./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:57:36,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:57:36,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:57:36,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:57:36,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:57:36,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:57:36,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:57:36,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:57:36,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:57:36,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:57:36,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:57:36,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:57:36,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:57:37,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:57:37,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:57:37,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:57:37,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:57:37,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:57:37,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:57:37,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:57:37,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:57:37,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:57:37,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:57:37,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:57:37,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:57:37,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:57:37,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:57:37,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:57:37,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:57:37,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:57:37,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:57:37,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:57:37,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:57:37,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:57:37,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:57:37,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:57:37,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:57:37,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:57:37,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:57:37,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:57:37,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:57:37,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:57:37,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:57:37,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:57:37,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:57:37,125 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:57:37,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:57:37,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:57:37,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:57:37,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:57:37,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:57:37,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:57:37,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:57:37,136 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:57:37,136 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:57:37,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:57:37,137 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:57:37,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:57:37,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:57:37,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:57:37,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:57:37,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:57:37,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:57:37,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:57:37,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:57:37,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:57:37,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:57:37,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:57:37,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:57:37,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:57:37,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:57:37,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:57:37,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:37,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:57:37,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:57:37,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:57:37,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:57:37,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:57:37,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:57:37,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:57:37,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:57:37,147 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2021-11-07 01:57:37,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:57:37,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:57:37,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:57:37,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:57:37,509 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:57:37,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-11-07 01:57:37,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/c9ccc104d/f1aea02c2a7c4b4f9d597ce6abcd286e/FLAGfab849366 [2021-11-07 01:57:38,137 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:57:38,138 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-11-07 01:57:38,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/c9ccc104d/f1aea02c2a7c4b4f9d597ce6abcd286e/FLAGfab849366 [2021-11-07 01:57:38,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/c9ccc104d/f1aea02c2a7c4b4f9d597ce6abcd286e [2021-11-07 01:57:38,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:57:38,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:57:38,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:38,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:57:38,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:57:38,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:38" (1/1) ... [2021-11-07 01:57:38,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d396c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:38, skipping insertion in model container [2021-11-07 01:57:38,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:38" (1/1) ... [2021-11-07 01:57:38,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:57:38,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:38,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-11-07 01:57:38,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:38,930 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:57:38,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10e4ef19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:38, skipping insertion in model container [2021-11-07 01:57:38,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:38,932 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:57:38,935 INFO L168 Benchmark]: Toolchain (without parser) took 504.88 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.4 MB in the beginning and 102.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:57:38,936 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:57:38,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.60 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.1 MB in the beginning and 102.1 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:57:38,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.60 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.1 MB in the beginning and 102.1 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 700]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:57:41,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:57:41,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:57:41,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:57:41,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:57:41,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:57:41,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:57:41,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:57:41,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:57:41,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:57:41,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:57:41,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:57:41,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:57:41,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:57:41,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:57:41,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:57:41,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:57:41,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:57:41,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:57:41,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:57:41,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:57:41,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:57:41,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:57:41,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:57:41,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:57:41,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:57:41,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:57:41,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:57:41,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:57:41,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:57:41,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:57:41,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:57:41,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:57:41,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:57:41,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:57:41,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:57:41,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:57:41,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:57:41,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:57:41,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:57:41,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:57:41,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:57:41,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:57:41,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:57:41,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:57:41,663 