./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF --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 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:15:34,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:34,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:34,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:34,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:34,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:34,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:34,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:34,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:34,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:34,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:34,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:34,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:34,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:34,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:34,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:34,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:34,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:34,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:34,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:34,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:34,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:34,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:34,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:34,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:34,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:34,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:34,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:34,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:34,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:34,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:34,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:34,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:34,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:34,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:34,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:34,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:34,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:34,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:34,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:34,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:34,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:15:34,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:34,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:34,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:34,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:34,443 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:34,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:34,444 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:34,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:15:34,444 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:34,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:34,446 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:15:34,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:15:34,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:34,447 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:15:34,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:15:34,447 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:15:34,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:34,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:15:34,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:15:34,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:15:34,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:34,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:34,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:34,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:34,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:34,449 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:15:34,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:34,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:34,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:34,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:34,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:34,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:34,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:34,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:34,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:34,455 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2021-11-12 22:15:34,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:34,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:34,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:34,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:34,786 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:34,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-11-12 22:15:34,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/0218aa47b/5fd917504c7849bc9a47953819079e73/FLAGe15afad21 [2021-11-12 22:15:35,369 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:35,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-11-12 22:15:35,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/0218aa47b/5fd917504c7849bc9a47953819079e73/FLAGe15afad21 [2021-11-12 22:15:35,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/0218aa47b/5fd917504c7849bc9a47953819079e73 [2021-11-12 22:15:35,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:35,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:35,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:35,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:35,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:35,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:35" (1/1) ... [2021-11-12 22:15:35,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6b32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:35, skipping insertion in model container [2021-11-12 22:15:35,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:35" (1/1) ... [2021-11-12 22:15:35,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:35,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:35,985 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-11-12 22:15:35,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:36,004 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:15:36,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2800fd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:36, skipping insertion in model container [2021-11-12 22:15:36,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:36,005 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:15:36,007 INFO L158 Benchmark]: Toolchain (without parser) took 256.64ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 91.6MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:15:36,008 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:15:36,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.88ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 92.0MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:15:36,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.88ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 92.0MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 106]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF --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 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:15:38,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:38,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:38,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:38,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:38,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:38,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:38,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:38,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:38,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:38,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:38,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:38,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:38,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:38,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:38,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:38,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:38,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:38,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:38,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:38,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:38,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:38,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:38,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:38,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:38,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:38,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:38,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:38,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:38,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:38,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:38,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:38,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:38,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:38,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:38,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:38,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:38,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:38,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:38,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:38,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:38,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:15:38,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:38,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:38,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:38,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:38,505 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:38,505 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:38,505 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:38,506 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:38,506 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:38,506 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:38,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:38,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:15:38,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:15:38,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:38,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:38,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:38,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:38,508 