./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw --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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da ............................................................................................................................................ 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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw --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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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-e943c26 [2021-10-20 05:38:58,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:38:58,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:38:58,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:38:58,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:38:58,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:38:58,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:38:58,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:38:58,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:38:58,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:38:58,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:38:58,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:38:58,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:38:58,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:38:58,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:38:58,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:38:58,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:38:58,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:38:58,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:38:58,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:38:58,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:38:58,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:38:58,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:38:58,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:38:58,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:38:58,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:38:58,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:38:58,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:38:58,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:38:58,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:38:58,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:38:58,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:38:58,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:38:58,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:38:58,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:38:58,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:38:58,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:38:58,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:38:58,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:38:58,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:38:58,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:38:58,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:38:58,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:38:58,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:38:58,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:38:58,847 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:38:58,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:38:58,847 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:38:58,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:38:58,847 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:38:58,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:38:58,855 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:38:58,856 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:38:58,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:38:58,857 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:38:58,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:38:58,857 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:38:58,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:38:58,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:38:58,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:38:58,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:38:58,860 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:38:58,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:38:58,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:38:58,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:38:58,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:38:58,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:38:58,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:38:58,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:38:58,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:38:58,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:38:58,863 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:38:58,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:38:58,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:38:58,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:38:58,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:38:58,864 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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2021-10-20 05:38:59,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:38:59,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:38:59,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:38:59,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:38:59,198 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:38:59,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-20 05:38:59,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/671e91f5a/b338a5069921416b9f5198c94ab9d22a/FLAG940c213a4 [2021-10-20 05:38:59,746 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:38:59,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-20 05:38:59,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/671e91f5a/b338a5069921416b9f5198c94ab9d22a/FLAG940c213a4 [2021-10-20 05:39:00,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/671e91f5a/b338a5069921416b9f5198c94ab9d22a [2021-10-20 05:39:00,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:39:00,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:39:00,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:00,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:39:00,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:39:00,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:00" (1/1) ... [2021-10-20 05:39:00,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70294bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:00, skipping insertion in model container [2021-10-20 05:39:00,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:00" (1/1) ... [2021-10-20 05:39:00,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:39:00,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:39:00,351 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_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-20 05:39:00,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:00,370 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) [2021-10-20 05:39:00,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ab74ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:00, skipping insertion in model container [2021-10-20 05:39:00,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:00,371 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:39:00,373 INFO L168 Benchmark]: Toolchain (without parser) took 256.72 ms. Allocated memory is still 140.5 MB. Free memory was 103.5 MB in the beginning and 116.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:39:00,374 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 111.0 MB in the beginning and 111.0 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:39:00,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.43 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 116.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:39:00,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 111.0 MB in the beginning and 111.0 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.43 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 116.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: 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-e943c26 [2021-10-20 05:39:02,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:39:02,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:39:02,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:39:02,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:39:02,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:39:02,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:39:02,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:39:02,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:39:02,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:39:02,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:39:02,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:39:02,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:39:02,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:39:02,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:39:02,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:39:02,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:39:02,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:39:02,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:39:02,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:39:02,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:39:02,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:39:02,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:39:02,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:39:02,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:39:02,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:39:02,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:39:02,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:39:02,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:39:02,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:39:02,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:39:02,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:39:02,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:39:02,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:39:02,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:39:02,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:39:02,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:39:02,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:39:02,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:39:02,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:39:02,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:39:02,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:39:02,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:39:02,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:39:02,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:39:02,750 