./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs --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 967b3d140c0ca29282ba489179f4ea81c1f2f6e3 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs --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 967b3d140c0ca29282ba489179f4ea81c1f2f6e3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:13:50,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:13:50,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:13:50,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:13:50,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:13:50,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:13:50,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:13:50,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:13:50,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:13:50,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:13:50,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:13:50,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:13:50,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:13:50,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:13:50,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:13:50,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:13:50,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:13:50,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:13:50,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:13:50,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:13:50,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:13:50,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:13:50,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:13:50,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:13:50,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:13:50,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:13:50,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:13:50,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:13:50,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:13:50,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:13:50,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:13:50,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:13:50,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:13:50,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:13:50,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:13:50,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:13:50,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:13:50,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:13:50,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:13:50,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:13:50,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:13:50,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:13:50,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:13:50,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:13:50,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:13:50,928 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:13:50,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:13:50,929 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:13:50,929 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:13:50,929 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:13:50,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:13:50,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:13:50,931 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:13:50,931 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:13:50,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:13:50,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:13:50,932 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:13:50,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:13:50,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:13:50,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:13:50,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:13:50,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:13:50,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:13:50,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:13:50,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:13:50,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:13:50,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:13:50,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:13:50,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:13:50,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:13:50,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:13:50,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:13:50,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:50,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:13:50,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:13:50,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:13:50,943 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:13:50,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:13:50,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:13:50,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:13:50,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:13:50,944 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_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 967b3d140c0ca29282ba489179f4ea81c1f2f6e3 [2021-10-16 02:13:51,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:13:51,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:13:51,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:13:51,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:13:51,284 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:13:51,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-10-16 02:13:51,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/e9de92ce9/8722d39986a040589154e6fb9c68aff9/FLAGeeb7a7612 [2021-10-16 02:13:51,808 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:13:51,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-10-16 02:13:51,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/e9de92ce9/8722d39986a040589154e6fb9c68aff9/FLAGeeb7a7612 [2021-10-16 02:13:52,184 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/e9de92ce9/8722d39986a040589154e6fb9c68aff9 [2021-10-16 02:13:52,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:13:52,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:13:52,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:52,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:13:52,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:13:52,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:52" (1/1) ... [2021-10-16 02:13:52,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a568ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:52, skipping insertion in model container [2021-10-16 02:13:52,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:52" (1/1) ... [2021-10-16 02:13:52,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:13:52,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:52,443 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_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[3603,3616] [2021-10-16 02:13:52,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:52,466 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) [2021-10-16 02:13:52,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d8c49ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:52, skipping insertion in model container [2021-10-16 02:13:52,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:52,468 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:13:52,470 INFO L168 Benchmark]: Toolchain (without parser) took 280.17 ms. Allocated memory is still 96.5 MB. Free memory was 55.2 MB in the beginning and 70.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:52,471 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory is still 71.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:52,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.87 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 70.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:52,473 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 96.5 MB. Free memory is still 71.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.87 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 70.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 137]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:13:54,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:13:54,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:13:54,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:13:54,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:13:54,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:13:54,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:13:54,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:13:54,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:13:54,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:13:54,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:13:54,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:13:54,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:13:54,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:13:54,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:13:54,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:13:54,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:13:54,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:13:54,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:13:54,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:13:54,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:13:54,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:13:54,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:13:54,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:13:54,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:13:54,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:13:54,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:13:54,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:13:54,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:13:54,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:13:54,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:13:54,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:13:54,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:13:54,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:13:54,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:13:54,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:13:54,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:13:54,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:13:54,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:13:54,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:13:54,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:13:54,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:13:54,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:13:54,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:13:54,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:13:54,952 