./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/s3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/s3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43b1f6793ee5eec863ad9b535d4bdfa9eec9aa4f ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/s3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43b1f6793ee5eec863ad9b535d4bdfa9eec9aa4f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:57:33,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:57:33,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:57:33,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:57:33,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:57:33,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:57:33,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:57:33,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:57:33,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:57:33,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:57:33,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:57:33,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:57:33,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:57:33,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:57:33,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:57:33,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:57:33,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:57:33,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:57:33,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:57:33,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:57:33,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:57:33,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:57:33,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:57:33,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:57:33,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:57:33,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:57:33,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:57:33,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:57:33,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:57:33,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:57:33,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:57:33,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:57:33,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:57:33,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:57:33,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:57:33,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:57:33,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:57:33,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:57:33,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:57:33,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:57:33,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:57:33,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:57:33,176 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:57:33,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:57:33,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:57:33,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:57:33,177 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:57:33,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:57:33,178 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:57:33,178 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:57:33,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:57:33,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:57:33,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:57:33,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:57:33,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:57:33,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:57:33,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:57:33,180 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:57:33,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:57:33,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:57:33,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:57:33,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:57:33,181 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan 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(__VERIFIER_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 -> 43b1f6793ee5eec863ad9b535d4bdfa9eec9aa4f [2019-12-07 10:57:33,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:57:33,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:57:33,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:57:33,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:57:33,294 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:57:33,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/../../sv-benchmarks/c/loops/s3.i [2019-12-07 10:57:33,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c8fec7c19/f50c5f5650ae40cdbda798c329950214/FLAG0ef45f20a [2019-12-07 10:57:33,835 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:57:33,836 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/sv-benchmarks/c/loops/s3.i [2019-12-07 10:57:33,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c8fec7c19/f50c5f5650ae40cdbda798c329950214/FLAG0ef45f20a [2019-12-07 10:57:34,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c8fec7c19/f50c5f5650ae40cdbda798c329950214 [2019-12-07 10:57:34,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:57:34,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:57:34,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:57:34,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:57:34,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:57:34,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:57:34" (1/1) ... [2019-12-07 10:57:34,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f2f420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:34, skipping insertion in model container [2019-12-07 10:57:34,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:57:34" (1/1) ... [2019-12-07 10:57:34,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:57:34,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:57:34,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:57:34,635 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) [2019-12-07 10:57:34,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@508c47f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:34, skipping insertion in model container [2019-12-07 10:57:34,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:57:34,636 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:57:34,638 INFO L168 Benchmark]: Toolchain (without parser) took 317.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:57:34,638 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:57:34,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:57:34,640 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1035]: 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 0.1.25-f470102 [2019-12-07 10:57:35,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:57:35,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:57:35,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:57:35,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:57:35,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:57:35,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:57:35,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:57:35,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:57:35,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:57:35,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:57:35,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:57:35,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:57:35,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:57:35,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:57:35,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:57:35,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:57:35,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:57:35,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:57:35,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:57:35,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:57:35,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:57:35,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:57:35,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:57:35,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:57:35,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:57:35,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:57:35,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:57:35,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:57:35,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:57:35,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:57:35,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:57:35,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:57:35,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:57:35,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:57:35,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:57:35,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:57:35,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:57:35,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:57:35,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:57:35,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:57:35,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:57:35,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:57:35,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:57:35,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:57:35,860 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:57:35,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:57:35,860 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:57:35,861 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:57:35,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:57:35,861 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:57:35,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:57:35,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:57:35,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:57:35,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:57:35,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:57:35,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:57:35,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:57:35,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:57:35,865 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan 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(__VERIFIER_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 -> 43b1f6793ee5eec863ad9b535d4bdfa9eec9aa4f [2019-12-07 10:57:36,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:57:36,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:57:36,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:57:36,045 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:57:36,045 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:57:36,046 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/../../sv-benchmarks/c/loops/s3.i [2019-12-07 10:57:36,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c409c5a7f/dcc213637a444e159c7ed84b708bf735/FLAG46dabe316 [2019-12-07 10:57:36,594 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:57:36,594 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/sv-benchmarks/c/loops/s3.i [2019-12-07 10:57:36,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c409c5a7f/dcc213637a444e159c7ed84b708bf735/FLAG46dabe316 [2019-12-07 10:57:37,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/data/c409c5a7f/dcc213637a444e159c7ed84b708bf735 [2019-12-07 10:57:37,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:57:37,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:57:37,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:57:37,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:57:37,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:57:37,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37, skipping insertion in model container [2019-12-07 10:57:37,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:57:37,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:57:37,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:57:37,473 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:57:37,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:57:37,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:57:37,539 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:57:37,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:57:37,608 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:57:37,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37 WrapperNode [2019-12-07 10:57:37,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:57:37,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:57:37,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:57:37,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:57:37,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:57:37,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:57:37,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:57:37,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:57:37,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... [2019-12-07 10:57:37,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:57:37,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:57:37,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:57:37,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:57:37,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:57:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:57:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 10:57:37,889 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 