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:39:02,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:39:02,750 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:39:02,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:39:02,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:39:02,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:39:02,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:39:02,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:39:02,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:39:02,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:39:02,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:39:02,755 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:39:02,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:39:02,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:39:02,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:39:02,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:39:02,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:39:02,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:39:02,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:39:02,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:39:02,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:39:02,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:39:02,757 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:39:02,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:39:02,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:39:02,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:39:02,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:39:02,758 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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2021-10-20 05:39:03,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:39:03,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:39:03,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:39:03,201 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:39:03,201 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:39:03,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-20 05:39:03,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/a86222e65/278db89ec3a94de38539f34cb6069c85/FLAG4b04d9db8 [2021-10-20 05:39:03,786 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:39:03,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-20 05:39:03,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/a86222e65/278db89ec3a94de38539f34cb6069c85/FLAG4b04d9db8 [2021-10-20 05:39:04,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/data/a86222e65/278db89ec3a94de38539f34cb6069c85 [2021-10-20 05:39:04,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:39:04,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:39:04,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:04,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:39:04,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:39:04,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281c42a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04, skipping insertion in model container [2021-10-20 05:39:04,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:39:04,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:39:04,403 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_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-20 05:39:04,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:04,424 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:39:04,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:39:04,475 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_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-20 05:39:04,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:04,504 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:39:04,530 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_48650707-71e2-4200-b24c-f7987ebf0bdf/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-20 05:39:04,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:04,550 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:39:04,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04 WrapperNode [2021-10-20 05:39:04,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:04,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:39:04,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:39:04,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:39:04,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:39:04,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:39:04,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:39:04,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:39:04,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:39:04,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:39:04,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:39:04,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:39:04,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (1/1) ... [2021-10-20 05:39:04,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:39:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:04,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:39:04,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:39:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:39:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:39:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-20 05:39:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-20 05:39:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-20 05:39:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-20 05:39:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-20 05:39:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-20 05:39:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:39:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:39:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:39:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-20 05:39:04,739 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-20 05:39:05,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:39:05,346 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-20 05:39:05,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:39:05 BoogieIcfgContainer [2021-10-20 05:39:05,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:39:05,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:39:05,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:39:05,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:39:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:39:04" (1/3) ... [2021-10-20 05:39:05,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b862a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:39:05, skipping insertion in model container [2021-10-20 05:39:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:04" (2/3) ... [2021-10-20 05:39:05,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b862a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:39:05, skipping insertion in model container [2021-10-20 05:39:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:39:05" (3/3) ... [2021-10-20 05:39:05,357 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2021-10-20 05:39:05,362 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-20 05:39:05,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:39:05,362 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:39:05,362 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-20 05:39:05,407 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,408 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,408 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,409 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,410 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,411 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,411 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,412 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,412 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,412 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,417 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,417 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,418 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,418 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,418 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,418 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,418 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,422 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,422 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,422 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,422 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,423 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,424 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,424 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,424 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,424 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,426 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,426 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,426 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,428 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,428 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,428 