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:13:54,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:13:54,952 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:13:54,952 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:13:54,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:13:54,953 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:13:54,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:13:54,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:13:54,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:13:54,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:13:54,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:13:54,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:13:54,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:13:54,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:13:54,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:13:54,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:13:54,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:54,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:13:54,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:13:54,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:13:54,960 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:13:54,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:13:54,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:13:54,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:13:54,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:13:54,961 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_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 967b3d140c0ca29282ba489179f4ea81c1f2f6e3 [2021-10-16 02:13:55,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:13:55,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:13:55,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:13:55,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:13:55,376 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:13:55,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-10-16 02:13:55,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/a040a7250/731cbd4bcdad4763b5cba80fe76ddeea/FLAGfd2bfb385 [2021-10-16 02:13:55,962 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:13:55,965 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-10-16 02:13:55,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/a040a7250/731cbd4bcdad4763b5cba80fe76ddeea/FLAGfd2bfb385 [2021-10-16 02:13:56,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/data/a040a7250/731cbd4bcdad4763b5cba80fe76ddeea [2021-10-16 02:13:56,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:13:56,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:13:56,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:56,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:13:56,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:13:56,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491a7a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56, skipping insertion in model container [2021-10-16 02:13:56,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:13:56,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:56,693 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_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[3603,3616] [2021-10-16 02:13:56,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:56,740 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:13:56,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:56,791 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_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[3603,3616] [2021-10-16 02:13:56,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:56,812 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:13:56,862 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_57e48ad2-2461-4184-a407-4f22aea90fcc/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[3603,3616] [2021-10-16 02:13:56,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:56,883 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:13:56,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56 WrapperNode [2021-10-16 02:13:56,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:56,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:56,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:13:56,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:13:56,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:56,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:13:56,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:13:56,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:13:56,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:56,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:57,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:57,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:57,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:57,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:13:57,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:13:57,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:13:57,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:13:57,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (1/1) ... [2021-10-16 02:13:57,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:57,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:13:57,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:13:57,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:13:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:13:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:13:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:13:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:13:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:13:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:13:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:13:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-16 02:13:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-16 02:13:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-16 02:13:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-16 02:13:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:13:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:13:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:13:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:13:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:13:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:13:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:13:57,128 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:13:58,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:13:58,616 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-16 02:13:58,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:58 BoogieIcfgContainer [2021-10-16 02:13:58,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:13:58,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:13:58,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:13:58,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:13:58,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:13:56" (1/3) ... [2021-10-16 02:13:58,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae2f45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:58, skipping insertion in model container [2021-10-16 02:13:58,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:56" (2/3) ... [2021-10-16 02:13:58,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae2f45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:58, skipping insertion in model container [2021-10-16 02:13:58,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:58" (3/3) ... [2021-10-16 02:13:58,629 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2021-10-16 02:13:58,635 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:13:58,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:13:58,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:13:58,635 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:13:58,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,699 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,700 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,702 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,703 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,703 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,704 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,706 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,706 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,708 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,709 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,714 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,714 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,715 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,716 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,716 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,719 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,719 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,719 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,721 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,723 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,725 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,725 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,725 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,726 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,726 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,726 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,727 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,727 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,730 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,730 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,730 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,730 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,731 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,732 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,733 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,733 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,733 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,741 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,742 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,742 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,742 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,742 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,743 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,743 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,750 