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:57:41,663 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:57:41,664 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:57:41,664 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:57:41,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:57:41,665 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:57:41,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:57:41,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:57:41,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:57:41,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:57:41,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:57:41,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:57:41,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:57:41,671 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:57:41,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:57:41,671 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:57:41,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:57:41,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:57:41,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:57:41,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:57:41,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:57:41,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:57:41,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:57:41,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:41,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:57:41,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:57:41,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:57:41,674 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:57:41,674 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:57:41,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:57:41,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:57:41,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:57:41,676 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2021-11-07 01:57:42,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:57:42,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:57:42,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:57:42,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:57:42,087 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:57:42,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-11-07 01:57:42,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/e5c0795ff/703b887655454695a048e997588f59b4/FLAG2676408a4 [2021-11-07 01:57:42,859 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:57:42,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-11-07 01:57:42,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/e5c0795ff/703b887655454695a048e997588f59b4/FLAG2676408a4 [2021-11-07 01:57:43,054 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/data/e5c0795ff/703b887655454695a048e997588f59b4 [2021-11-07 01:57:43,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:57:43,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:57:43,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:43,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:57:43,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:57:43,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:43,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7b86b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43, skipping insertion in model container [2021-11-07 01:57:43,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:43,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:57:43,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:43,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-11-07 01:57:43,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:43,650 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:57:43,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:43,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-11-07 01:57:43,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:43,748 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:57:43,832 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-11-07 01:57:43,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:43,924 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:57:43,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43 WrapperNode [2021-11-07 01:57:43,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:43,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:43,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:57:43,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:57:43,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:43,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:44,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:57:44,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:57:44,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:57:44,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:57:44,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:57:44,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:57:44,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:57:44,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (1/1) ... [2021-11-07 01:57:44,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:44,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:57:44,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:57:44,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:57:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:57:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:57:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:57:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:57:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:57:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:57:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:57:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:57:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:57:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:57:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:57:44,206 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:57:44,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:57:44,701 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-07 01:57:44,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:44 BoogieIcfgContainer [2021-11-07 01:57:44,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:57:44,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:57:44,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:57:44,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:57:44,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:57:43" (1/3) ... [2021-11-07 01:57:44,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713c2afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:44, skipping insertion in model container [2021-11-07 01:57:44,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:43" (2/3) ... [2021-11-07 01:57:44,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713c2afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:44, skipping insertion in model container [2021-11-07 01:57:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:44" (3/3) ... [2021-11-07 01:57:44,711 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-11-07 01:57:44,716 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:57:44,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:57:44,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:57:44,717 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:57:44,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,745 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,746 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,746 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,746 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,747 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,747 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,747 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,747 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,752 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,753 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,753 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,753 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,755 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,755 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,756 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,756 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,757 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,757 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,757 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,758 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,760 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,760 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,760 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,761 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,766 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,766 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,767 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,768 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:57:44,774 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 01:57:44,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:57:44,824 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:57:44,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 01:57:44,846 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:57:44,856 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 103 transitions, 214 flow [2021-11-07 01:57:44,859 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 103 transitions, 214 flow [2021-11-07 01:57:44,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 103 transitions, 214 flow [2021-11-07 01:57:44,905 INFO L129 PetriNetUnfolder]: 9/102 cut-off events. [2021-11-07 01:57:44,906 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 01:57:44,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 9/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2021-11-07 01:57:44,912 INFO L116 LiptonReduction]: Number of co-enabled transitions 1452 [2021-11-07 01:58:06,042 INFO L131 LiptonReduction]: Checked pairs total: 2590 [2021-11-07 01:58:06,042 INFO L133 LiptonReduction]: Total number of compositions: 91 [2021-11-07 01:58:06,057 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 30 transitions, 68 flow [2021-11-07 01:58:06,068 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52 states, 51 states have (on average 2.6862745098039214) internal successors, (137), 51 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 51 states have (on average 2.6862745098039214) internal successors, (137), 51 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:58:06,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:06,080 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:58:06,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:58:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash 375121175, now seen corresponding path program 1 times [2021-11-07 01:58:06,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:06,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613966617] [2021-11-07 01:58:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:06,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:06,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:06,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:06,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:58:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:06,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:58:06,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:06,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 124 [2021-11-07 01:58:07,293 INFO L354 Elim1Store]: treesize reduction 989, result has 6.0 percent of original size [2021-11-07 01:58:07,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 124 treesize of output 144 [2021-11-07 01:58:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:10,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:12,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:12,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613966617] [2021-11-07 01:58:12,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613966617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:12,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:12,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-07 01:58:12,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938465881] [2021-11-07 01:58:12,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:12,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2021-11-07 01:58:12,388 INFO L87 Difference]: Start difference. First operand has 52 states, 51 states have (on average 2.6862745098039214) internal successors, (137), 51 states have internal predecessors, (137), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:24,661 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2021-11-07 01:58:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:24,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 01:58:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:24,679 INFO L225 Difference]: With dead ends: 54 [2021-11-07 01:58:24,680 INFO L226 Difference]: Without dead ends: 38 [2021-11-07 01:58:24,681 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2021-11-07 01:58:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-07 01:58:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-07 01:58:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-11-07 01:58:24,729 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2021-11-07 01:58:24,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:24,731 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-11-07 01:58:24,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:24,732 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-11-07 01:58:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:58:24,735 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:24,736 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:24,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:24,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:24,954 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:58:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1051339625, now seen corresponding path program 1 times [2021-11-07 01:58:24,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:24,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616451334] [2021-11-07 01:58:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:24,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:24,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:24,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:24,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:58:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:25,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:25,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:25,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 01:58:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:25,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:25,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:25,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616451334] [2021-11-07 01:58:25,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616451334] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:25,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:25,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:58:25,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36506373] [2021-11-07 01:58:25,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:58:25,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:58:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:25,165 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand has 3 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) [2021-11-07 01:58:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:25,218 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2021-11-07 01:58:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:58:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2021-11-07 01:58:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:25,220 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:58:25,220 INFO L226 Difference]: Without dead ends: 33 [2021-11-07 01:58:25,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:25,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-07 01:58:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-11-07 01:58:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 26 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 38 transitions. [2021-11-07 01:58:25,225 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 38 transitions. Word has length 9 [2021-11-07 01:58:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:25,226 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-11-07 01:58:25,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2021-11-07 01:58:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-07 01:58:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:58:25,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:25,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:25,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:25,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:25,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:58:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1772843625, now seen corresponding path program 1 times [2021-11-07 01:58:25,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:25,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381286685] [2021-11-07 01:58:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:25,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:25,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:25,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:25,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:58:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:25,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:58:25,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:25,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-07 01:58:25,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 01:58:25,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-07 01:58:25,870 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-07 01:58:25,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 39 [2021-11-07 01:58:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:26,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:29,313 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#__global_lock~0.offset| (_ BitVec 32))) (not (= (_ bv0 1) (bvneg (select (select (store |c_#pthreadsMutex| |c_~#__global_lock~0.base| (store (select |c_#pthreadsMutex| |c_~#__global_lock~0.base|) |~#__global_lock~0.offset| (_ bv0 1))) |c_~#mutex1~0.base|) |c_~#mutex1~0.offset|))))) is different from false [2021-11-07 01:58:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:29,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:29,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381286685] [2021-11-07 01:58:29,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381286685] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:29,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:29,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:58:29,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082112472] [2021-11-07 01:58:29,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:58:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:29,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:58:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=34, Unknown=2, NotChecked=12, Total=72 [2021-11-07 01:58:29,346 INFO L87 Difference]: Start difference. First operand 27 states and 38 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 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) [2021-11-07 01:58:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:39,578 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-11-07 01:58:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:58:39,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 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) Word has length 10 [2021-11-07 01:58:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:39,579 INFO L225 Difference]: With dead ends: 15 [2021-11-07 01:58:39,579 INFO L226 Difference]: Without dead ends: 15 [2021-11-07 01:58:39,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=31, Invalid=43, Unknown=2, NotChecked=14, Total=90 [2021-11-07 01:58:39,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-07 