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,428 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,429 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,429 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,429 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,429 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,429 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,431 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,431 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,434 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,436 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,437 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,437 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,437 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,438 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,441 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,442 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,444 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,444 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,444 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,444 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,444 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,451 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,455 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,455 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,471 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,471 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,472 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,472 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,472 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,483 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,483 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,484 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,484 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,485 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,486 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,486 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,486 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,486 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,486 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:39:05,493 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-20 05:39:05,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:39:05,542 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:39:05,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:39:05,561 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-20 05:39:05,570 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 218 transitions, 452 flow [2021-10-20 05:39:05,573 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 218 transitions, 452 flow [2021-10-20 05:39:05,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 218 transitions, 452 flow [2021-10-20 05:39:05,667 INFO L129 PetriNetUnfolder]: 21/216 cut-off events. [2021-10-20 05:39:05,667 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-20 05:39:05,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 21/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 295 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 139. Up to 3 conditions per place. [2021-10-20 05:39:05,689 INFO L116 LiptonReduction]: Number of co-enabled transitions 4988 [2021-10-20 05:39:22,806 INFO L131 LiptonReduction]: Checked pairs total: 5377 [2021-10-20 05:39:22,806 INFO L133 LiptonReduction]: Total number of compositions: 247 [2021-10-20 05:39:22,816 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 26 transitions, 68 flow [2021-10-20 05:39:22,836 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 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) [2021-10-20 05:39:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 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) [2021-10-20 05:39:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 05:39:22,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:22,848 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:22,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:39:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:22,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1807494129, now seen corresponding path program 1 times [2021-10-20 05:39:22,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:39:22,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650036239] [2021-10-20 05:39:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:22,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:39:22,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:39:22,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:39:22,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:39:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:23,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-20 05:39:23,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:24,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:25,989 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:25,990 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 352 treesize of output 412 [2021-10-20 05:39:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:29,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:39:29,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650036239] [2021-10-20 05:39:29,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650036239] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:39:29,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:39:29,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-20 05:39:29,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579127408] [2021-10-20 05:39:29,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 05:39:29,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:39:29,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 05:39:29,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-20 05:39:29,118 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 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 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2021-10-20 05:39:32,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:32,681 INFO L93 Difference]: Finished difference Result 310 states and 671 transitions. [2021-10-20 05:39:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-20 05:39:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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 15 [2021-10-20 05:39:32,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:32,697 INFO L225 Difference]: With dead ends: 310 [2021-10-20 05:39:32,697 INFO L226 Difference]: Without dead ends: 265 [2021-10-20 05:39:32,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2966.7ms TimeCoverageRelationStatistics Valid=208, Invalid=548, Unknown=0, NotChecked=0, Total=756 [2021-10-20 05:39:32,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-20 05:39:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 107. [2021-10-20 05:39:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 2.358490566037736) internal successors, (250), 106 states have internal predecessors, (250), 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) [2021-10-20 05:39:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 250 transitions. [2021-10-20 05:39:32,751 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 250 transitions. Word has length 15 [2021-10-20 05:39:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:32,751 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 250 transitions. [2021-10-20 05:39:32,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2021-10-20 05:39:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 250 transitions. [2021-10-20 05:39:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 05:39:32,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:32,754 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:32,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-20 05:39:32,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:39:32,967 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:39:32,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:32,967 INFO L82 PathProgramCache]: Analyzing trace with hash -493602573, now seen corresponding path program 1 times [2021-10-20 05:39:32,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:39:32,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406805699] [2021-10-20 05:39:32,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:32,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:39:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:39:32,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:39:32,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:39:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:33,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-20 05:39:33,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:33,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:35,404 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:35,405 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 338 treesize of output 398 [2021-10-20 05:39:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:37,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:39:37,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406805699] [2021-10-20 05:39:37,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406805699] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:37,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2061853301] [2021-10-20 05:39:37,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:37,252 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:39:37,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:39:37,260 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:39:37,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-20 05:39:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:37,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-20 05:39:37,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:38,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:39,515 