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,751 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,751 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,751 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,751 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,752 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,753 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,753 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,757 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,757 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,757 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,757 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,759 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,760 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,760 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,760 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,760 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,762 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,762 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:13:58,769 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-16 02:13:58,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:13:58,831 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, mConcurrency=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 [2021-10-16 02:13:58,831 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-16 02:13:58,857 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:13:58,871 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 210 transitions, 452 flow [2021-10-16 02:13:58,875 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 210 transitions, 452 flow [2021-10-16 02:13:58,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 210 transitions, 452 flow [2021-10-16 02:13:59,016 INFO L129 PetriNetUnfolder]: 19/206 cut-off events. [2021-10-16 02:13:59,016 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-16 02:13:59,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 206 events. 19/206 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 99 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2021-10-16 02:13:59,029 INFO L116 LiptonReduction]: Number of co-enabled transitions 1692 [2021-10-16 02:14:22,414 INFO L131 LiptonReduction]: Checked pairs total: 3745 [2021-10-16 02:14:22,414 INFO L133 LiptonReduction]: Total number of compositions: 207 [2021-10-16 02:14:22,422 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 38 transitions, 108 flow [2021-10-16 02:14:22,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 324 states, 323 states have (on average 4.027863777089784) internal successors, (1301), 323 states have internal predecessors, (1301), 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) [2021-10-16 02:14:22,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 324 states, 323 states have (on average 4.027863777089784) internal successors, (1301), 323 states have internal predecessors, (1301), 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) [2021-10-16 02:14:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 02:14:22,492 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:22,492 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:14:22,494 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:14:22,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash 2111961991, now seen corresponding path program 1 times [2021-10-16 02:14:22,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:22,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133779158] [2021-10-16 02:14:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:22,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:22,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:22,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:22,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:14:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:22,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:14:22,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:23,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:23,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:23,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133779158] [2021-10-16 02:14:23,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133779158] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:14:23,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:14:23,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:14:23,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664206235] [2021-10-16 02:14:23,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:14:23,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:23,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:14:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:14:23,192 INFO L87 Difference]: Start difference. First operand has 324 states, 323 states have (on average 4.027863777089784) internal successors, (1301), 323 states have internal predecessors, (1301), 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 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2021-10-16 02:14:23,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:23,291 INFO L93 Difference]: Finished difference Result 436 states and 1741 transitions. [2021-10-16 02:14:23,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:14:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 23 [2021-10-16 02:14:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:23,314 INFO L225 Difference]: With dead ends: 436 [2021-10-16 02:14:23,314 INFO L226 Difference]: Without dead ends: 436 [2021-10-16 02:14:23,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:14:23,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-10-16 02:14:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 380. [2021-10-16 02:14:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 3.9815303430079156) internal successors, (1509), 379 states have internal predecessors, (1509), 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) [2021-10-16 02:14:23,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 1509 transitions. [2021-10-16 02:14:23,398 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 1509 transitions. Word has length 23 [2021-10-16 02:14:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 1509 transitions. [2021-10-16 02:14:23,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2021-10-16 02:14:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 1509 transitions. [2021-10-16 02:14:23,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:14:23,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:23,406 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:14:23,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:23,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:23,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:14:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:23,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1082065759, now seen corresponding path program 1 times [2021-10-16 02:14:23,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:23,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510361533] [2021-10-16 02:14:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:23,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:23,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:23,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:23,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:14:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:23,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:14:23,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:24,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:24,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:24,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510361533] [2021-10-16 02:14:24,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510361533] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:14:24,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:14:24,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:14:24,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812220727] [2021-10-16 02:14:24,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:14:24,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:24,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:14:24,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:14:24,123 INFO L87 Difference]: Start difference. First operand 380 states and 1509 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-16 02:14:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:24,242 INFO L93 Difference]: Finished difference Result 439 states and 1666 transitions. [2021-10-16 02:14:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:14:24,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 25 [2021-10-16 02:14:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:24,251 INFO L225 Difference]: With dead ends: 439 [2021-10-16 02:14:24,251 INFO L226 Difference]: Without dead ends: 381 [2021-10-16 02:14:24,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:14:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-10-16 02:14:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-10-16 02:14:24,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 3.973684210526316) internal successors, (1510), 380 states have internal predecessors, (1510), 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) [2021-10-16 02:14:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 1510 transitions. [2021-10-16 02:14:24,283 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 1510 transitions. Word has length 25 [2021-10-16 02:14:24,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:24,283 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 1510 transitions. [2021-10-16 02:14:24,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-16 02:14:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 1510 transitions. [2021-10-16 02:14:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-16 02:14:24,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:24,288 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:14:24,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:24,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:24,501 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:14:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 156723697, now seen corresponding path program 1 times [2021-10-16 02:14:24,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:24,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440952757] [2021-10-16 02:14:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:24,502 