10:57:47,776 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-12-07 10:57:47,777 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-12-07 10:57:47,778 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:57:47,778 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 10:57:47,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:57:47 BoogieIcfgContainer [2019-12-07 10:57:47,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:57:47,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:57:47,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:57:47,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:57:47,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:57:37" (1/3) ... [2019-12-07 10:57:47,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ae836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:57:47, skipping insertion in model container [2019-12-07 10:57:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:57:37" (2/3) ... [2019-12-07 10:57:47,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ae836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:57:47, skipping insertion in model container [2019-12-07 10:57:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:57:47" (3/3) ... [2019-12-07 10:57:47,784 INFO L109 eAbstractionObserver]: Analyzing ICFG s3.i [2019-12-07 10:57:47,790 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:57:47,795 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:57:47,802 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:57:47,818 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:57:47,818 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:57:47,819 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:57:47,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:57:47,819 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:57:47,819 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:57:47,819 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:57:47,819 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:57:47,835 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-12-07 10:57:47,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:57:47,840 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:57:47,841 INFO L410 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] [2019-12-07 10:57:47,841 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:57:47,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:57:47,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2019-12-07 10:57:47,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:57:47,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276121452] [2019-12-07 10:57:47,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 10:57:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:57:48,000 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:57:48,006 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:57:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:57:48,034 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:57:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:57:48,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276121452] [2019-12-07 10:57:48,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:57:48,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:57:48,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902358283] [2019-12-07 10:57:48,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:57:48,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:57:48,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:57:48,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:48,069 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2019-12-07 10:57:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:57:48,150 INFO L93 Difference]: Finished difference Result 375 states and 626 transitions. [2019-12-07 10:57:48,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:57:48,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 10:57:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:57:48,161 INFO L225 Difference]: With dead ends: 375 [2019-12-07 10:57:48,162 INFO L226 Difference]: Without dead ends: 217 [2019-12-07 10:57:48,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-12-07 10:57:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2019-12-07 10:57:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-07 10:57:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 320 transitions. [2019-12-07 10:57:48,202 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 320 transitions. Word has length 24 [2019-12-07 10:57:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:57:48,202 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 320 transitions. [2019-12-07 10:57:48,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:57:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 320 transitions. [2019-12-07 10:57:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 10:57:48,205 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:57:48,205 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-12-07 10:57:48,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:57:48,406 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:57:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:57:48,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1495258694, now seen corresponding path program 1 times [2019-12-07 10:57:48,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:57:48,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834621720] [2019-12-07 10:57:48,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 10:57:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:57:48,612 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:57:48,614 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:57:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:57:48,622 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:57:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:57:48,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834621720] [2019-12-07 10:57:48,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:57:48,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:57:48,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539470331] [2019-12-07 10:57:48,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:57:48,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:57:48,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:57:48,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:48,632 INFO L87 Difference]: Start difference. First operand 217 states and 320 transitions. Second operand 4 states. [2019-12-07 10:57:50,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:57:50,699 INFO L93 Difference]: Finished difference Result 528 states and 787 transitions. [2019-12-07 10:57:50,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:57:50,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2019-12-07 10:57:50,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:57:50,703 INFO L225 Difference]: With dead ends: 528 [2019-12-07 10:57:50,703 INFO L226 Difference]: Without dead ends: 421 [2019-12-07 10:57:50,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:50,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-12-07 10:57:50,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2019-12-07 10:57:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2019-12-07 10:57:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 622 transitions. [2019-12-07 10:57:50,727 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 622 transitions. Word has length 41 [2019-12-07 10:57:50,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:57:50,727 INFO L462 AbstractCegarLoop]: Abstraction has 421 states and 622 transitions. [2019-12-07 10:57:50,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:57:50,727 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 622 transitions. [2019-12-07 10:57:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-12-07 10:57:50,731 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:57:50,731 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-12-07 10:57:50,932 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:57:50,932 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:57:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:57:50,933 INFO L82 PathProgramCache]: Analyzing trace with hash 924360661, now seen corresponding path program 1 times [2019-12-07 10:57:50,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:57:50,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952355896] [2019-12-07 10:57:50,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 10:57:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:57:51,151 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:57:51,156 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:57:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 10:57:51,170 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:57:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 10:57:51,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952355896] [2019-12-07 10:57:51,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:57:51,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:57:51,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939991269] [2019-12-07 10:57:51,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:57:51,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:57:51,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:57:51,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:51,184 INFO L87 Difference]: Start difference. First operand 421 states and 622 transitions. Second operand 4 states. [2019-12-07 10:57:53,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:57:53,254 INFO L93 Difference]: Finished difference Result 939 states and 1394 transitions. [2019-12-07 10:57:53,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:57:53,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-12-07 10:57:53,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:57:53,258 INFO L225 Difference]: With dead ends: 939 [2019-12-07 10:57:53,259 INFO L226 Difference]: Without dead ends: 628 [2019-12-07 10:57:53,261 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:57:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-12-07 10:57:53,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2019-12-07 10:57:53,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-12-07 10:57:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 927 transitions. [2019-12-07 10:57:53,286 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 927 transitions. Word has length 80 [2019-12-07 10:57:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:57:53,286 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 927 transitions. [2019-12-07 10:57:53,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:57:53,287 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 927 transitions. [2019-12-07 10:57:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-12-07 10:57:53,291 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:57:53,291 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2019-12-07 10:57:53,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:57:53,493 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:57:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:57:53,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1855651051, now seen corresponding path program 1 times [2019-12-07 10:57:53,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:57:53,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270093275] [2019-12-07 10:57:53,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 10:57:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:57:53,832 INFO L264 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:57:53,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:57:53,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:57:53,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:57:53,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:57:53,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:57:53,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:57:53,867 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:57:53,930 INFO L343 Elim1Store]: treesize reduction 190, result has 12.8 percent of original size [2019-12-07 10:57:53,931 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 38 [2019-12-07 10:57:53,931 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:57:53,946 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:57:53,947 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:57:53,947 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:38 [2019-12-07 10:57:53,976 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:57:53,977 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:57:53,977 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:57:54,185 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 41 [2019-12-07 10:57:54,185 INFO L343 Elim1Store]: treesize reduction 850, result has 7.0 percent of original size [2019-12-07 10:57:54,186 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 74 treesize of output 91 [2019-12-07 10:57:54,187 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:57:54,227 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:57:54,227 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:57:54,227 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:77 [2019-12-07 10:57:54,291 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 10:57:54,292 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 110 treesize of output 38 [2019-12-07 10:57:54,294 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:57:54,295 