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:39,516 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 338 treesize of output 398 [2021-10-20 05:39:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:40,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2061853301] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:40,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495266713] [2021-10-20 05:39:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:40,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:40,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:40,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:40,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-20 05:39:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:41,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-20 05:39:41,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:41,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:42,915 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:42,917 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 338 treesize of output 398 [2021-10-20 05:39:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:44,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495266713] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:44,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 05:39:44,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 22 [2021-10-20 05:39:44,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719267483] [2021-10-20 05:39:44,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-20 05:39:44,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:39:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-20 05:39:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-10-20 05:39:44,115 INFO L87 Difference]: Start difference. First operand 107 states and 250 transitions. Second operand has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 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) [2021-10-20 05:39:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:51,168 INFO L93 Difference]: Finished difference Result 642 states and 1520 transitions. [2021-10-20 05:39:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-20 05:39:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 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) Word has length 16 [2021-10-20 05:39:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:51,177 INFO L225 Difference]: With dead ends: 642 [2021-10-20 05:39:51,178 INFO L226 Difference]: Without dead ends: 580 [2021-10-20 05:39:51,180 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 5237.7ms TimeCoverageRelationStatistics Valid=723, Invalid=2247, Unknown=0, NotChecked=0, Total=2970 [2021-10-20 05:39:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-10-20 05:39:51,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 182. [2021-10-20 05:39:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.3701657458563536) internal successors, (429), 181 states have internal predecessors, (429), 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) [2021-10-20 05:39:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 429 transitions. [2021-10-20 05:39:51,261 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 429 transitions. Word has length 16 [2021-10-20 05:39:51,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:51,261 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 429 transitions. [2021-10-20 05:39:51,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 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) [2021-10-20 05:39:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 429 transitions. [2021-10-20 05:39:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 05:39:51,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:51,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:51,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:51,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:51,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:51,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:39:51,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:39:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:51,878 INFO L82 PathProgramCache]: Analyzing trace with hash -872664831, now seen corresponding path program 1 times [2021-10-20 05:39:51,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:39:51,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136699781] [2021-10-20 05:39:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:51,879 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:39:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:39:51,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:39:51,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:39:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:52,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-20 05:39:52,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:52,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:54,219 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:54,219 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 338 treesize of output 398 [2021-10-20 05:39:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:55,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:39:55,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136699781] [2021-10-20 05:39:55,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136699781] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:55,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [355839953] [2021-10-20 05:39:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:55,691 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:39:55,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:39:55,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:39:55,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-20 05:39:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:56,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-20 05:39:56,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:56,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:57,930 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:39:57,930 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 338 treesize of output 398 [2021-10-20 05:39:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:59,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [355839953] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:59,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541727264] [2021-10-20 05:39:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:59,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:59,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:59,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:59,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-20 05:39:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:59,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-20 05:39:59,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:00,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:01,581 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:40:01,582 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 338 treesize of output 398 [2021-10-20 05:40:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:02,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541727264] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:40:02,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 05:40:02,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 7, 7] total 23 [2021-10-20 05:40:02,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840487881] [2021-10-20 05:40:02,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-20 05:40:02,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:02,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-20 05:40:02,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2021-10-20 05:40:02,470 INFO L87 Difference]: Start difference. First operand 182 states and 429 transitions. Second operand has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:11,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:11,884 INFO L93 Difference]: Finished difference Result 725 states and 1634 transitions. [2021-10-20 05:40:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-20 05:40:11,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 05:40:11,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:11,891 INFO L225 Difference]: With dead ends: 725 [2021-10-20 05:40:11,891 INFO L226 Difference]: Without dead ends: 690 [2021-10-20 05:40:11,892 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 7198.7ms TimeCoverageRelationStatistics Valid=643, Invalid=1907, Unknown=0, NotChecked=0, Total=2550 [2021-10-20 05:40:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-20 05:40:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 183. [2021-10-20 05:40:11,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.368131868131868) internal successors, (431), 182 states have internal predecessors, (431), 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) [2021-10-20 05:40:11,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 431 transitions. [2021-10-20 05:40:11,917 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 431 transitions. Word has length 16 [2021-10-20 05:40:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:11,917 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 431 transitions. [2021-10-20 05:40:11,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:11,918 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 431 transitions. [2021-10-20 05:40:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-20 05:40:11,919 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:11,919 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:11,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:12,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:12,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:12,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:12,523 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:12,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1266528975, now