./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI --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 df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 --- 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-5e519f3 [2022-11-03 02:49:23,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:49:23,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:49:23,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:49:23,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:49:23,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:49:23,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:49:23,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:49:23,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:49:23,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:49:23,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:49:23,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:49:23,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:49:23,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:49:23,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:49:23,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:49:23,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:49:23,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:49:23,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:49:23,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:49:23,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:49:23,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:49:23,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:49:23,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:49:23,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:49:23,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:49:23,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:49:23,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:49:23,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:49:23,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:49:23,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:49:23,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:49:23,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:49:23,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:49:23,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:49:23,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:49:23,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:49:23,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:49:23,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:49:23,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:49:23,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:49:23,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:49:23,931 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:49:23,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:49:23,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:49:23,932 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:49:23,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:49:23,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:49:23,933 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:49:23,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:49:23,934 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:49:23,934 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:49:23,934 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:49:23,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:49:23,935 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:49:23,935 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:49:23,935 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:49:23,936 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:49:23,936 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:49:23,936 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:49:23,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:49:23,937 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:49:23,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:49:23,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:49:23,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:49:23,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:49:23,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:49:23,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:49:23,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:49:23,939 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:49:23,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:49:23,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:49:23,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:49:23,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:49:23,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:49:23,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:49:23,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:49:23,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:49:23,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:49:23,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:49:23,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:49:23,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:49:23,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:49:23,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:49:23,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:49:23,953 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_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 [2022-11-03 02:49:24,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:49:24,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:49:24,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:49:24,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:49:24,231 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:49:24,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2022-11-03 02:49:24,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/data/2d189e418/d341b3c3bced4a8b97de576a30a28b76/FLAG93aa4d696 [2022-11-03 02:49:24,827 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:49:24,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2022-11-03 02:49:24,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/data/2d189e418/d341b3c3bced4a8b97de576a30a28b76/FLAG93aa4d696 [2022-11-03 02:49:25,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/data/2d189e418/d341b3c3bced4a8b97de576a30a28b76 [2022-11-03 02:49:25,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:49:25,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:49:25,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:49:25,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:49:25,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:49:25,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6554fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25, skipping insertion in model container [2022-11-03 02:49:25,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:49:25,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:49:25,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:49:25,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:49:25,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:49:25,792 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:49:25,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25 WrapperNode [2022-11-03 02:49:25,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:49:25,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:49:25,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:49:25,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:49:25,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,864 INFO L138 Inliner]: procedures = 263, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2022-11-03 02:49:25,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:49:25,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:49:25,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:49:25,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:49:25,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,911 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:49:25,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:49:25,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:49:25,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:49:25,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (1/1) ... [2022-11-03 02:49:25,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:49:25,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:49:25,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:49:25,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:49:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:49:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:49:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:49:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:49:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:49:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:49:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 02:49:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 02:49:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:49:26,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:49:26,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:49:26,005 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:49:26,221 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:49:26,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:49:26,367 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:49:26,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:49:26,374 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:49:26,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:49:26 BoogieIcfgContainer [2022-11-03 02:49:26,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:49:26,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:49:26,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:49:26,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:49:26,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:49:25" (1/3) ... [2022-11-03 02:49:26,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbd9aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:49:26, skipping insertion in model container [2022-11-03 02:49:26,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:25" (2/3) ... [2022-11-03 02:49:26,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbd9aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:49:26, skipping insertion in model container [2022-11-03 02:49:26,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:49:26" (3/3) ... [2022-11-03 02:49:26,386 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_15-funarg_nr.i [2022-11-03 02:49:26,395 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:49:26,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:49:26,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 02:49:26,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:49:26,484 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 02:49:26,534 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:49:26,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 83 transitions, 174 flow [2022-11-03 02:49:26,560 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 83 transitions, 174 flow [2022-11-03 02:49:26,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 174 flow [2022-11-03 02:49:26,629 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-11-03 02:49:26,630 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 02:49:26,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-03 02:49:26,633 INFO L118 LiptonReduction]: Number of co-enabled transitions 528 [2022-11-03 02:49:29,876 INFO L133 LiptonReduction]: Checked pairs total: 1257 [2022-11-03 02:49:29,877 INFO L135 LiptonReduction]: Total number of compositions: 74 [2022-11-03 02:49:29,886 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2022-11-03 02:49:29,910 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 36 states have (on average 2.0) internal successors, (72), 43 states have internal predecessors, (72), 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) [2022-11-03 02:49:29,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:49:29,931 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;@3960d086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:49:29,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-03 02:49:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 36 states have (on average 2.0) internal successors, (72), 43 states have internal predecessors, (72), 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) [2022-11-03 02:49:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 02:49:29,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:29,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 02:49:29,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 02:49:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 279671, now seen corresponding path program 1 times [2022-11-03 02:49:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:29,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952295349] [2022-11-03 02:49:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:49:30,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952295349] [2022-11-03 02:49:30,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952295349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:30,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:30,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:49:30,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622174640] [2022-11-03 02:49:30,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:30,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:30,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:30,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:30,271 INFO L87 Difference]: Start difference. First operand has 44 states, 36 states have (on average 2.0) internal successors, (72), 43 