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:57:54,296 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:57:54,296 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:10 [2019-12-07 10:57:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 10:57:54,337 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:57:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 10:57:54,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270093275] [2019-12-07 10:57:54,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:57:54,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2019-12-07 10:57:54,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273176741] [2019-12-07 10:57:54,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 10:57:54,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:57:54,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:57:54,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:57:54,403 INFO L87 Difference]: Start difference. First operand 628 states and 927 transitions. Second operand 7 states. [2019-12-07 10:58:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:58:46,445 INFO L93 Difference]: Finished difference Result 2264 states and 3359 transitions. [2019-12-07 10:58:46,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:58:46,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2019-12-07 10:58:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:58:46,455 INFO L225 Difference]: With dead ends: 2264 [2019-12-07 10:58:46,455 INFO L226 Difference]: Without dead ends: 1643 [2019-12-07 10:58:46,457 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:58:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2019-12-07 10:58:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 753. [2019-12-07 10:58:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2019-12-07 10:58:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1136 transitions. [2019-12-07 10:58:46,494 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1136 transitions. Word has length 100 [2019-12-07 10:58:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:58:46,494 INFO L462 AbstractCegarLoop]: Abstraction has 753 states and 1136 transitions. [2019-12-07 10:58:46,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 10:58:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1136 transitions. [2019-12-07 10:58:46,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-12-07 10:58:46,496 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:58:46,496 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2019-12-07 10:58:46,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:58:46,697 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:58:46,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:58:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1223162519, now seen corresponding path program 1 times [2019-12-07 10:58:46,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:58:46,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615240084] [2019-12-07 10:58:46,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 10:58:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:58:47,032 INFO L264 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:58:47,036 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:58:47,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,044 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:58:47,053 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:58:47,053 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:58:47,054 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:58:47,054 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:58:47,054 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:58:47,297 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 10:58:47,298 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 10:58:47,298 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 10:58:47,298 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:58:47,330 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:58:47,331 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:58:47,331 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 10:58:47,384 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 10:58:47,384 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 10:58:47,386 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:58:47,388 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:58:47,388 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:58:47,388 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 10:58:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:58:47,426 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:58:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:58:47,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615240084] [2019-12-07 10:58:47,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:58:47,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-12-07 10:58:47,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104391836] [2019-12-07 10:58:47,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:58:47,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:58:47,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:58:47,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:58:47,477 INFO L87 Difference]: Start difference. First operand 753 states and 1136 transitions. Second operand 5 states. [2019-12-07 10:59:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:59:09,964 INFO L93 Difference]: Finished difference Result 1757 states and 2634 transitions. [2019-12-07 10:59:09,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:59:09,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-12-07 10:59:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:59:09,973 INFO L225 Difference]: With dead ends: 1757 [2019-12-07 10:59:09,973 INFO L226 Difference]: Without dead ends: 1011 [2019-12-07 10:59:09,974 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:59:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2019-12-07 10:59:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 873. [2019-12-07 10:59:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2019-12-07 10:59:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1341 transitions. [2019-12-07 10:59:10,000 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1341 transitions. Word has length 100 [2019-12-07 10:59:10,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:59:10,001 INFO L462 AbstractCegarLoop]: Abstraction has 873 states and 1341 transitions. [2019-12-07 10:59:10,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:59:10,001 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1341 transitions. [2019-12-07 10:59:10,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-12-07 10:59:10,002 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:59:10,002 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:59:10,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:59:10,204 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:59:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:59:10,204 INFO L82 PathProgramCache]: Analyzing trace with hash -517718612, now seen corresponding path program 1 times [2019-12-07 10:59:10,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:59:10,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708861893] [2019-12-07 10:59:10,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 10:59:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:59:10,938 INFO L264 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:59:10,941 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:59:10,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,953 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,955 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:10,955 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:10,955 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:10,956 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:10,956 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:10,956 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:11,190 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 10:59:11,191 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 10:59:11,191 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 10:59:11,191 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:59:11,230 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:59:11,230 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:59:11,230 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 10:59:11,279 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 10:59:11,280 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 10:59:11,281 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:59:11,282 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:59:11,282 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:59:11,282 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 10:59:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:59:11,304 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:59:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:59:11,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708861893] [2019-12-07 10:59:11,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:59:11,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 10:59:11,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010109951] [2019-12-07 10:59:11,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:59:11,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:59:11,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:59:11,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:59:11,344 INFO L87 Difference]: Start difference. First operand 873 states and 1341 transitions. Second operand 6 states. [2019-12-07 10:59:39,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:59:39,433 INFO L93 Difference]: Finished difference Result 2393 states and 3607 transitions. [2019-12-07 10:59:39,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:59:39,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2019-12-07 10:59:39,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:59:39,444 INFO L225 Difference]: With dead ends: 2393 [2019-12-07 10:59:39,444 INFO L226 Difference]: Without dead ends: 1527 [2019-12-07 10:59:39,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:59:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2019-12-07 10:59:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 928. [2019-12-07 10:59:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2019-12-07 10:59:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1410 transitions. [2019-12-07 10:59:39,479 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1410 transitions. Word has length 115 [2019-12-07 10:59:39,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:59:39,480 INFO L462 AbstractCegarLoop]: Abstraction has 928 states and 1410 transitions. [2019-12-07 10:59:39,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:59:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1410 transitions. [2019-12-07 10:59:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-12-07 10:59:39,481 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:59:39,481 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:59:39,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 10:59:39,682 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:59:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:59:39,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1265744566, now seen corresponding path program 1 times [2019-12-07 10:59:39,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:59:39,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365553665] [2019-12-07 10:59:39,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 10:59:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:59:40,165 INFO L264 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:59:40,167 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:59:40,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:59:40,182 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:40,182 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:40,183 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:40,183 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:40,183 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:59:40,407 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 10:59:40,407 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 10:59:40,407 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 10:59:40,408 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:59:40,445 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:59:40,445 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:59:40,445 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 10:59:40,497 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 10:59:40,497 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 10:59:40,498 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:59:40,500 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:59:40,500 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:59:40,500 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 10:59:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:59:40,524 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:59:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 10:59:40,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365553665] [2019-12-07 10:59:40,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:59:40,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 10:59:40,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85275798] [2019-12-07 