seen corresponding path program 2 times [2021-10-20 05:40:12,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:12,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316809290] [2021-10-20 05:40:12,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:40:12,524 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:12,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:12,525 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:12,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 05:40:12,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-20 05:40:12,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:40:12,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-20 05:40:12,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:40:15,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:16,729 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:40:16,730 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 345 treesize of output 405 [2021-10-20 05:40:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:40:18,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:18,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316809290] [2021-10-20 05:40:18,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316809290] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:40:18,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:40:18,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-20 05:40:18,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873925092] [2021-10-20 05:40:18,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 05:40:18,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:18,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 05:40:18,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2021-10-20 05:40:18,330 INFO L87 Difference]: Start difference. First operand 183 states and 431 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:19,093 INFO L93 Difference]: Finished difference Result 359 states and 816 transitions. [2021-10-20 05:40:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:40:19,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-20 05:40:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:19,098 INFO L225 Difference]: With dead ends: 359 [2021-10-20 05:40:19,098 INFO L226 Difference]: Without dead ends: 334 [2021-10-20 05:40:19,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2623.3ms TimeCoverageRelationStatistics Valid=117, Invalid=262, Unknown=1, NotChecked=0, Total=380 [2021-10-20 05:40:19,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-20 05:40:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 172. [2021-10-20 05:40:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.2982456140350878) internal successors, (393), 171 states have internal predecessors, (393), 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) [2021-10-20 05:40:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 393 transitions. [2021-10-20 05:40:19,126 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 393 transitions. Word has length 17 [2021-10-20 05:40:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:19,127 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 393 transitions. [2021-10-20 05:40:19,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 393 transitions. [2021-10-20 05:40:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-20 05:40:19,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:19,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:19,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:19,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:19,337 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1645591233, now seen corresponding path program 1 times [2021-10-20 05:40:19,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:19,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538845374] [2021-10-20 05:40:19,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:40:19,338 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:19,339 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:19,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-20 05:40:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:40:19,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-20 05:40:19,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:20,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:20,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:20,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538845374] [2021-10-20 05:40:20,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538845374] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:40:20,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694880339] [2021-10-20 05:40:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:40:20,437 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:40:20,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:40:20,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:40:20,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-20 05:40:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:40:21,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-20 05:40:21,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:21,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:21,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1694880339] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:40:21,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471222441] [2021-10-20 05:40:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:40:21,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:40:21,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:40:21,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:40:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-20 05:40:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:40:22,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 05:40:22,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:22,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:22,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471222441] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:40:22,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 05:40:22,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 17 [2021-10-20 05:40:22,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749429243] [2021-10-20 05:40:22,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-20 05:40:22,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-20 05:40:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-10-20 05:40:22,412 INFO L87 Difference]: Start difference. First operand 172 states and 393 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 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) [2021-10-20 05:40:23,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:23,996 INFO L93 Difference]: Finished difference Result 511 states and 1116 transitions. [2021-10-20 05:40:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-20 05:40:23,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 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 17 [2021-10-20 05:40:23,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:24,003 INFO L225 Difference]: With dead ends: 511 [2021-10-20 05:40:24,003 INFO L226 Difference]: Without dead ends: 511 [2021-10-20 05:40:24,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 779.6ms TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2021-10-20 05:40:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-10-20 05:40:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 183. [2021-10-20 05:40:24,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.2857142857142856) internal successors, (416), 182 states have internal predecessors, (416), 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) [2021-10-20 05:40:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 416 transitions. [2021-10-20 05:40:24,018 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 416 transitions. Word has length 17 [2021-10-20 05:40:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:24,018 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 416 transitions. [2021-10-20 05:40:24,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 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) [2021-10-20 05:40:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 416 transitions. [2021-10-20 05:40:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:40:24,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:24,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:24,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:24,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-20 05:40:24,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:24,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:40:24,633 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash -44712999, now seen corresponding path program 1 times [2021-10-20 05:40:24,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:24,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322503012] [2021-10-20 05:40:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:40:24,635 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:24,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:24,636 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:24,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-20 05:40:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:40:25,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 05:40:25,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:25,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:40:25,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:25,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322503012] [2021-10-20 05:40:25,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322503012] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:40:25,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:40:25,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:40:25,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394891876] [2021-10-20 