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:38,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:15:38,508 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:15:38,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:15:38,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:38,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:38,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:38,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:38,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:15:38,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:38,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:38,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:38,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:38,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:38,511 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:15:38,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:15:38,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:38,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:38,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:38,512 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2021-11-12 22:15:38,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:38,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:38,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:38,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:38,981 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:38,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-11-12 22:15:39,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/cbfa76676/3a087a1e55ec4557a6f127b08864190b/FLAGff4750835 [2021-11-12 22:15:39,682 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:39,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-11-12 22:15:39,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/cbfa76676/3a087a1e55ec4557a6f127b08864190b/FLAGff4750835 [2021-11-12 22:15:40,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/data/cbfa76676/3a087a1e55ec4557a6f127b08864190b [2021-11-12 22:15:40,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:40,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:40,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:40,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:40,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:40,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4112829b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40, skipping insertion in model container [2021-11-12 22:15:40,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:40,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:40,258 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-11-12 22:15:40,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:40,284 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:15:40,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:40,307 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-11-12 22:15:40,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:40,365 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:15:40,390 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_8c9326ef-b61d-4fd0-b93a-070615ea786d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-11-12 22:15:40,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:40,414 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:15:40,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40 WrapperNode [2021-11-12 22:15:40,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:40,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:40,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:15:40,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:15:40,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:40,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:15:40,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:15:40,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:15:40,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:15:40,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:15:40,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:15:40,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:15:40,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (1/1) ... [2021-11-12 22:15:40,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:40,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:15:40,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:15:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:15:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:15:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:15:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:15:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:15:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:15:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 22:15:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 22:15:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 22:15:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 22:15:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 22:15:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 22:15:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:15:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:15:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:15:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:15:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:15:40,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:15:41,880 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:15:41,880 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-12 22:15:41,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:15:41 BoogieIcfgContainer [2021-11-12 22:15:41,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:15:41,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:15:41,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:15:41,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:15:41,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:15:40" (1/3) ... [2021-11-12 22:15:41,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5834ba5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:15:41, skipping insertion in model container [2021-11-12 22:15:41,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:40" (2/3) ... [2021-11-12 22:15:41,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5834ba5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:15:41, skipping insertion in model container [2021-11-12 22:15:41,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:15:41" (3/3) ... [2021-11-12 22:15:41,891 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2021-11-12 22:15:41,900 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:15:41,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:15:41,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:15:41,901 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:15:41,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,994 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,994 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,994 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,994 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,994 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:41,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,006 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,006 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,006 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:15:42,008 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 22:15:42,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:15:42,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:15:42,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 22:15:42,101 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:15:42,119 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 189 transitions, 402 flow [2021-11-12 22:15:42,122 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 189 transitions, 402 flow [2021-11-12 22:15:42,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 189 transitions, 402 flow [2021-11-12 22:15:42,247 INFO L129 PetriNetUnfolder]: 16/186 cut-off events. [2021-11-12 22:15:42,248 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 22:15:42,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 186 events. 16/186 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2021-11-12 22:15:42,257 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-11-12 22:16:15,731 INFO L131 LiptonReduction]: Checked pairs total: 1692 [2021-11-12 22:16:15,731 INFO L133 LiptonReduction]: Total number of compositions: 190 [2021-11-12 22:16:15,740 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 84 flow [2021-11-12 22:16:15,759 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 108 states, 107 states have (on average 3.074766355140187) internal successors, (329), 107 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 107 states have (on average 3.074766355140187) internal successors, (329), 107 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 22:16:15,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:15,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:15,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash 591521371, now seen corresponding path program 1 times [2021-11-12 22:16:15,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:15,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074891491] [2021-11-12 22:16:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:15,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:15,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:15,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:15,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:16:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:15,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:16:15,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:16:16,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:16:16,365 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:16,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074891491] [2021-11-12 22:16:16,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074891491] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:16,367 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:16,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-12 22:16:16,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973024955] [2021-11-12 