10:59:40,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:59:40,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:59:40,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:59:40,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:59:40,562 INFO L87 Difference]: Start difference. First operand 928 states and 1410 transitions. Second operand 6 states. [2019-12-07 11:00:12,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:00:12,992 INFO L93 Difference]: Finished difference Result 2655 states and 3990 transitions. [2019-12-07 11:00:12,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:00:12,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2019-12-07 11:00:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:00:13,000 INFO L225 Difference]: With dead ends: 2655 [2019-12-07 11:00:13,000 INFO L226 Difference]: Without dead ends: 1734 [2019-12-07 11:00:13,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:00:13,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2019-12-07 11:00:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1078. [2019-12-07 11:00:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2019-12-07 11:00:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1621 transitions. [2019-12-07 11:00:13,035 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1621 transitions. Word has length 115 [2019-12-07 11:00:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:00:13,036 INFO L462 AbstractCegarLoop]: Abstraction has 1078 states and 1621 transitions. [2019-12-07 11:00:13,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:00:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1621 transitions. [2019-12-07 11:00:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-12-07 11:00:13,038 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:00:13,038 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2019-12-07 11:00:13,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:00:13,238 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:00:13,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:00:13,239 INFO L82 PathProgramCache]: Analyzing trace with hash -647023955, now seen corresponding path program 1 times [2019-12-07 11:00:13,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:00:13,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153950253] [2019-12-07 11:00:13,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 11:00:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:00:13,634 INFO L264 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:00:13,636 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:00:13,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:13,649 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:13,649 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:13,650 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:13,650 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:13,650 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:13,879 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:00:13,880 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:00:13,880 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:00:13,880 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:00:13,916 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:00:13,916 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:00:13,916 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:00:13,964 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:00:13,965 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:00:13,965 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:00:13,967 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:00:13,967 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:00:13,967 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:00:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:00:13,997 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:00:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:00:14,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153950253] [2019-12-07 11:00:14,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:00:14,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:00:14,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193314169] [2019-12-07 11:00:14,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:00:14,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:00:14,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:00:14,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:00:14,041 INFO L87 Difference]: Start difference. First operand 1078 states and 1621 transitions. Second operand 6 states. [2019-12-07 11:00:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:00:48,298 INFO L93 Difference]: Finished difference Result 2686 states and 3996 transitions. [2019-12-07 11:00:48,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:00:48,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2019-12-07 11:00:48,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:00:48,307 INFO L225 Difference]: With dead ends: 2686 [2019-12-07 11:00:48,307 INFO L226 Difference]: Without dead ends: 1797 [2019-12-07 11:00:48,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:00:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2019-12-07 11:00:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1199. [2019-12-07 11:00:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-12-07 11:00:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1800 transitions. [2019-12-07 11:00:48,353 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1800 transitions. Word has length 115 [2019-12-07 11:00:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:00:48,354 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1800 transitions. [2019-12-07 11:00:48,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:00:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1800 transitions. [2019-12-07 11:00:48,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-12-07 11:00:48,355 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:00:48,356 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:00:48,556 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 11:00:48,556 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:00:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:00:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash -849536469, now seen corresponding path program 1 times [2019-12-07 11:00:48,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:00:48,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080369753] [2019-12-07 11:00:48,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 11:00:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:00:48,958 INFO L264 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:00:48,959 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:00:48,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,967 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:00:48,973 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:48,974 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:48,974 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:48,974 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:48,975 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:00:49,211 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:00:49,212 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:00:49,212 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:00:49,212 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:00:49,246 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:00:49,246 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:00:49,246 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:00:49,297 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:00:49,297 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:00:49,298 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:00:49,299 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:00:49,299 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:00:49,299 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:00:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:00:49,334 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:00:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:00:49,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080369753] [2019-12-07 11:00:49,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:00:49,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:00:49,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299736073] [2019-12-07 11:00:49,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:00:49,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:00:49,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:00:49,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:00:49,376 INFO L87 Difference]: Start difference. First operand 1199 states and 1800 transitions. Second operand 6 states. [2019-12-07 11:01:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:01:35,656 INFO L93 Difference]: Finished difference Result 3051 states and 4541 transitions. [2019-12-07 11:01:35,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:01:35,658 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2019-12-07 11:01:35,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:01:35,665 INFO L225 Difference]: With dead ends: 3051 [2019-12-07 11:01:35,665 INFO L226 Difference]: Without dead ends: 1859 [2019-12-07 11:01:35,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:01:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2019-12-07 11:01:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1215. [2019-12-07 11:01:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2019-12-07 11:01:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1807 transitions. [2019-12-07 11:01:35,699 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1807 transitions. Word has length 116 [2019-12-07 11:01:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:01:35,699 INFO L462 AbstractCegarLoop]: Abstraction has 1215 states and 1807 transitions. [2019-12-07 11:01:35,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:01:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1807 transitions. [2019-12-07 11:01:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-12-07 11:01:35,701 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:01:35,701 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 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] [2019-12-07 11:01:35,902 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 11:01:35,903 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:01:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:01:35,903 INFO L82 PathProgramCache]: Analyzing trace with hash -710278962, now seen corresponding path program 1 times [2019-12-07 11:01:35,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:01:35,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651592508] [2019-12-07 11:01:35,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 11:01:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:01:36,341 INFO L264 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:01:36,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:01:36,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:01:36,359 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:01:36,359 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:01:36,360 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:01:36,360 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:01:36,360 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:01:36,610 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:01:36,611 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:01:36,611 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:01:36,611 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:01:36,649 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:01:36,649 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:01:36,650 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:01:36,699 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:01:36,699 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:01:36,700 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:01:36,701 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:01:36,701 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:01:36,701 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:01:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:01:36,731 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:01:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:01:36,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651592508] [2019-12-07 11:01:36,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:01:36,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:01:36,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515011687] [2019-12-07 11:01:36,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:01:36,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:01:36,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:01:36,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:01:36,775 INFO L87 Difference]: Start difference. First operand 1215 states and 1807 transitions. Second operand 6 states. [2019-12-07 11:02:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:02:12,247 INFO L93 Difference]: Finished difference Result 2781 states and 4101 transitions. [2019-12-07 11:02:12,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:02:12,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2019-12-07 11:02:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:02:12,256 INFO L225 Difference]: With dead ends: 2781 [2019-12-07 11:02:12,256 INFO L226 Difference]: Without dead ends: 1782 [2019-12-07 11:02:12,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:02:12,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2019-12-07 11:02:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1226. [2019-12-07 11:02:12,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1226 states. [2019-12-07 11:02:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1813 transitions. [2019-12-07 11:02:12,297 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1813 transitions. Word has length 116 [2019-12-07 11:02:12,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:02:12,297 INFO L462 AbstractCegarLoop]: Abstraction has 1226 states and 1813 transitions. [2019-12-07 11:02:12,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:02:12,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1813 transitions. [2019-12-07 11:02:12,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-12-07 11:02:12,300 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:02:12,300 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:02:12,500 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 11:02:12,501 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:02:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:02:12,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1134529903, now seen corresponding path program 1 times [2019-12-07 11:02:12,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:02:12,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424017202] [2019-12-07 11:02:12,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 11:02:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:02:12,972 INFO L264 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:02:12,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:02:12,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:12,986 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:12,987 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:12,987 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:12,987 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:12,988 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:13,216 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:02:13,216 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:02:13,216 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:02:13,216 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:02:13,254 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:02:13,254 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:02:13,255 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:02:13,306 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:02:13,306 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:02:13,307 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:02:13,308 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:02:13,308 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:02:13,308 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:02:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:02:13,335 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:02:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:02:13,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424017202] [2019-12-07 11:02:13,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:02:13,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:02:13,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264366466] [2019-12-07 11:02:13,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:02:13,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:02:13,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:02:13,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:02:13,381 INFO L87 Difference]: Start difference. First operand 1226 states and 1813 transitions. Second operand 6 states. [2019-12-07 11:02:48,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:02:48,002 INFO L93 Difference]: Finished difference Result 3071 states and 4511 transitions. [2019-12-07 11:02:48,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:02:48,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2019-12-07 11:02:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:02:48,011 INFO L225 Difference]: With dead ends: 3071 [2019-12-07 11:02:48,011 INFO L226 Difference]: Without dead ends: 1856 [2019-12-07 11:02:48,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:02:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2019-12-07 11:02:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1238. [2019-12-07 11:02:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2019-12-07 11:02:48,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1815 transitions. [2019-12-07 11:02:48,047 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1815 transitions. Word has length 117 [2019-12-07 11:02:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:02:48,048 INFO L462 AbstractCegarLoop]: Abstraction has 1238 states and 1815 transitions. [2019-12-07 11:02:48,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:02:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1815 transitions. [2019-12-07 11:02:48,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-12-07 11:02:48,050 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:02:48,050 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:02:48,251 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 11:02:48,251 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:02:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:02:48,252 INFO L82 PathProgramCache]: Analyzing trace with hash 182595248, now seen corresponding path program 1 times [2019-12-07 11:02:48,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:02:48,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648244165] [2019-12-07 11:02:48,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 11:02:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:02:48,686 INFO L264 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:02:48,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:02:48,696 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,697 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:02:48,704 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:48,705 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:48,705 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:48,705 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:48,706 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:02:48,926 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:02:48,926 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:02:48,926 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:02:48,927 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:02:48,963 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:02:48,963 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:02:48,963 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:02:49,011 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:02:49,011 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:02:49,012 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:02:49,013 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:02:49,013 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:02:49,014 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:02:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:02:49,041 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:02:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:02:49,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648244165] [2019-12-07 11:02:49,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:02:49,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:02:49,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436253366] [2019-12-07 11:02:49,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:02:49,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:02:49,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:02:49,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:02:49,084 INFO L87 Difference]: Start difference. First operand 1238 states and 1815 transitions. Second operand 6 states. [2019-12-07 11:03:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:03:23,478 INFO L93 Difference]: Finished difference Result 2975 states and 4334 transitions. [2019-12-07 11:03:23,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:03:23,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2019-12-07 11:03:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:03:23,487 INFO L225 Difference]: With dead ends: 2975 [2019-12-07 11:03:23,487 INFO L226 Difference]: Without dead ends: 1748 [2019-12-07 11:03:23,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:03:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2019-12-07 11:03:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1238. [2019-12-07 11:03:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2019-12-07 11:03:23,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1793 transitions. [2019-12-07 11:03:23,529 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1793 transitions. Word has length 118 [2019-12-07 11:03:23,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:03:23,530 INFO L462 AbstractCegarLoop]: Abstraction has 1238 states and 1793 transitions. [2019-12-07 11:03:23,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:03:23,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1793 transitions. [2019-12-07 11:03:23,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-12-07 11:03:23,531 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:03:23,531 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2019-12-07 11:03:23,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 11:03:23,732 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:03:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:03:23,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1828816845, now seen corresponding path program 1 times [2019-12-07 11:03:23,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:03:23,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859203606] [2019-12-07 11:03:23,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 11:03:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:03:24,105 INFO L264 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:03:24,107 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:03:24,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:24,120 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:24,121 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:24,121 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:24,121 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:24,122 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:24,339 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:03:24,340 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:03:24,340 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:03:24,340 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:03:24,382 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:03:24,383 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:03:24,383 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:03:24,436 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:03:24,436 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:03:24,437 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:03:24,438 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:03:24,439 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:03:24,439 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:03:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:03:24,470 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:03:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:03:24,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859203606] [2019-12-07 11:03:24,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:03:24,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:03:24,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714966719] [2019-12-07 11:03:24,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:03:24,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:03:24,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:03:24,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:03:24,515 INFO L87 Difference]: Start difference. First operand 1238 states and 1793 transitions. Second operand 6 states. [2019-12-07 11:03:57,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:03:57,400 INFO L93 Difference]: Finished difference Result 3107 states and 4482 transitions. [2019-12-07 11:03:57,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:03:57,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2019-12-07 11:03:57,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:03:57,408 INFO L225 Difference]: With dead ends: 3107 [2019-12-07 11:03:57,408 INFO L226 Difference]: Without dead ends: 1880 [2019-12-07 11:03:57,409 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:03:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2019-12-07 11:03:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1355. [2019-12-07 11:03:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2019-12-07 11:03:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1950 transitions. [2019-12-07 11:03:57,447 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1950 transitions. Word has length 118 [2019-12-07 11:03:57,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:03:57,447 INFO L462 AbstractCegarLoop]: Abstraction has 1355 states and 1950 transitions. [2019-12-07 11:03:57,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:03:57,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1950 transitions. [2019-12-07 11:03:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-12-07 