05:40:25,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:40:25,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:25,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:40:25,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:40:25,382 INFO L87 Difference]: Start difference. First operand 183 states and 416 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:25,681 INFO L93 Difference]: Finished difference Result 211 states and 459 transitions. [2021-10-20 05:40:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:40:25,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 05:40:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:25,685 INFO L225 Difference]: With dead ends: 211 [2021-10-20 05:40:25,685 INFO L226 Difference]: Without dead ends: 173 [2021-10-20 05:40:25,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 56.6ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:40:25,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-20 05:40:25,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-10-20 05:40:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 2.2906976744186047) internal successors, (394), 172 states have internal predecessors, (394), 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) [2021-10-20 05:40:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 394 transitions. [2021-10-20 05:40:25,694 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 394 transitions. Word has length 18 [2021-10-20 05:40:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 394 transitions. [2021-10-20 05:40:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 394 transitions. [2021-10-20 05:40:25,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:40:25,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:25,697 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:25,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:25,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:25,913 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:25,913 INFO L82 PathProgramCache]: Analyzing trace with hash 282524265, now seen corresponding path program 3 times [2021-10-20 05:40:25,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:25,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595038189] [2021-10-20 05:40:25,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-20 05:40:25,914 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:25,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:25,915 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:25,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-20 05:40:26,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-20 05:40:26,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:40:26,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-20 05:40:26,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-20 05:40:28,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:30,417 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:40:30,418 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 345 treesize of output 405 [2021-10-20 05:40:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-20 05:40:31,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:31,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595038189] [2021-10-20 05:40:31,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595038189] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:40:31,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:40:31,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-20 05:40:31,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668194343] [2021-10-20 05:40:31,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 05:40:31,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 05:40:31,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2021-10-20 05:40:31,875 INFO L87 Difference]: Start difference. First operand 173 states and 394 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:32,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:32,588 INFO L93 Difference]: Finished difference Result 234 states and 510 transitions. [2021-10-20 05:40:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:40:32,589 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-20 05:40:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:32,591 INFO L225 Difference]: With dead ends: 234 [2021-10-20 05:40:32,591 INFO L226 Difference]: Without dead ends: 225 [2021-10-20 05:40:32,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2722.9ms TimeCoverageRelationStatistics Valid=117, Invalid=262, Unknown=1, NotChecked=0, Total=380 [2021-10-20 05:40:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-20 05:40:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 144. [2021-10-20 05:40:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.2517482517482517) internal successors, (322), 143 states have internal predecessors, (322), 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) [2021-10-20 05:40:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 322 transitions. [2021-10-20 05:40:32,600 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 322 transitions. Word has length 19 [2021-10-20 05:40:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:32,601 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 322 transitions. [2021-10-20 05:40:32,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 322 transitions. [2021-10-20 05:40:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:40:32,602 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:32,603 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:32,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-20 05:40:32,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:32,819 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:32,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:32,819 INFO L82 PathProgramCache]: Analyzing trace with hash 289677361, now seen corresponding path program 2 times [2021-10-20 05:40:32,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:32,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205655501] [2021-10-20 05:40:32,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:40:32,820 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:32,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:32,821 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:32,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-20 05:40:33,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-20 05:40:33,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:40:33,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-20 05:40:33,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:35,009 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-10-20 05:40:35,010 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 246 treesize of output 374 [2021-10-20 05:40:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 05:40:36,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:37,923 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:40:37,924 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 352 treesize of output 412 [2021-10-20 05:40:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 05:40:41,055 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:41,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205655501] [2021-10-20 05:40:41,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205655501] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:40:41,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:40:41,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-20 05:40:41,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908696675] [2021-10-20 05:40:41,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 05:40:41,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 05:40:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-10-20 05:40:41,057 INFO L87 Difference]: Start difference. First operand 144 states and 322 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-10-20 05:40:47,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:47,181 INFO L93 Difference]: Finished difference Result 335 states and 806 transitions. [2021-10-20 05:40:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-20 05:40:47,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 19 [2021-10-20 05:40:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:47,185 INFO L225 Difference]: With dead ends: 335 [2021-10-20 05:40:47,185 INFO L226 Difference]: Without dead ends: 312 [2021-10-20 05:40:47,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 4558.5ms TimeCoverageRelationStatistics Valid=198, Invalid=354, Unknown=0, NotChecked=0, Total=552 [2021-10-20 05:40:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-20 05:40:47,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 148. [2021-10-20 05:40:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 2.2789115646258504) internal successors, (335), 147 states have internal predecessors, (335), 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) [2021-10-20 05:40:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 335 transitions. [2021-10-20 05:40:47,198 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 335 transitions. Word has length 19 [2021-10-20 05:40:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:47,199 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 335 transitions. [2021-10-20 05:40:47,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-10-20 05:40:47,200 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 335 transitions. [2021-10-20 05:40:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:40:47,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:47,201 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:47,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:47,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:47,413 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:47,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:47,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1663699725, now seen corresponding path program 3 times [2021-10-20 