./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6cb79ce9bf6ae96f354f809d66b87a6c0b76353 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6cb79ce9bf6ae96f354f809d66b87a6c0b76353 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:00:04,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:04,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:05,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:05,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:05,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:05,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:05,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:05,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:05,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:05,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:05,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:05,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:05,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:05,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:05,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:05,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:05,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:05,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:05,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:05,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:05,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:05,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:05,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:05,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:05,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:05,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:05,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:05,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:05,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:05,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:05,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:05,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:05,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:05,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:05,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:05,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:05,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:05,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:05,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:05,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:05,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:00:05,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:05,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:05,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:05,095 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:05,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:05,097 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:05,097 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:00:05,098 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:05,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:05,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:00:05,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:00:05,103 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:05,104 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:00:05,104 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:00:05,104 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:00:05,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:05,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:05,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:00:05,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:05,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:05,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:05,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:05,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:05,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:05,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:05,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:05,108 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:05,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:05,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:05,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:05,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:05,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:05,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:05,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:05,111 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:00:05,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:00:05,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:05,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:05,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:05,112 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_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6cb79ce9bf6ae96f354f809d66b87a6c0b76353 [2021-10-16 02:00:05,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:05,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:05,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:05,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:05,452 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:05,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-16 02:00:05,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/3bb9e912a/3d059d15d2fe403fb158db3a0da28409/FLAGbccd360ac [2021-10-16 02:00:06,200 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:06,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-16 02:00:06,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/3bb9e912a/3d059d15d2fe403fb158db3a0da28409/FLAGbccd360ac [2021-10-16 02:00:06,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/3bb9e912a/3d059d15d2fe403fb158db3a0da28409 [2021-10-16 02:00:06,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:06,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:06,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:06,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:06,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:06,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63409e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06, skipping insertion in model container [2021-10-16 02:00:06,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:06,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:07,046 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_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-16 02:00:07,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:07,091 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-16 02:00:07,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59d49545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:07, skipping insertion in model container [2021-10-16 02:00:07,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:07,092 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:00:07,095 INFO L168 Benchmark]: Toolchain (without parser) took 662.99 ms. Allocated memory is still 119.5 MB. Free memory was 77.7 MB in the beginning and 83.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:07,097 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 119.5 MB. Free memory is still 96.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:07,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.54 ms. Allocated memory is still 119.5 MB. Free memory was 77.5 MB in the beginning and 83.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:07,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 119.5 MB. Free memory is still 96.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 658.54 ms. Allocated memory is still 119.5 MB. Free memory was 77.5 MB in the beginning and 83.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1050]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:00:09,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:09,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:09,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:09,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:09,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:09,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:09,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:09,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:09,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:09,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:09,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:09,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:09,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:09,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:09,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:09,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:09,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:09,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:09,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:09,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:09,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:09,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:09,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:09,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:09,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:09,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:09,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:09,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:09,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:09,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:09,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:09,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:09,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:09,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:09,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:09,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:09,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:09,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:09,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:09,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:09,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:00:09,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:09,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:09,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:09,814 