11:03:57,448 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:03:57,448 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 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] [2019-12-07 11:03:57,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 11:03:57,649 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:03:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:03:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1012937024, now seen corresponding path program 1 times [2019-12-07 11:03:57,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:03:57,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438534759] [2019-12-07 11:03:57,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-12-07 11:03:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:03:58,041 INFO L264 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:03:58,043 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:03:58,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,053 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,053 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,054 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,054 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,055 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,055 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:03:58,056 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:58,056 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:58,056 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:58,056 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:58,057 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:03:58,279 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:03:58,280 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:03:58,280 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:03:58,280 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:03:58,316 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:03:58,316 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:03:58,317 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:03:58,368 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:03:58,369 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:03:58,369 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:03:58,370 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:03:58,371 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:03:58,371 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:03:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:03:58,407 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:03:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:03:58,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438534759] [2019-12-07 11:03:58,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:03:58,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:03:58,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520645928] [2019-12-07 11:03:58,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:03:58,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:03:58,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:03:58,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:03:58,457 INFO L87 Difference]: Start difference. First operand 1355 states and 1950 transitions. Second operand 6 states. [2019-12-07 11:04:28,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:28,106 INFO L93 Difference]: Finished difference Result 3184 states and 4567 transitions. [2019-12-07 11:04:28,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:04:28,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-12-07 11:04:28,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:28,114 INFO L225 Difference]: With dead ends: 3184 [2019-12-07 11:04:28,114 INFO L226 Difference]: Without dead ends: 1842 [2019-12-07 11:04:28,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:04:28,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2019-12-07 11:04:28,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1373. [2019-12-07 11:04:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2019-12-07 11:04:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1975 transitions. [2019-12-07 11:04:28,153 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1975 transitions. Word has length 119 [2019-12-07 11:04:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:28,153 INFO L462 AbstractCegarLoop]: Abstraction has 1373 states and 1975 transitions. [2019-12-07 11:04:28,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:04:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1975 transitions. [2019-12-07 11:04:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-12-07 11:04:28,154 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:28,155 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 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] [2019-12-07 11:04:28,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 11:04:28,355 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:04:28,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:28,356 INFO L82 PathProgramCache]: Analyzing trace with hash 405159276, now seen corresponding path program 1 times [2019-12-07 11:04:28,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:04:28,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631724757] [2019-12-07 11:04:28,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-12-07 11:04:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:28,720 INFO L264 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:04:28,722 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:28,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:28,733 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:04:28,733 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:04:28,733 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:04:28,734 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:04:28,734 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:04:28,967 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 42 [2019-12-07 11:04:28,968 INFO L343 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2019-12-07 11:04:28,968 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2019-12-07 11:04:28,968 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:04:29,005 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:04:29,005 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:04:29,005 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:74 [2019-12-07 11:04:29,056 INFO L343 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2019-12-07 11:04:29,056 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 39 [2019-12-07 11:04:29,056 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:04:29,058 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:04:29,058 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:04:29,058 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:9 [2019-12-07 11:04:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:04:29,091 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:04:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 11:04:29,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631724757] [2019-12-07 11:04:29,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:29,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:04:29,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268947871] [2019-12-07 11:04:29,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:04:29,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:04:29,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:04:29,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:04:29,140 INFO L87 Difference]: Start difference. First operand 1373 states and 1975 transitions. Second operand 6 states. [2019-12-07 11:05:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:05:11,721 INFO L93 Difference]: Finished difference Result 3191 states and 4569 transitions. [2019-12-07 11:05:11,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:05:11,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-12-07 11:05:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:05:11,729 INFO L225 Difference]: With dead ends: 3191 [2019-12-07 11:05:11,729 INFO L226 Difference]: Without dead ends: 1831 [2019-12-07 11:05:11,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:05:11,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2019-12-07 11:05:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1378. [2019-12-07 11:05:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-12-07 11:05:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1967 transitions. [2019-12-07 11:05:11,769 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1967 transitions. Word has length 119 [2019-12-07 11:05:11,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:05:11,769 INFO L462 AbstractCegarLoop]: Abstraction has 1378 states and 1967 transitions. [2019-12-07 11:05:11,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:05:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1967 transitions. [2019-12-07 11:05:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-12-07 11:05:11,770 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:05:11,771 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2019-12-07 11:05:11,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 11:05:11,971 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:05:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:05:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1820752595, now seen corresponding path program 1 times [2019-12-07 11:05:11,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:05:11,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484161986] [2019-12-07 11:05:11,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2019-12-07 11:05:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:05:12,535 INFO L264 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 11:05:12,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:05:12,544 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,544 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,545 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,547 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,547 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,551 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,551 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,552 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,552 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,552 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,557 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,563 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,583 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,584 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,590 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,599 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:12,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:12,684 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:05:12,684 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 69 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 222 treesize of output 225 [2019-12-07 11:05:12,685 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:05:12,870 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-12-07 11:05:12,871 INFO L614 ElimStorePlain]: treesize reduction 66, result has 71.1 percent of original size [2019-12-07 11:05:12,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,876 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 11:05:12,876 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:226, output treesize:162 [2019-12-07 11:05:12,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:12,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,218 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 87 [2019-12-07 11:05:14,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:05:14,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,831 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:14,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,335 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,490 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,541 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,690 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,796 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,848 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,897 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:15,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,053 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,102 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,260 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,822 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:16,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:17,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,053 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,758 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:18,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,080 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,536 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,691 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,743 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,796 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,906 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:19,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:20,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:20,061 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:20,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:20,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:20,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:37,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,550 