05:40:47,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:47,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878065362] [2021-10-20 05:40:47,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-20 05:40:47,414 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:47,416 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:47,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-20 05:40:48,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-20 05:40:48,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:40:48,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-20 05:40:48,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:40:49,677 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-10-20 05:40:49,677 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 246 treesize of output 374 [2021-10-20 05:40:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 05:40:50,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:40:51,749 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-20 05:40:51,750 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 352 treesize of output 412 [2021-10-20 05:40:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 05:40:55,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:40:55,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878065362] [2021-10-20 05:40:55,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878065362] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:40:55,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:40:55,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-20 05:40:55,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076798498] [2021-10-20 05:40:55,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 05:40:55,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:40:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 05:40:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-10-20 05:40:55,964 INFO L87 Difference]: Start difference. First operand 148 states and 335 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-10-20 05:40:58,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:40:58,497 INFO L93 Difference]: Finished difference Result 265 states and 637 transitions. [2021-10-20 05:40:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 05:40:58,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 19 [2021-10-20 05:40:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:40:58,499 INFO L225 Difference]: With dead ends: 265 [2021-10-20 05:40:58,499 INFO L226 Difference]: Without dead ends: 250 [2021-10-20 05:40:58,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2137.0ms TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-10-20 05:40:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-20 05:40:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 137. [2021-10-20 05:40:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 2.264705882352941) internal successors, (308), 136 states have internal predecessors, (308), 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) [2021-10-20 05:40:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 308 transitions. [2021-10-20 05:40:58,506 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 308 transitions. Word has length 19 [2021-10-20 05:40:58,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:40:58,507 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 308 transitions. [2021-10-20 05:40:58,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-10-20 05:40:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 308 transitions. [2021-10-20 05:40:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:40:58,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:40:58,508 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:40:58,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-20 05:40:58,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:40:58,725 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:40:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:40:58,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1913429159, now seen corresponding path program 1 times [2021-10-20 05:40:58,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:40:58,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063936539] [2021-10-20 05:40:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:40:58,726 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:40:58,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:40:58,727 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:40:58,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-20 05:40:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:40:59,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-20 05:40:59,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:41:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:41:00,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:41:08,868 WARN L207 SmtUtils]: Spent 7.68 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-20 05:41:08,870 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-20 05:41:08,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-20 05:41:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:41:54,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:41:54,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063936539] [2021-10-20 05:41:54,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063936539] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:41:54,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [793095941] [2021-10-20 05:41:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:41:54,150 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:41:54,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:41:54,151 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:41:54,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-20 05:41:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:41:55,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-20 05:41:55,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:41:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:41:56,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:42:04,878 WARN L207 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-20 05:42:04,882 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-20 05:42:04,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-20 05:42:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:42:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [793095941] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:42:44,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405600940] [2021-10-20 05:42:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:42:44,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:42:44,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:42:44,269 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:42:44,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-20 05:42:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:42:45,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-20 05:42:45,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:42:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:42:46,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:42:56,921 WARN L207 SmtUtils]: Spent 9.19 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-20 05:42:56,923 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-20 05:42:56,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-20 05:43:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:43:21,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405600940] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:43:21,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 05:43:21,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 6] total 40 [2021-10-20 05:43:21,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619543174] [2021-10-20 05:43:21,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-20 05:43:21,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:43:21,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-20 05:43:21,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1235, Unknown=0, NotChecked=0, Total=1560 [2021-10-20 05:43:21,201 INFO L87 Difference]: Start difference. First operand 137 states and 308 transitions. Second operand has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 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) [2021-10-20 05:43:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:43:38,359 INFO L93 Difference]: Finished difference Result 1101 states and 2317 transitions. [2021-10-20 05:43:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-20 05:43:38,360 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 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 19 [2021-10-20 05:43:38,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:43:38,367 INFO L225 Difference]: With dead ends: 1101 [2021-10-20 05:43:38,367 INFO L226 Difference]: Without dead ends: 1053 [2021-10-20 05:43:38,372 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4150 ImplicationChecksByTransitivity, 14052.5ms TimeCoverageRelationStatistics Valid=2768, Invalid=10572, Unknown=0, NotChecked=0, Total=13340 [2021-10-20 05:43:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2021-10-20 05:43:38,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 209. [2021-10-20 05:43:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 2.519230769230769) internal successors, (524), 208 states have internal predecessors, (524), 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) [2021-10-20 05:43:38,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 524 transitions. [2021-10-20 05:43:38,390 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 524 transitions. Word has length 19 [2021-10-20 05:43:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:43:38,391 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 524 transitions. [2021-10-20 05:43:38,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 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) [2021-10-20 05:43:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 524 transitions. [2021-10-20 