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:09,814 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:09,815 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:09,815 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:09,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:09,815 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:09,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:09,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:09,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:09,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:09,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:09,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:09,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:09,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:09,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:00:09,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:00:09,818 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:09,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:09,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:09,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:09,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:09,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:00:09,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:09,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:09,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:09,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:09,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:09,820 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:00:09,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:09,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:09,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:09,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:09,821 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_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6cb79ce9bf6ae96f354f809d66b87a6c0b76353 [2021-10-16 02:00:10,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:10,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:10,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:10,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:10,236 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:10,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-16 02:00:10,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/229735d0e/88597423fe444aae89ee08f9d2dec2b6/FLAGd9ab823b0 [2021-10-16 02:00:11,006 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:11,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-16 02:00:11,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/229735d0e/88597423fe444aae89ee08f9d2dec2b6/FLAGd9ab823b0 [2021-10-16 02:00:11,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/data/229735d0e/88597423fe444aae89ee08f9d2dec2b6 [2021-10-16 02:00:11,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:11,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:11,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:11,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:11,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:11,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:11" (1/1) ... [2021-10-16 02:00:11,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56eb7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:11, skipping insertion in model container [2021-10-16 02:00:11,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:11" (1/1) ... [2021-10-16 02:00:11,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:11,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:11,907 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_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-16 02:00:11,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:11,954 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:00:11,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:12,133 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_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-16 02:00:12,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:12,155 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:00:12,310 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_14553638-2a1e-48e1-9865-fe229e788c8c/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-16 02:00:12,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:12,350 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:00:12,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12 WrapperNode [2021-10-16 02:00:12,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:12,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:12,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:00:12,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:00:12,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:12,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:00:12,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:00:12,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:00:12,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:00:12,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:00:12,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:00:12,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:00:12,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:12,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:12,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:00:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:00:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:00:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 02:00:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:00:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:00:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 02:00:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:00:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:00:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:00:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:00:13,010 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 02:00:22,182 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-16 02:00:22,183 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-16 02:00:22,191 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:00:22,191 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:00:22,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:22 BoogieIcfgContainer [2021-10-16 02:00:22,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:00:22,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:00:22,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:00:22,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:00:22,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:00:11" (1/3) ... [2021-10-16 02:00:22,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c78d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:22, skipping insertion in model container [2021-10-16 02:00:22,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12" (2/3) ... [2021-10-16 02:00:22,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c78d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:22, skipping insertion in model container [2021-10-16 02:00:22,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:22" (3/3) ... [2021-10-16 02:00:22,202 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.c [2021-10-16 02:00:22,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:00:22,208 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:00:22,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:00:22,262 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:00:22,262 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:00:22,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:22,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 02:00:22,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:22,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:22,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash -442385418, now seen corresponding path program 1 times [2021-10-16 02:00:22,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:22,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285745233] [2021-10-16 