INFO L237 Elim1Store]: Index analysis took 25182 ms [2019-12-07 11:05:39,552 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 217 [2019-12-07 11:05:39,554 INFO L534 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 11:05:39,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,563 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,583 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,673 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,677 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,677 INFO L237 Elim1Store]: Index analysis took 116 ms [2019-12-07 11:05:39,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,680 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,681 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,681 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,682 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,683 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,684 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,686 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,687 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,688 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,689 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,690 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,692 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,693 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,694 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,695 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,696 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,697 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,702 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:39,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,705 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,706 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,707 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,707 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:39,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:05:39,712 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:05:39,730 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:05:39,730 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 137 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 70 case distinctions, treesize of input 307 treesize of output 299 [2019-12-07 11:05:39,732 INFO L534 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 11:05:40,138 WARN L192 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2019-12-07 11:05:40,138 INFO L614 ElimStorePlain]: treesize reduction 58, result has 87.5 percent of original size [2019-12-07 11:05:40,140 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2019-12-07 11:05:40,140 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:583, output treesize:405 [2019-12-07 11:05:52,212 WARN L192 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 155 DAG size of output: 113 [2019-12-07 11:05:52,267 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:05:52,268 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 120 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 210 treesize of output 146 [2019-12-07 11:05:52,269 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:05:52,292 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:05:52,294 INFO L534 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:05:52,294 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:210, output treesize:9 [2019-12-07 11:05:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-12-07 11:05:52,353 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:05:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-12-07 11:05:52,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484161986] [2019-12-07 11:05:52,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:05:52,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2019-12-07 11:05:52,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574449688] [2019-12-07 11:05:52,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:05:52,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:05:52,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:05:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2019-12-07 11:05:52,443 INFO L87 Difference]: Start difference. First operand 1378 states and 1967 transitions. Second operand 7 states. [2019-12-07 11:06:22,124 WARN L192 SmtUtils]: Spent 5.37 s on a formula simplification that was a NOOP. DAG size: 121 [2019-12-07 11:07:15,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:07:15,346 INFO L93 Difference]: Finished difference Result 3145 states and 4459 transitions. [2019-12-07 11:07:15,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:07:15,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2019-12-07 11:07:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:07:15,354 INFO L225 Difference]: With dead ends: 3145 [2019-12-07 11:07:15,354 INFO L226 Difference]: Without dead ends: 2002 [2019-12-07 11:07:15,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2019-12-07 11:07:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2019-12-07 11:07:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1378. [2019-12-07 11:07:15,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-12-07 11:07:15,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1960 transitions. [2019-12-07 11:07:15,397 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1960 transitions. Word has length 122 [2019-12-07 11:07:15,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:07:15,398 INFO L462 AbstractCegarLoop]: Abstraction has 1378 states and 1960 transitions. [2019-12-07 11:07:15,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:07:15,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1960 transitions. [2019-12-07 11:07:15,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-12-07 11:07:15,399 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:07:15,399 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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] [2019-12-07 11:07:15,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-12-07 11:07:15,600 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:07:15,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:07:15,600 INFO L82 PathProgramCache]: Analyzing trace with hash 787843816, now seen corresponding path program 1 times [2019-12-07 11:07:15,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:07:15,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498966103] [2019-12-07 11:07:15,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2019-12-07 11:07:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:07:16,440 INFO L264 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 11:07:16,443 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:07:16,450 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,451 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,458 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,458 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,458 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,458 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,459 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,462 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,462 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,464 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,465 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,465 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,467 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,468 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,468 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,470 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,474 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,478 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,479 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,479 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,481 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,484 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,484 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,488 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,488 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,489 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,490 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,490 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,491 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,492 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,492 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,493 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,493 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,494 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,494 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,501 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:16,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,503 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,506 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:16,565 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:07:16,566 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 69 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 222 treesize of output 225 [2019-12-07 11:07:16,566 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:07:16,709 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-12-07 11:07:16,710 INFO L614 ElimStorePlain]: treesize reduction 66, result has 71.1 percent of original size [2019-12-07 11:07:16,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,713 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 11:07:16,713 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:226, output treesize:162 [2019-12-07 11:07:16,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,714 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:16,714 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,237 WARN L192 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 87 [2019-12-07 11:07:18,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:07:18,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,677 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,837 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,891 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:18,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,053 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,257 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,832 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:19,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,275 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,382 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,758 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:20,964 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,369 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,471 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,832 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:21,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,196 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,305 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,828 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:22,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,450 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:23,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,275 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:24,329 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:42,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,889 INFO L237 Elim1Store]: Index analysis took 25525 ms [2019-12-07 11:07:43,891 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 217 [2019-12-07 11:07:43,892 INFO L534 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 11:07:43,900 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,903 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,904 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,906 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,911 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,913 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,916 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,923 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,936 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,936 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,939 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,940 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,942 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,945 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,946 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,953 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,955 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,957 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,959 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,964 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,967 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,974 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:43,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,012 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,013 INFO L237 Elim1Store]: Index analysis took 113 ms [2019-12-07 11:07:44,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,018 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,020 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,021 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,022 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,023 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,024 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,025 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,034 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,038 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:44,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,043 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:44,044 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:07:44,047 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:07:44,065 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:07:44,065 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 140 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 70 case distinctions, treesize of input 307 treesize of output 299 [2019-12-07 11:07:44,067 INFO L534 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 11:07:44,479 WARN L192 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 131 [2019-12-07 11:07:44,480 INFO L614 ElimStorePlain]: treesize reduction 46, result has 89.8 percent of original size [2019-12-07 11:07:44,481 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2019-12-07 11:07:44,481 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:583, output treesize:403 [2019-12-07 11:07:57,516 WARN L192 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 153 DAG size of output: 114 [2019-12-07 11:07:57,569 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:07:57,569 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 120 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 212 treesize of output 148 [2019-12-07 11:07:57,570 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:07:57,589 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:07:57,590 INFO L534 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:07:57,590 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:212, output treesize:9 [2019-12-07 11:07:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-12-07 11:07:57,653 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:07:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-12-07 11:07:57,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498966103] [2019-12-07 11:07:57,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:07:57,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2019-12-07 11:07:57,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843833780] [2019-12-07 11:07:57,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:07:57,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:07:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:07:57,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2019-12-07 11:07:57,746 INFO L87 Difference]: Start difference. First operand 1378 states and 1960 transitions. Second operand 7 states. [2019-12-07 11:08:23,372 WARN L192 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 119 [2019-12-07 11:09:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:09:08,257 INFO L93 Difference]: Finished difference Result 3126 states and 4425 transitions. [2019-12-07 11:09:08,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:09:08,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2019-12-07 11:09:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:09:08,266 INFO L225 Difference]: With dead ends: 3126 [2019-12-07 11:09:08,266 INFO L226 Difference]: Without dead ends: 1983 [2019-12-07 11:09:08,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2019-12-07 11:09:08,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2019-12-07 11:09:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1363. [2019-12-07 11:09:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2019-12-07 11:09:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1938 transitions. [2019-12-07 11:09:08,314 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1938 transitions. Word has length 123 [2019-12-07 11:09:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:09:08,315 INFO L462 AbstractCegarLoop]: Abstraction has 1363 states and 1938 transitions. [2019-12-07 11:09:08,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:09:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1938 transitions. [2019-12-07 11:09:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-12-07 11:09:08,316 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:09:08,316 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:09:08,516 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2019-12-07 11:09:08,517 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:09:08,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:09:08,517 INFO L82 PathProgramCache]: Analyzing trace with hash -272550210, now seen corresponding path program 1 times [2019-12-07 11:09:08,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:09:08,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634474233] [2019-12-07 11:09:08,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2019-12-07 11:09:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:09:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:09:11,799 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:09:11,800 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:09:12,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2019-12-07 11:09:12,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:09:12 BoogieIcfgContainer [2019-12-07 11:09:12,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:09:12,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:09:12,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:09:12,116 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:09:12,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:57:47" (3/4) ... [2019-12-07 11:09:12,117 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:09:12,188 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6cf7de3-b9d9-42ee-bfbb-762a7e0db3a3/bin/utaipan/witness.graphml [2019-12-07 11:09:12,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:09:12,189 INFO L168 Benchmark]: Toolchain (without parser) took 695070.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 786.2 MB in the end (delta: 160.9 MB). Peak memory consumption was 279.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,189 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:09:12,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,189 INFO L168 Benchmark]: Boogie Preprocessor took 53.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,189 INFO L168 Benchmark]: RCFGBuilder took 10062.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,190 INFO L168 Benchmark]: TraceAbstraction took 684335.45 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 524.3 kB). Free memory was 933.5 MB in the beginning and 805.7 MB in the end (delta: 127.7 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,190 INFO L168 Benchmark]: Witness Printer took 72.22 ms. Allocated memory is still 1.1 GB. Free memory was 805.7 MB in the beginning and 786.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:09:12,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 488.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10062.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 684335.45 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 524.3 kB). Free memory was 933.5 MB in the beginning and 805.7 MB in the end (delta: 127.7 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. * Witness Printer took 72.22 ms. Allocated memory is still 1.1 GB. Free memory was 805.7 MB in the beginning and 786.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1645]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1039] static int init = 1; [L1040] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={1048591:0}] [L1062] SSL *s ; [L1066] s = malloc (sizeof (SSL)) [L1067] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1068] s->ctx = malloc(sizeof(SSL_CTX)) [L1069] s->state = 12292 [L1070] s->version = __VERIFIER_nondet_int() [L1077] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1078] unsigned long tmp ; [L1079] unsigned long l ; [L1080] long num1 ; [L1081] void (*cb)() ; [L1082] int ret ; [L1083] int new_state ; [L1084] int state ; [L1085] int skip ; [L1086] int *tmp___0 ; [L1087] int tmp___1 = __VERIFIER_nondet_int(); [L1088] int tmp___2 = __VERIFIER_nondet_int(); [L1089] int tmp___3 ; [L1090] int tmp___4 ; [L1091] int tmp___5 ; [L1092] int tmp___6 ; [L1093] int tmp___7 ; [L1094] int tmp___8 ; [L1095] long tmp___9 ; [L1097] int blastFlag ; [L1100] blastFlag = 0 [L1101] s->state = 12292 [L1102] s->hit = __VERIFIER_nondet_int() [L1104] tmp = __VERIFIER_nondet_int() [L1105] cb = (void (*)())((void *)0) [L1106] ret = -1 [L1107] skip = 0 [L1108] tmp___0 = (int*)malloc(sizeof(int)) [L1109] *tmp___0 = 0 [L1110] EXPR s->info_callback VAL [init=1, SSLv3_client_data={1048591:0}] [L1110] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1111] EXPR s->info_callback [L1111] cb = s->info_callback [L1119] EXPR s->in_handshake [L1119] s->in_handshake += 1 [L1120] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND TRUE s->state == 12292 [L1236] s->new_session = 1 [L1237] s->state = 4096 [L1238] EXPR s->ctx [L1238] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1238] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1243] s->server = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1244] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [init=1, SSLv3_client_data={1048591:0}] [L1249] EXPR s->version VAL [init=1, SSLv3_client_data={1048591:0}] [L1249] COND FALSE !((s->version & 65280) != 768) [L1255] s->type = 4096 [L1256] EXPR s->init_buf VAL [init=1, SSLv3_client_data={1048591:0}] [L1256] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1268] tmp___4 = __VERIFIER_nondet_int() [L1269] COND FALSE !(! tmp___4) [L1275] tmp___5 = __VERIFIER_nondet_int() [L1276] COND FALSE !(! tmp___5) [L1282] s->state = 4368 [L1283] EXPR s->ctx [L1283] EXPR (s->ctx)->stats.sess_connect [L1283] (s->ctx)->stats.sess_connect += 1 [L1284] s->init_num = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND TRUE s->state == 4368 [L1288] s->shutdown = 0 [L1289] ret = __VERIFIER_nondet_int() [L1290] COND TRUE blastFlag == 0 [L1291] blastFlag = 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1295] COND FALSE !(ret <= 0) [L1300] s->state = 4384 [L1301] s->init_num = 0 [L1302] EXPR s->bbio [L1302] EXPR s->wbio VAL [init=1, SSLv3_client_data={1048591:0}] [L1302] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1154] COND TRUE s->state == 4384 [L1310] ret = __VERIFIER_nondet_int() [L1311] COND TRUE blastFlag == 1 [L1312] blastFlag = 2 VAL [init=1, SSLv3_client_data={1048591:0}] [L1316] COND FALSE !(ret <= 0) [L1321] s->hit VAL [init=1, SSLv3_client_data={1048591:0}] [L1321] COND FALSE !(s->hit) [L1324] s->state = 4400 VAL [init=1, SSLv3_client_data={1048591:0}] [L1326] s->init_num = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1160] COND TRUE s->state == 4400 [L1330] EXPR s->s3 [L1330] EXPR (s->s3)->tmp.new_cipher [L1330] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [init=1, SSLv3_client_data={1048591:0}] [L1330] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 2 [L1335] blastFlag = 3 VAL [init=1, SSLv3_client_data={1048591:0}] [L1339] COND FALSE !(ret <= 0) VAL [init=1, SSLv3_client_data={1048591:0}] [L1345] s->state = 4416 [L1346] s->init_num = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1166] COND TRUE s->state == 4416 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 3 [L1352] blastFlag = 4 VAL [init=1, SSLv3_client_data={1048591:0}] [L1356] COND FALSE !(ret <= 0) [L1361] s->state = 4432 [L1362] s->init_num = 0 [L1363] tmp___6 = __VERIFIER_nondet_int() [L1364] COND FALSE !(! tmp___6) VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1172] COND TRUE s->state == 4432 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND FALSE !(blastFlag == 5) VAL [init=1, SSLv3_client_data={1048591:0}] [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4448 [L1385] s->init_num = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={1048591:0}] [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 VAL [init=1, SSLv3_client_data={1048591:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={1048591:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1172] COND FALSE !(s->state == 4432) [L1175] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1175] COND FALSE !(s->state == 4433) [L1178] EXPR s->state VAL [init=1, SSLv3_client_data={1048591:0}] [L1178] COND TRUE s->state == 4448 [L1389] ret = __VERIFIER_nondet_int() [L1390] COND TRUE blastFlag == 4 VAL [init=1, SSLv3_client_data={1048591:0}] [L1645] __VERIFIER_error() VAL [init=1, SSLv3_client_data={1048591:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Result: UNSAFE, OverallTime: 684.1s, OverallIterations: 18, TraceHistogramMax: 7, AutomataDifference: 583.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3640 SDtfs, 3508 SDslu, 7709 SDs, 0 SdLazy, 6011 SolverSat, 608 SolverUnsat, 83 SolverUnknown, 0 SolverNotchecked, 564.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3509 GetRequests, 3398 SyntacticMatches, 20 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 40.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1378occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 7900 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 6.9s SatisfiabilityAnalysisTime, 86.9s InterpolantComputationTime, 1895 NumberOfCodeBlocks, 1895 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3482 ConstructedInterpolants, 21 QuantifiedInterpolants, 2788087 SizeOfPredicates, 96 NumberOfNonLiveVariables, 4575 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 PerfectInterpolantSequences, 4762/4762 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...