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:24,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:24,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:24,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:14:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:24,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 02:14:24,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:25,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:25,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:25,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440952757] [2021-10-16 02:14:25,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440952757] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:14:25,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:14:25,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2021-10-16 02:14:25,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515011417] [2021-10-16 02:14:25,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:14:25,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:25,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:14:25,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:14:25,510 INFO L87 Difference]: Start difference. First operand 381 states and 1510 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-16 02:14:25,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:25,730 INFO L93 Difference]: Finished difference Result 653 states and 2562 transitions. [2021-10-16 02:14:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:14:25,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-16 02:14:25,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:25,739 INFO L225 Difference]: With dead ends: 653 [2021-10-16 02:14:25,739 INFO L226 Difference]: Without dead ends: 653 [2021-10-16 02:14:25,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:14:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2021-10-16 02:14:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 477. [2021-10-16 02:14:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 4.023109243697479) internal successors, (1915), 476 states have internal predecessors, (1915), 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) [2021-10-16 02:14:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 1915 transitions. [2021-10-16 02:14:25,781 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 1915 transitions. Word has length 26 [2021-10-16 02:14:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:25,782 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 1915 transitions. [2021-10-16 02:14:25,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-16 02:14:25,782 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1915 transitions. [2021-10-16 02:14:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 02:14:25,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:25,785 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:14:25,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:14:26,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:26,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:14:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:26,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2007388537, now seen corresponding path program 1 times [2021-10-16 02:14:26,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:26,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835818266] [2021-10-16 02:14:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:26,002 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:26,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:26,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:26,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:14:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:26,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:14:26,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:26,581 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-16 02:14:26,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2021-10-16 02:14:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:26,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:28,222 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-10-16 02:14:28,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 93 treesize of output 71 [2021-10-16 02:14:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:41,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:41,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835818266] [2021-10-16 02:14:41,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835818266] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:14:41,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1205202147] [2021-10-16 02:14:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:41,704 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:14:41,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:14:41,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:14:41,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-16 02:14:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:42,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-16 02:14:42,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:42,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:42,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2021-10-16 02:14:47,660 INFO L354 Elim1Store]: treesize reduction 815, result has 6.5 percent of original size [2021-10-16 02:14:47,661 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 78 treesize of output 98 [2021-10-16 02:17:58,524 WARN L207 SmtUtils]: Spent 3.12 m on a formula simplification. DAG size of input: 344 DAG size of output: 123 [2021-10-16 02:17:58,526 INFO L354 Elim1Store]: treesize reduction 1513, result has 22.3 percent of original size [2021-10-16 02:17:58,526 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 39 case distinctions, treesize of input 116 treesize of output 492 [2021-10-16 02:25:06,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-10-16 02:25:06,050 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-16 02:25:06,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-16 02:25:06,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263953403] [2021-10-16 02:25:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:06,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:06,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:25:06,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 02:25:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:06,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-16 02:25:06,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:06,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:25:06,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:25:06,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-10-16 02:25:06,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876626165] [2021-10-16 02:25:06,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:25:06,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:25:06,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:25:06,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=121, Unknown=1, NotChecked=0, Total=156 [2021-10-16 02:25:06,473 INFO L87 Difference]: Start difference. First operand 477 states and 1915 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2021-10-16 02:25:06,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:06,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:06,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:07,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:25:07,075 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:432) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:881) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:778) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 35 more [2021-10-16 02:25:07,078 INFO L168 Benchmark]: Toolchain (without parser) took 670753.62 ms. Allocated memory was 54.5 MB in the beginning and 142.6 MB in the end (delta: 88.1 MB). Free memory was 31.0 MB in the beginning and 99.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,078 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:25:07,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.19 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 30.8 MB in the beginning and 51.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,081 INFO L168 Benchmark]: Boogie Preprocessor took 70.94 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 46.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,082 INFO L168 Benchmark]: RCFGBuilder took 1588.31 ms. Allocated memory is still 73.4 MB. Free memory was 46.1 MB in the beginning and 37.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,083 INFO L168 Benchmark]: TraceAbstraction took 668456.25 ms. Allocated memory was 73.4 MB in the beginning and 142.6 MB in the end (delta: 69.2 MB). Free memory was 36.8 MB in the beginning and 99.0 MB in the end (delta: -62.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:25:07,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.19 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 30.8 MB in the beginning and 51.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.94 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 46.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1588.31 ms. Allocated memory is still 73.4 MB. Free memory was 46.1 MB in the beginning and 37.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 668456.25 ms. Allocated memory was 73.4 MB in the beginning and 142.6 MB in the end (delta: 69.2 MB). Free memory was 36.8 MB in the beginning and 99.0 MB in the end (delta: -62.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23539.6ms, 204 PlacesBefore, 45 PlacesAfterwards, 210 TransitionsBefore, 38 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 8 FixpointIterations, 132 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 207 TotalNumberOfCompositions, 3745 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2598, positive: 2461, positive conditional: 0, positive unconditional: 2461, negative: 137, negative conditional: 0, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1153, positive: 1124, positive conditional: 0, positive unconditional: 1124, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1153, positive: 1118, positive conditional: 0, positive unconditional: 1118, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1039, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 947, negative conditional: 0, negative unconditional: 947, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2598, positive: 1337, positive conditional: 0, positive unconditional: 1337, negative: 108, negative conditional: 0, negative unconditional: 108, unknown: 1153, unknown conditional: 0, unknown unconditional: 1153] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57e48ad2-2461-4184-a407-4f22aea90fcc/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...