02:00:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:22,311 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:22,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:22,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:22,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:00:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:22,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:22,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:22,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:23,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:23,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285745233] [2021-10-16 02:00:23,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285745233] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:23,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:23,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:23,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028253081] [2021-10-16 02:00:23,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:23,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:23,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:23,076 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 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, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:23,271 INFO L93 Difference]: Finished difference Result 566 states and 965 transitions. [2021-10-16 02:00:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:23,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 37 [2021-10-16 02:00:23,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:23,301 INFO L225 Difference]: With dead ends: 566 [2021-10-16 02:00:23,303 INFO L226 Difference]: Without dead ends: 387 [2021-10-16 02:00:23,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-16 02:00:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-10-16 02:00:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5286458333333333) internal successors, (587), 384 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 587 transitions. [2021-10-16 02:00:23,375 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 587 transitions. Word has length 37 [2021-10-16 02:00:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:23,376 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 587 transitions. [2021-10-16 02:00:23,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 587 transitions. [2021-10-16 02:00:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-16 02:00:23,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:23,381 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:23,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:23,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:23,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:23,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:23,597 INFO L82 PathProgramCache]: Analyzing trace with hash 746604405, now seen corresponding path program 1 times [2021-10-16 02:00:23,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:23,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64526177] [2021-10-16 02:00:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:23,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:23,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:23,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:00:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:23,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:23,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:24,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:24,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:24,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64526177] [2021-10-16 02:00:24,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64526177] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:24,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:24,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:24,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944351996] [2021-10-16 02:00:24,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:24,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:24,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:24,463 INFO L87 Difference]: Start difference. First operand 385 states and 587 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:25,124 INFO L93 Difference]: Finished difference Result 879 states and 1353 transitions. [2021-10-16 02:00:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:25,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 60 [2021-10-16 02:00:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:25,131 INFO L225 Difference]: With dead ends: 879 [2021-10-16 02:00:25,131 INFO L226 Difference]: Without dead ends: 628 [2021-10-16 02:00:25,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-10-16 02:00:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2021-10-16 02:00:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 625 states have (on average 1.52) internal successors, (950), 625 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 950 transitions. [2021-10-16 02:00:25,202 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 950 transitions. Word has length 60 [2021-10-16 02:00:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:25,203 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 950 transitions. [2021-10-16 02:00:25,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 950 transitions. [2021-10-16 02:00:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-10-16 02:00:25,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:25,216 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:25,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:00:25,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:25,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:25,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1749353389, now seen corresponding path program 1 times [2021-10-16 02:00:25,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:25,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519165845] [2021-10-16 02:00:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:25,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:25,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:25,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:25,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:00:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:25,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:25,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 02:00:26,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 02:00:26,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:26,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519165845] [2021-10-16 02:00:26,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519165845] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:26,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:26,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:26,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228392886] [2021-10-16 02:00:26,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:26,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:26,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:26,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:26,678 INFO L87 Difference]: Start difference. First operand 626 states and 950 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:27,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:27,552 INFO L93 Difference]: Finished difference Result 1238 states and 1888 transitions. [2021-10-16 02:00:27,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 119 [2021-10-16 02:00:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:27,559 INFO L225 Difference]: With dead ends: 1238 [2021-10-16 02:00:27,559 INFO L226 Difference]: Without dead ends: 746 [2021-10-16 02:00:27,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-10-16 02:00:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-10-16 02:00:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.516778523489933) internal successors, (1130), 745 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1130 transitions. [2021-10-16 02:00:27,609 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1130 transitions. Word has length 119 [2021-10-16 02:00:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:27,609 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 1130 transitions. [2021-10-16 02:00:27,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1130 transitions. [2021-10-16 02:00:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-16 02:00:27,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:27,631 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:27,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:27,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:27,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:27,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:27,833 INFO L82 PathProgramCache]: Analyzing trace with hash 433077792, now seen corresponding path program 1 times [2021-10-16 02:00:27,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:27,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14322279] [2021-10-16 