01:58:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-07 01:58:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 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) [2021-11-07 01:58:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2021-11-07 01:58:39,581 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2021-11-07 01:58:39,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:39,581 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2021-11-07 01:58:39,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 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) [2021-11-07 01:58:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2021-11-07 01:58:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:58:39,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:39,582 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:39,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:58:39,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:39,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:58:39,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:39,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1387996211, now seen corresponding path program 1 times [2021-11-07 01:58:39,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:39,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595151650] [2021-11-07 01:58:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:39,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:39,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:39,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:39,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:58:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:39,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:58:39,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:39,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 123 [2021-11-07 01:58:39,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:39,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:39,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:39,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:40,363 INFO L354 Elim1Store]: treesize reduction 923, result has 6.4 percent of original size [2021-11-07 01:58:40,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 123 treesize of output 143 [2021-11-07 01:58:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:58:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:58:49,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:49,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:58:49,829 INFO L354 Elim1Store]: treesize reduction 1194, result has 2.8 percent of original size [2021-11-07 01:58:49,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 42 case distinctions, treesize of input 231 treesize of output 141 [2021-11-07 01:58:52,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:58:52,481 INFO L354 Elim1Store]: treesize reduction 1194, result has 2.8 percent of original size [2021-11-07 01:58:52,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 279 treesize of output 189 [2021-11-07 01:58:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:52,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:53,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:53,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595151650] [2021-11-07 01:58:53,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595151650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:53,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:53,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 3] imperfect sequences [] total 8 [2021-11-07 01:58:53,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923768343] [2021-11-07 01:58:53,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:58:53,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:53,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:58:53,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:58:53,772 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:00,248 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-07 01:59:00,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:59:00,249 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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 14 [2021-11-07 01:59:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:00,250 INFO L225 Difference]: With dead ends: 14 [2021-11-07 01:59:00,250 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:59:00,250 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:59:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:59:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:59:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:59:00,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-07 01:59:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:00,251 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:59:00,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:59:00,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:59:00,254 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:59:00,254 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:59:00,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:00,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:00,456 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 01:59:00,458 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:59:00,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:59:00,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:59:00 BasicIcfg [2021-11-07 01:59:00,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:59:00,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:59:00,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:59:00,460 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:59:00,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:44" (3/4) ... [2021-11-07 01:59:00,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:59:00,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-07 01:59:00,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-07 01:59:00,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 01:59:00,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:59:00,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:59:00,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:59:00,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:59:00,529 INFO L168 Benchmark]: Toolchain (without parser) took 77463.83 ms. Allocated memory was 52.4 MB in the beginning and 100.7 MB in the end (delta: 48.2 MB). Free memory was 28.5 MB in the beginning and 49.3 MB in the end (delta: -20.8 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,530 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:59:00,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.83 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 44.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.13 ms. Allocated memory is still 69.2 MB. Free memory was 44.6 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,532 INFO L168 Benchmark]: Boogie Preprocessor took 80.98 ms. Allocated memory is still 69.2 MB. Free memory was 42.5 MB in the beginning and 40.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,532 INFO L168 Benchmark]: RCFGBuilder took 606.16 ms. Allocated memory is still 69.2 MB. Free memory was 40.6 MB in the beginning and 41.5 MB in the end (delta: -920.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,533 INFO L168 Benchmark]: TraceAbstraction took 75754.69 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 41.1 MB in the beginning and 52.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,535 INFO L168 Benchmark]: Witness Printer took 68.09 ms. Allocated memory is still 100.7 MB. Free memory was 52.2 MB in the beginning and 49.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:59:00,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 857.83 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 44.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.13 ms. Allocated memory is still 69.2 MB. Free memory was 44.6 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.98 ms. Allocated memory is still 69.2 MB. Free memory was 42.5 MB in the beginning and 40.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 606.16 ms. Allocated memory is still 69.2 MB. Free memory was 40.6 MB in the beginning and 41.5 MB in the end (delta: -920.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 75754.69 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 41.1 MB in the beginning and 52.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 68.09 ms. Allocated memory is still 100.7 MB. Free memory was 52.2 MB in the beginning and 49.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.1s, 98 PlacesBefore, 25 PlacesAfterwards, 103 TransitionsBefore, 30 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 91 TotalNumberOfCompositions, 2590 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1613, positive: 1512, positive conditional: 0, positive unconditional: 1512, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1074, positive: 1036, positive conditional: 0, positive unconditional: 1036, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1074, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 115, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 733, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 623, negative conditional: 0, negative unconditional: 623, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1613, positive: 476, positive conditional: 0, positive unconditional: 476, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 1074, unknown conditional: 0, unknown unconditional: 1074] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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: 691]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 124 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 75.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 27 SDslu, 52 SDs, 0 SdLazy, 69 SolverSat, 16 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 24.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 20 QuantifiedInterpolants, 6343 SizeOfPredicates, 35 NumberOfNonLiveVariables, 422 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-07 01:59:00,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc34d0c-7546-41ab-baa2-3c240c22e5bf/bin/utaipan-UUZaoUuFF8/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