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-03 02:49:30,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:30,327 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2022-11-03 02:49:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:30,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-03 02:49:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:30,340 INFO L225 Difference]: With dead ends: 24 [2022-11-03 02:49:30,340 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 02:49:30,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:30,346 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:30,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:49:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 02:49:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 02:49:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:49:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2022-11-03 02:49:30,382 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 32 transitions. Word has length 3 [2022-11-03 02:49:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:30,382 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-11-03 02:49:30,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-03 02:49:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2022-11-03 02:49:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:49:30,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:30,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:30,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:49:30,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 02:49:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 987731187, now seen corresponding path program 1 times [2022-11-03 02:49:30,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:30,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004211774] [2022-11-03 02:49:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:30,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:49:30,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:30,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004211774] [2022-11-03 02:49:30,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004211774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:30,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:30,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:30,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367186212] [2022-11-03 02:49:30,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:30,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:30,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:30,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:30,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:30,602 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-03 02:49:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:30,632 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-03 02:49:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:30,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-11-03 02:49:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:30,634 INFO L225 Difference]: With dead ends: 16 [2022-11-03 02:49:30,634 INFO L226 Difference]: Without dead ends: 15 [2022-11-03 02:49:30,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:30,637 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:30,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:49:30,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-03 02:49:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-03 02:49:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 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) [2022-11-03 02:49:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-03 02:49:30,646 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-03 02:49:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:30,647 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-03 02:49:30,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-03 02:49:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-03 02:49:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:49:30,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:30,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:30,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:49:30,650 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 02:49:30,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash 559475723, now seen corresponding path program 1 times [2022-11-03 02:49:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:30,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669110765] [2022-11-03 02:49:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:30,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:49:30,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:30,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669110765] [2022-11-03 02:49:30,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669110765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:30,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:30,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:49:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172145462] [2022-11-03 02:49:30,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:30,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:49:30,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:30,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:49:30,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:49:30,829 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-03 02:49:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:30,858 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-03 02:49:30,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:49:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Word has length 9 [2022-11-03 02:49:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:30,859 INFO L225 Difference]: With dead ends: 14 [2022-11-03 02:49:30,860 INFO L226 Difference]: Without dead ends: 14 [2022-11-03 02:49:30,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:49:30,863 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:30,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:49:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-03 02:49:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-03 02:49:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-11-03 02:49:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-03 02:49:30,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2022-11-03 02:49:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:30,870 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-03 02:49:30,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-03 02:49:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-03 02:49:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:49:30,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:30,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:30,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:49:30,873 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 02:49:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash 559475725, now seen corresponding path program 1 times [2022-11-03 02:49:30,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:30,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290400822] [2022-11-03 02:49:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:49:30,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290400822] [2022-11-03 02:49:30,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290400822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:30,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:30,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:49:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470060739] [2022-11-03 02:49:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:30,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:49:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:49:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:49:30,950 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-03 02:49:30,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:30,970 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-03 02:49:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:49:30,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Word has length 9 [2022-11-03 02:49:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:30,971 INFO L225 Difference]: With dead ends: 13 [2022-11-03 02:49:30,971 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:49:30,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:49:30,974 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:30,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:49:30,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:49:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:49:30,978 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) [2022-11-03 02:49:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:49:30,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-03 02:49:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:30,978 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:49:30,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-03 02:49:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:49:30,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:49:30,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-03 02:49:30,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-03 02:49:30,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-03 02:49:30,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-03 02:49:30,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-03 02:49:30,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-03 02:49:30,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-03 02:49:30,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:49:30,986 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 02:49:30,994 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:49:30,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:49:31,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:49:31 BasicIcfg [2022-11-03 02:49:31,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:49:31,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:49:31,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:49:31,002 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:49:31,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:49:26" (3/4) ... [2022-11-03 02:49:31,009 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:49:31,015 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-03 02:49:31,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 02:49:31,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-03 02:49:31,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:49:31,057 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:49:31,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:49:31,058 INFO L158 Benchmark]: Toolchain (without parser) took 5931.54ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 74.0MB in the beginning and 65.2MB in the end (delta: 8.9MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,058 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:49:31,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.70ms. Allocated memory is still 96.5MB. Free memory was 74.0MB in the beginning and 55.4MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.82ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,059 INFO L158 Benchmark]: Boogie Preprocessor took 52.62ms. Allocated memory is still 96.5MB. Free memory was 52.9MB in the beginning and 51.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:49:31,059 INFO L158 Benchmark]: RCFGBuilder took 457.99ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 38.3MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,060 INFO L158 Benchmark]: TraceAbstraction took 4621.57ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 37.6MB in the beginning and 67.3MB in the end (delta: -29.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,060 INFO L158 Benchmark]: Witness Printer took 56.25ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:49:31,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.70ms. Allocated memory is still 96.5MB. Free memory was 74.0MB in the beginning and 55.4MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.82ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.62ms. Allocated memory is still 96.5MB. Free memory was 52.9MB in the beginning and 51.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 457.99ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 38.3MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4621.57ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 37.6MB in the beginning and 67.3MB in the end (delta: -29.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 56.25ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 87 PlacesBefore, 21 PlacesAfterwards, 83 TransitionsBefore, 17 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 1257 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 789, positive: 668, positive conditional: 0, positive unconditional: 668, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 427, positive: 393, positive conditional: 0, positive unconditional: 393, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 427, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 789, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 427, unknown conditional: 0, unknown unconditional: 427] , 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 - 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: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 1 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-11-03 02:49:31,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91f4ca8-16ae-4e7e-9f5d-e02d8348ede5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE