,109 INFO L87 Difference]: Start difference. First operand has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:51,234 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2022-11-25 22:40:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:40:51,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 22:40:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:51,248 INFO L225 Difference]: With dead ends: 35 [2022-11-25 22:40:51,249 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 22:40:51,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:40:51,258 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:51,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:40:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 22:40:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-25 22:40:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 48 transitions. [2022-11-25 22:40:51,311 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 48 transitions. Word has length 4 [2022-11-25 22:40:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 48 transitions. [2022-11-25 22:40:51,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2022-11-25 22:40:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:40:51,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:51,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:40:51,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:40:51,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:51,321 INFO L85 PathProgramCache]: Analyzing trace with hash 8155801, now seen corresponding path program 1 times [2022-11-25 22:40:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:51,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357517824] [2022-11-25 22:40:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:51,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:51,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:51,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357517824] [2022-11-25 22:40:51,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357517824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:51,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:51,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:40:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972585333] [2022-11-25 22:40:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:51,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:40:51,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:40:51,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:40:51,767 INFO L87 Difference]: Start difference. First operand 32 states and 48 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:51,850 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2022-11-25 22:40:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:40:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 22:40:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:51,853 INFO L225 Difference]: With dead ends: 26 [2022-11-25 22:40:51,853 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 22:40:51,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:40:51,855 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:40:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 22:40:51,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 22:40:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-11-25 22:40:51,862 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 4 [2022-11-25 22:40:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:51,862 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-11-25 22:40:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-11-25 22:40:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:40:51,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:51,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:51,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:40:51,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:51,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1846348716, now seen corresponding path program 1 times [2022-11-25 22:40:51,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:51,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265341395] [2022-11-25 22:40:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:51,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:52,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:52,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265341395] [2022-11-25 22:40:52,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265341395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:52,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:52,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:40:52,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829557157] [2022-11-25 22:40:52,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:52,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:40:52,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:40:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:40:52,228 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-25 22:40:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:52,285 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-11-25 22:40:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:40:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 7 [2022-11-25 22:40:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:52,287 INFO L225 Difference]: With dead ends: 17 [2022-11-25 22:40:52,287 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 22:40:52,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:40:52,292 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:52,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:40:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 22:40:52,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 22:40:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-11-25 22:40:52,300 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 7 [2022-11-25 22:40:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:52,300 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-11-25 22:40:52,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-25 22:40:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-11-25 22:40:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:40:52,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:52,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:52,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:40:52,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:52,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:52,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1402235895, now seen corresponding path program 1 times [2022-11-25 22:40:52,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:52,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738729619] [2022-11-25 22:40:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:53,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:53,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738729619] [2022-11-25 22:40:53,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738729619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:53,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:53,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:40:53,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678149074] [2022-11-25 22:40:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:53,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:40:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:40:53,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:40:53,078 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:53,198 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-11-25 22:40:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:40:53,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-25 22:40:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:53,200 INFO L225 Difference]: With dead ends: 16 [2022-11-25 22:40:53,201 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 22:40:53,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:40:53,202 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:53,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:40:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 22:40:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 22:40:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-11-25 22:40:53,205 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 8 [2022-11-25 22:40:53,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:53,206 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-11-25 22:40:53,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-11-25 22:40:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:40:53,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:53,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:53,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:40:53,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1402235910, now seen corresponding path program 1 times [2022-11-25 22:40:53,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:53,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918374920] [2022-11-25 22:40:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:53,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:53,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:53,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918374920] [2022-11-25 22:40:53,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918374920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:53,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:53,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:40:53,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810338238] [2022-11-25 22:40:53,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:53,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:40:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:40:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:40:53,641 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:53,755 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-25 22:40:53,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:40:53,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-25 22:40:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:53,756 INFO L225 Difference]: With dead ends: 15 [2022-11-25 22:40:53,756 INFO L226 Difference]: Without dead ends: 10 [2022-11-25 22:40:53,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:40:53,758 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:53,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:40:53,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-25 22:40:53,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-25 22:40:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-11-25 22:40:53,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 8 [2022-11-25 22:40:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:53,762 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-11-25 22:40:53,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-11-25 22:40:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:40:53,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:53,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:53,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:40:53,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:53,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1327135769, now seen corresponding path program 1 times [2022-11-25 22:40:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:53,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399265282] [2022-11-25 22:40:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:54,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:54,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399265282] [2022-11-25 22:40:54,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399265282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:54,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:54,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:40:54,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581273553] [2022-11-25 22:40:54,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:54,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:40:54,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:40:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:40:54,118 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:54,187 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-11-25 22:40:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:40:54,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-25 22:40:54,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:54,188 INFO L225 Difference]: With dead ends: 9 [2022-11-25 22:40:54,188 INFO L226 Difference]: Without dead ends: 9 [2022-11-25 22:40:54,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:40:54,190 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:54,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:40:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-25 22:40:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-25 22:40:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-25 22:40:54,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-11-25 22:40:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:54,193 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-25 22:40:54,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-25 22:40:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:40:54,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:54,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:54,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:40:54,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:40:54,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1327135765, now seen corresponding path program 1 times [2022-11-25 22:40:54,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:54,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145611493] [2022-11-25 22:40:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:54,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:40:54,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:54,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145611493] [2022-11-25 22:40:54,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145611493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:54,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:54,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:40:54,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812749363] [2022-11-25 22:40:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:54,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:40:54,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:54,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:40:54,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:40:54,704 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:54,776 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-25 22:40:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:40:54,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-25 22:40:54,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:54,777 INFO L225 Difference]: With dead ends: 8 [2022-11-25 22:40:54,777 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:40:54,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:40:54,778 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:54,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:40:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:40:54,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:40:54,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:40:54,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-25 22:40:54,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:54,780 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:40:54,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:40:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:40:54,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:40:54,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-25 22:40:54,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-25 22:40:54,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-25 22:40:54,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-25 22:40:54,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-25 22:40:54,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-25 22:40:54,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-25 22:40:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:40:54,789 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:54,795 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:40:54,795 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:40:54,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:40:54 BasicIcfg [2022-11-25 22:40:54,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:40:54,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:40:54,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:40:54,799 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:40:54,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:40:46" (3/4) ... [2022-11-25 22:40:54,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:40:54,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 22:40:54,820 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-25 22:40:54,820 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 22:40:54,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 22:40:54,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:40:54,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:40:54,858 INFO L158 Benchmark]: Toolchain (without parser) took 10311.52ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 142.5MB in the beginning and 105.7MB in the end (delta: 36.8MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,858 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:40:54,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1090.58ms. Allocated memory is still 190.8MB. Free memory was 141.9MB in the beginning and 105.7MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.14ms. Allocated memory is still 190.8MB. Free memory was 105.4MB in the beginning and 102.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,859 INFO L158 Benchmark]: Boogie Preprocessor took 48.28ms. Allocated memory is still 190.8MB. Free memory was 102.7MB in the beginning and 101.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:40:54,860 INFO L158 Benchmark]: RCFGBuilder took 535.78ms. Allocated memory is still 190.8MB. Free memory was 101.5MB in the beginning and 152.3MB in the end (delta: -50.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,860 INFO L158 Benchmark]: TraceAbstraction took 8495.30ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 151.3MB in the beginning and 108.8MB in the end (delta: 42.5MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,861 INFO L158 Benchmark]: Witness Printer took 58.26ms. Allocated memory is still 230.7MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:40:54,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1090.58ms. Allocated memory is still 190.8MB. Free memory was 141.9MB in the beginning and 105.7MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.14ms. Allocated memory is still 190.8MB. Free memory was 105.4MB in the beginning and 102.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.28ms. Allocated memory is still 190.8MB. Free memory was 102.7MB in the beginning and 101.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.78ms. Allocated memory is still 190.8MB. Free memory was 101.5MB in the beginning and 152.3MB in the end (delta: -50.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8495.30ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 151.3MB in the beginning and 108.8MB in the end (delta: 42.5MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Witness Printer took 58.26ms. Allocated memory is still 230.7MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 77 PlacesBefore, 19 PlacesAfterwards, 73 TransitionsBefore, 15 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 1506 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1150, independent: 1054, independent conditional: 0, independent unconditional: 1054, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 776, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 776, independent: 740, independent conditional: 0, independent unconditional: 740, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1150, independent: 306, independent conditional: 0, independent unconditional: 306, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 776, unknown conditional: 0, unknown unconditional: 776] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 0 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 42, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 22:40:54,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f6d6b8-3d68-4b70-9c10-aea7eb664f5e/bin/utaipan-ByfvJB40ur/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