05:43:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:43:38,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:43:38,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:43:38,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-20 05:43:38,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-20 05:43:38,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-10-20 05:43:39,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:43:39,017 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-20 05:43:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:43:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1880976935, now seen corresponding path program 2 times [2021-10-20 05:43:39,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:43:39,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714571611] [2021-10-20 05:43:39,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:43:39,018 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:43:39,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:43:39,019 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:43:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-20 05:43:39,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-20 05:43:39,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:43:39,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-20 05:43:39,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:43:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:43:41,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:43:50,987 WARN L207 SmtUtils]: Spent 7.79 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-20 05:43:50,989 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-20 05:43:50,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 513 treesize of output 1212 [2021-10-20 05:44:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:44:20,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:44:20,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714571611] [2021-10-20 05:44:20,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714571611] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:44:20,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [366359695] [2021-10-20 05:44:20,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:44:20,379 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:44:20,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:44:20,380 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:44:20,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-20 05:44:21,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-20 05:44:21,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:44:21,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-20 05:44:21,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:44:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:21,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:21,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:21,862 INFO L354 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2021-10-20 05:44:21,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 50 [2021-10-20 05:44:22,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:22,261 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 [2021-10-20 05:44:24,503 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-20 05:44:24,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 40 [2021-10-20 05:44:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:28,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 89 [2021-10-20 05:44:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:33,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:33,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:33,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:34,018 INFO L354 Elim1Store]: treesize reduction 1575, result has 5.5 percent of original size [2021-10-20 05:44:34,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 113 treesize of output 145 [2021-10-20 05:44:45,176 WARN L207 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 86 [2021-10-20 05:44:45,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:45,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:45,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:45,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:44:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:46:58,904 WARN L207 SmtUtils]: Spent 2.23 m on a formula simplification. DAG size of input: 514 DAG size of output: 132 [2021-10-20 05:46:58,905 INFO L354 Elim1Store]: treesize reduction 2570, result has 13.8 percent of original size [2021-10-20 05:46:58,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 13 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 151 treesize of output 482 [2021-10-20 05:51:31,999 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-20 05:51:32,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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") [2021-10-20 05:51:32,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058035987] [2021-10-20 05:51:32,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:51:32,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:51:32,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:51:32,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-20 05:51:32,010 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:51:32,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-20 05:51:33,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-20 05:51:33,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:51:33,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-20 05:51:33,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:51:33,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-20 05:51:33,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:51:33,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2021-10-20 05:51:33,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464765996] [2021-10-20 05:51:33,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-20 05:51:33,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:51:33,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-20 05:51:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2021-10-20 05:51:33,560 INFO L87 Difference]: Start difference. First operand 209 states and 524 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:51:33,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-10-20 05:51:33,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-20 05:51:33,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-20 05:51:34,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:51:34,167 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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) 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 [2021-10-20 05:51:34,171 INFO L168 Benchmark]: Toolchain (without parser) took 750014.86 ms. Allocated memory was 60.8 MB in the beginning and 142.6 MB in the end (delta: 81.8 MB). Free memory was 40.8 MB in the beginning and 34.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,171 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:51:34,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.09 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 42.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 40.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,172 INFO L168 Benchmark]: Boogie Preprocessor took 38.09 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 38.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,173 INFO L168 Benchmark]: RCFGBuilder took 708.90 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 38.0 MB in the beginning and 53.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,173 INFO L168 Benchmark]: TraceAbstraction took 748819.19 ms. Allocated memory was 77.6 MB in the beginning and 142.6 MB in the end (delta: 65.0 MB). Free memory was 52.9 MB in the beginning and 34.5 MB in the end (delta: 18.3 MB). Peak memory consumption was 82.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:51:34,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.09 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 42.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 40.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.09 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 38.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 708.90 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 38.0 MB in the beginning and 53.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 748819.19 ms. Allocated memory was 77.6 MB in the beginning and 142.6 MB in the end (delta: 65.0 MB). Free memory was 52.9 MB in the beginning and 34.5 MB in the end (delta: 18.3 MB). Peak memory consumption was 82.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17233.0ms, 204 PlacesBefore, 28 PlacesAfterwards, 218 TransitionsBefore, 26 TransitionsAfterwards, 4988 CoEnabledTransitionPairs, 7 FixpointIterations, 103 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 25 TrivialYvCompositions, 26 ConcurrentYvCompositions, 16 ChoiceCompositions, 247 TotalNumberOfCompositions, 5377 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4388, positive: 4311, positive conditional: 0, positive unconditional: 4311, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3612, positive: 3584, positive conditional: 0, positive unconditional: 3584, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3612, positive: 3584, positive conditional: 0, positive unconditional: 3584, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 953, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 953, negative conditional: 0, negative unconditional: 953, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4388, positive: 727, positive conditional: 0, positive unconditional: 727, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 3612, unknown conditional: 0, unknown unconditional: 3612] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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_48650707-71e2-4200-b24c-f7987ebf0bdf/bin/utaipan-tZwUujhuQw/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...