02:00:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:27,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:27,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:27,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:27,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:00:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:28,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:28,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-16 02:00:28,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-16 02:00:29,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:29,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14322279] [2021-10-16 02:00:29,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14322279] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:29,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:29,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:29,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369766496] [2021-10-16 02:00:29,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:29,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:29,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:29,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:29,289 INFO L87 Difference]: Start difference. First operand 746 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:30,358 INFO L93 Difference]: Finished difference Result 1605 states and 2443 transitions. [2021-10-16 02:00:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:30,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 143 [2021-10-16 02:00:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:30,366 INFO L225 Difference]: With dead ends: 1605 [2021-10-16 02:00:30,366 INFO L226 Difference]: Without dead ends: 993 [2021-10-16 02:00:30,368 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-10-16 02:00:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-10-16 02:00:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5141129032258065) internal successors, (1502), 992 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1502 transitions. [2021-10-16 02:00:30,409 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1502 transitions. Word has length 143 [2021-10-16 02:00:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:30,410 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1502 transitions. [2021-10-16 02:00:30,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1502 transitions. [2021-10-16 02:00:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-16 02:00:30,416 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:30,416 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:30,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:30,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:30,625 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:30,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1035961974, now seen corresponding path program 1 times [2021-10-16 02:00:30,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:30,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468398716] [2021-10-16 02:00:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:30,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:30,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:30,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:00:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:31,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-16 02:00:31,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:31,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-16 02:00:31,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-16 02:00:31,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:31,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-10-16 02:00:31,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:31,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-10-16 02:00:31,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 336 treesize of output 319 [2021-10-16 02:00:32,097 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-10-16 02:00:32,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 717 treesize of output 669 [2021-10-16 02:00:32,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:32,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-10-16 02:00:32,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 221 treesize of output 210 [2021-10-16 02:00:32,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 101 [2021-10-16 02:00:32,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-10-16 02:00:32,457 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-10-16 02:00:32,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-10-16 02:00:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:32,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-10-16 02:00:32,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 37 treesize of output 25 [2021-10-16 02:00:32,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 10 [2021-10-16 02:00:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-16 02:00:33,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:33,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-10-16 02:00:33,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-10-16 02:00:33,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-10-16 02:00:33,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-10-16 02:00:33,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-10-16 02:00:33,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-10-16 02:00:33,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:33,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-10-16 02:00:34,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:34,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-10-16 02:00:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-16 02:00:34,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:34,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468398716] [2021-10-16 02:00:34,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468398716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:34,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:34,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-16 02:00:34,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132898283] [2021-10-16 02:00:34,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:00:34,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:00:34,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:00:34,517 INFO L87 Difference]: Start difference. First operand 993 states and 1502 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:02,879 INFO L93 Difference]: Finished difference Result 1983 states and 3000 transitions. [2021-10-16 02:01:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:01:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 166 [2021-10-16 02:01:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:02,889 INFO L225 Difference]: With dead ends: 1983 [2021-10-16 02:01:02,889 INFO L226 Difference]: Without dead ends: 993 [2021-10-16 02:01:02,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 268.9ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:01:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-10-16 02:01:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-10-16 02:01:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5131048387096775) internal successors, (1501), 992 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1501 transitions. [2021-10-16 02:01:02,938 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1501 transitions. Word has length 166 [2021-10-16 02:01:02,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:02,939 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1501 transitions. [2021-10-16 02:01:02,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:02,940 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1501 transitions. [2021-10-16 02:01:02,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-16 02:01:02,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:02,945 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:02,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:03,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:03,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:03,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1534397000, now seen corresponding path program 1 times [2021-10-16 02:01:03,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:03,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174329890] [2021-10-16 02:01:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:03,167 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:03,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:03,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:03,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:01:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:05,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-16 02:01:05,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:06,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5171 treesize of output 5135 [2021-10-16 02:01:06,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:01:06,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7195 [2021-10-16 02:01:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7619 treesize of output 7245 [2021-10-16 02:01:06,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:01:06,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5484 treesize of output 5077 [2021-10-16 02:01:44,375 WARN L207 SmtUtils]: Spent 38.10 s on a formula simplification. DAG size of input: 31 DAG size of output: 9 [2021-10-16 02:01:44,375 INFO L354 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2021-10-16 02:01:44,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 5659 treesize of output 5392 [2021-10-16 02:01:44,421 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-16 02:01:44,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 5598 treesize of output 5389 [2021-10-16 02:01:44,430 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 02:04:27,488 WARN L207 SmtUtils]: Spent 2.72 m on a formula simplification. DAG size of input: 110 DAG size of output: 29 [2021-10-16 02:04:27,488 INFO L354 Elim1Store]: treesize reduction 1868, result has 2.5 percent of original size [2021-10-16 02:04:27,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 5569 treesize of output 5409 [2021-10-16 02:04:27,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5642 treesize of output 5426 [2021-10-16 02:04:27,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:04:27,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8310 [2021-10-16 02:04:27,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:04:27,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13065 [2021-10-16 02:04:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7653 treesize of output 6817 [2021-10-16 02:04:27,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:04:27,887 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-10-16 02:04:27,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 66 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5023 treesize of output 4892 [2021-10-16 02:04:27,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 4811 treesize of output 4815 [2021-10-16 02:04:27,945 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 02:04:27,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4815 treesize of output 4803 [2021-10-16 02:04:28,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4808 treesize of output 4798 [2021-10-16 02:05:07,411 WARN L207 SmtUtils]: Spent 39.36 s on a formula simplification. DAG size of input: 41 DAG size of output: 15 [2021-10-16 02:05:07,412 INFO L354 Elim1Store]: treesize reduction 130, result has 13.9 percent of original size [2021-10-16 02:05:07,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 4801 treesize of output 4709 [2021-10-16 02:05:07,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:05:07,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174329890] [2021-10-16 02:05:07,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-10-16 02:05:07,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1483112698] [2021-10-16 02:05:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:05:07,456 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:05:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:05:07,469 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:05:07,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-16 02:07:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:07:20,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-16 02:07:20,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@1891eceb [2021-10-16 02:07:20,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834241593] [2021-10-16 02:07:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:07:20,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:07:20,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:07:20,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:07:20,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 02:07:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:07:23,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-16 02:07:23,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@1891eceb [2021-10-16 02:07:23,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:07:23,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-16 02:07:23,686 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-16 02:07:23,686 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-16 02:07:23,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:07:23,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:07:23,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:07:24,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-10-16 02:07:24,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:07:24,301 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:07:24,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:07:24 BoogieIcfgContainer [2021-10-16 02:07:24,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:07:24,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:07:24,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:07:24,350 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:07:24,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:22" (3/4) ... [2021-10-16 02:07:24,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:07:24,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:07:24,354 INFO L168 Benchmark]: Toolchain (without parser) took 433095.70 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 53.0 MB in the beginning and 43.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,355 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory is still 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:07:24,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1091.01 ms. Allocated memory is still 77.6 MB. Free memory was 52.8 MB in the beginning and 47.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.66 ms. Allocated memory is still 77.6 MB. Free memory was 47.6 MB in the beginning and 43.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,356 INFO L168 Benchmark]: Boogie Preprocessor took 143.54 ms. Allocated memory is still 77.6 MB. Free memory was 43.1 MB in the beginning and 35.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,357 INFO L168 Benchmark]: RCFGBuilder took 9586.43 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 49.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,357 INFO L168 Benchmark]: TraceAbstraction took 422153.15 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 48.6 MB in the beginning and 44.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:24,357 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 117.4 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:07:24,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory is still 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1091.01 ms. Allocated memory is still 77.6 MB. Free memory was 52.8 MB in the beginning and 47.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.66 ms. Allocated memory is still 77.6 MB. Free memory was 47.6 MB in the beginning and 43.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 143.54 ms. Allocated memory is still 77.6 MB. Free memory was 43.1 MB in the beginning and 35.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9586.43 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 49.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 422153.15 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 48.6 MB in the beginning and 44.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 117.4 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1757]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1601] EXPR s->session [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.new_cipher [L1601] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1602] COND FALSE !(! tmp___9) [L1608] ret = __VERIFIER_nondet_int() [L1609] COND TRUE blastFlag == 2 [L1610] blastFlag = 3 [L1622] COND FALSE !(ret <= 0) [L1627] s->state = 8672 [L1628] s->init_num = 0 [L1629] COND FALSE !(! tmp___10) [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1638] ret = __VERIFIER_nondet_int() [L1639] COND TRUE blastFlag == 3 [L1640] blastFlag = 4 [L1644] COND FALSE !(ret <= 0) [L1649] s->state = 8448 [L1650] s->hit [L1650] COND TRUE s->hit [L1651] EXPR s->s3 [L1651] (s->s3)->tmp.next_state = 8640 [L1655] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1581] ret = __VERIFIER_nondet_int() [L1582] COND TRUE blastFlag == 4 [L1757] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 422045.9ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 59.9ms, AutomataDifference: 31261.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1545 SDtfs, 1147 SDslu, 2282 SDs, 0 SdLazy, 517 SolverSat, 73 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 30069.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 1026 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 325.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=993occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 255.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 247.2ms SsaConstructionTime, 1163.8ms SatisfiabilityAnalysisTime, 6050.4ms InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1040 ConstructedInterpolants, 1 QuantifiedInterpolants, 2069 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1459 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 912/912 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:07:24,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14553638-2a1e-48e1-9865-fe229e788c8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...