22:16:16,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:16,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:16,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:16,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:16,397 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 3.074766355140187) internal successors, (329), 107 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:16,708 INFO L93 Difference]: Finished difference Result 205 states and 634 transitions. [2021-11-12 22:16:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:16:16,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 21 [2021-11-12 22:16:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:16,727 INFO L225 Difference]: With dead ends: 205 [2021-11-12 22:16:16,727 INFO L226 Difference]: Without dead ends: 198 [2021-11-12 22:16:16,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:16,732 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.77ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:16,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 57 Unknown, 0 Unchecked, 1.49ms Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 275.77ms Time] [2021-11-12 22:16:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-12 22:16:16,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-12 22:16:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 3.1269035532994924) internal successors, (616), 197 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 616 transitions. [2021-11-12 22:16:16,804 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 616 transitions. Word has length 21 [2021-11-12 22:16:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:16,805 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 616 transitions. [2021-11-12 22:16:16,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 616 transitions. [2021-11-12 22:16:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:16:16,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:16,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:16,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:17,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:17,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:17,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:17,030 INFO L85 PathProgramCache]: Analyzing trace with hash -159711441, now seen corresponding path program 1 times [2021-11-12 22:16:17,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:17,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85638224] [2021-11-12 22:16:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:17,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:17,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:17,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:17,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:16:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:17,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:16:17,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:16:17,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:16:17,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:17,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85638224] [2021-11-12 22:16:17,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85638224] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:16:17,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:16:17,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-12 22:16:17,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406814626] [2021-11-12 22:16:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:17,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:17,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:17,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:17,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:16:17,602 INFO L87 Difference]: Start difference. First operand 198 states and 616 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:17,941 INFO L93 Difference]: Finished difference Result 201 states and 619 transitions. [2021-11-12 22:16:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:16:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-12 22:16:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:17,945 INFO L225 Difference]: With dead ends: 201 [2021-11-12 22:16:17,945 INFO L226 Difference]: Without dead ends: 200 [2021-11-12 22:16:17,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:16:17,947 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 264.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.35ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 297.61ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:17,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 71 Unknown, 0 Unchecked, 1.35ms Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 297.61ms Time] [2021-11-12 22:16:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-12 22:16:17,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-12 22:16:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 3.1055276381909547) internal successors, (618), 199 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 618 transitions. [2021-11-12 22:16:17,975 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 618 transitions. Word has length 22 [2021-11-12 22:16:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:17,975 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 618 transitions. [2021-11-12 22:16:17,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 618 transitions. [2021-11-12 22:16:17,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 22:16:17,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:17,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:17,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:18,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:18,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash 395376222, now seen corresponding path program 1 times [2021-11-12 22:16:18,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:18,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573803375] [2021-11-12 22:16:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:18,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:18,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:18,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:18,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:16:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:18,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:16:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:16:18,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:16:18,967 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:18,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573803375] [2021-11-12 22:16:18,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573803375] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:16:18,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [228299434] [2021-11-12 22:16:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:18,969 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:16:18,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:16:18,974 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:16:18,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 22:16:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:19,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:16:19,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:16:19,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:16:19,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [228299434] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:16:19,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108403637] [2021-11-12 22:16:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:19,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:16:19,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:16:19,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:16:19,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 22:16:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:20,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 22:16:20,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:16:20,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:16:20,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108403637] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:16:20,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:16:20,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7, 7, 7, 7] total 28 [2021-11-12 22:16:20,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8502602] [2021-11-12 22:16:20,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:20,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:16:20,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:16:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2021-11-12 22:16:20,707 INFO L87 Difference]: Start difference. First operand 200 states and 618 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:21,469 INFO L93 Difference]: Finished difference Result 264 states and 809 transitions. [2021-11-12 22:16:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:16:21,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2021-11-12 22:16:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:21,473 INFO L225 Difference]: With dead ends: 264 [2021-11-12 22:16:21,473 INFO L226 Difference]: Without dead ends: 264 [2021-11-12 22:16:21,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2021-11-12 22:16:21,475 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 57 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 559.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 650.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:21,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 14 Invalid, 135 Unknown, 0 Unchecked, 2.80ms Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 650.82ms Time] [2021-11-12 22:16:21,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-11-12 22:16:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 210. [2021-11-12 22:16:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 3.138755980861244) internal successors, (656), 209 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 656 transitions. [2021-11-12 22:16:21,497 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 656 transitions. Word has length 24 [2021-11-12 22:16:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:21,498 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 656 transitions. [2021-11-12 22:16:21,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 656 transitions. [2021-11-12 22:16:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 22:16:21,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:21,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:21,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:16:21,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:21,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:22,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:16:22,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash 948397002, now seen corresponding path program 2 times [2021-11-12 22:16:22,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:22,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748286243] [2021-11-12 22:16:22,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:16:22,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:22,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:22,116 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:22,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:16:22,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:16:22,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:16:22,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:16:22,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:16:22,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:16:22,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:22,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748286243] [2021-11-12 22:16:22,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748286243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:22,789 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:22,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2021-11-12 22:16:22,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087102801] [2021-11-12 22:16:22,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:22,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:16:22,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:22,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:16:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:16:22,792 INFO L87 Difference]: Start difference. First operand 210 states and 656 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:23,567 INFO L93 Difference]: Finished difference Result 236 states and 730 transitions. [2021-11-12 22:16:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:16:23,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 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 24 [2021-11-12 22:16:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:23,571 INFO L225 Difference]: With dead ends: 236 [2021-11-12 22:16:23,571 INFO L226 Difference]: Without dead ends: 236 [2021-11-12 22:16:23,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:16:23,573 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 63 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 656.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 761.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:23,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 13 Invalid, 178 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 761.50ms Time] [2021-11-12 22:16:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-12 22:16:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 136. [2021-11-12 22:16:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 3.0814814814814815) internal successors, (416), 135 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) [2021-11-12 22:16:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 416 transitions. [2021-11-12 22:16:23,590 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 416 transitions. Word has length 24 [2021-11-12 22:16:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:23,591 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 416 transitions. [2021-11-12 22:16:23,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 416 transitions. [2021-11-12 22:16:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 22:16:23,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:23,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:23,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:23,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:23,814 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:23,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1835035003, now seen corresponding path program 1 times [2021-11-12 22:16:23,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:23,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204678600] [2021-11-12 22:16:23,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:23,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:23,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:23,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:23,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:16:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:23,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:16:23,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:16:24,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:16:24,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:24,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204678600] [2021-11-12 22:16:24,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204678600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:24,165 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:24,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:16:24,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967175361] [2021-11-12 22:16:24,166 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:24,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:16:24,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:16:24,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:16:24,167 INFO L87 Difference]: Start difference. First operand 136 states and 416 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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) [2021-11-12 22:16:24,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:24,546 INFO L93 Difference]: Finished difference Result 168 states and 522 transitions. [2021-11-12 22:16:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:16:24,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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 24 [2021-11-12 22:16:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:24,549 INFO L225 Difference]: With dead ends: 168 [2021-11-12 22:16:24,549 INFO L226 Difference]: Without dead ends: 168 [2021-11-12 22:16:24,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:16:24,551 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 53 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 330.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 369.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:24,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 9 Invalid, 88 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 369.83ms Time] [2021-11-12 22:16:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-12 22:16:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-12 22:16:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 3.125748502994012) internal successors, (522), 167 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:16:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 522 transitions. [2021-11-12 22:16:24,563 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 522 transitions. Word has length 24 [2021-11-12 22:16:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:24,564 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 522 transitions. [2021-11-12 22:16:24,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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) [2021-11-12 22:16:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 522 transitions. [2021-11-12 22:16:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:16:24,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:24,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:24,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:24,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:24,781 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:16:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:24,781 INFO L85 PathProgramCache]: Analyzing trace with hash 119312307, now seen corresponding path program 1 times [2021-11-12 22:16:24,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:24,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010914027] [2021-11-12 22:16:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:24,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:24,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:24,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:24,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9326ef-b61d-4fd0-b93a-070615ea786d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:16:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:25,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-12 22:16:25,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:25,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:25,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2021-11-12 22:16:25,819 INFO L354 Elim1Store]: treesize reduction 163, result has 15.1 percent of original size [2021-11-12 22:16:25,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2021-11-12 22:16:35,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:35,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:35,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:35,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:36,757 INFO L354 Elim1Store]: treesize reduction 1262, result has 15.5 percent of original size [2021-11-12 22:16:36,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 140 treesize of output 312 [2021-11-12 22:16:58,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:58,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:58,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:16:58,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:58,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:16:58,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:17:00,561 INFO L354 Elim1Store]: treesize reduction 2303, result has 9.9 percent of original size [2021-11-12 22:17:00,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 81 case distinctions, treesize of input 136 treesize of output 308 [2021-11-12 22:22:55,028 INFO L354 Elim1Store]: treesize reduction 2894, result has 8.3 percent of original size [2021-11-12 22:22:55,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 6 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 343 treesize of output 473 [2021-11-12 22:23:06,291 WARN L227 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 49 DAG size of output: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:23:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:23:06,465 INFO L328 TraceCheckSpWp]: Computing backward predicates...