./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43035c6e49855e15ec870efd7c9282b8311d43cd ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43035c6e49855e15ec870efd7c9282b8311d43cd 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:51:57,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:51:57,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:51:57,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:51:57,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:51:57,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:51:57,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:51:57,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:51:57,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:51:57,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:51:57,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:51:57,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:51:57,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:51:57,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:51:57,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:51:57,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:51:57,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:51:57,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:51:57,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:51:57,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:51:57,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:51:57,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:51:57,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:51:57,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:51:57,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:51:57,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:51:57,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:51:57,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:51:57,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:51:57,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:51:57,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:51:57,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:51:57,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:51:57,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:51:57,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:51:57,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:51:57,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:51:57,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:51:57,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:51:57,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:51:57,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:51:57,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 09:51:57,264 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:51:57,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:51:57,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:51:57,265 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:51:57,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:51:57,265 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:51:57,265 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:51:57,266 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:51:57,266 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:51:57,267 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:51:57,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 09:51:57,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 09:51:57,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:51:57,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:51:57,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:51:57,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:51:57,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:51:57,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:51:57,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:51:57,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:51:57,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:51:57,270 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43035c6e49855e15ec870efd7c9282b8311d43cd [2020-12-09 09:51:57,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:51:57,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:51:57,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:51:57,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:51:57,477 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:51:57,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2020-12-09 09:51:57,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/87ee0aa87/f51e6bdd9f90465e933c2b876525690a/FLAGa03761770 [2020-12-09 09:51:57,947 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:51:57,947 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2020-12-09 09:51:57,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/87ee0aa87/f51e6bdd9f90465e933c2b876525690a/FLAGa03761770 [2020-12-09 09:51:57,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/87ee0aa87/f51e6bdd9f90465e933c2b876525690a [2020-12-09 09:51:57,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:51:57,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:51:57,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:51:57,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:51:57,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:51:57,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:51:57" (1/1) ... [2020-12-09 09:51:57,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e8b405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:51:57, skipping insertion in model container [2020-12-09 09:51:57,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:51:57" (1/1) ... [2020-12-09 09:51:57,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:51:58,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:51:58,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:51:58,295 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) [2020-12-09 09:51:58,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@587cd520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:51:58, skipping insertion in model container [2020-12-09 09:51:58,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:51:58,295 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 09:51:58,297 INFO L168 Benchmark]: Toolchain (without parser) took 325.06 ms. Allocated memory is still 98.6 MB. Free memory was 58.2 MB in the beginning and 70.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:51:58,297 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 98.6 MB. Free memory is still 76.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:51:58,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.86 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 70.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:51:58,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 98.6 MB. Free memory is still 76.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.86 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 70.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:51:59,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:51:59,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:51:59,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:51:59,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:51:59,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:51:59,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:51:59,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:51:59,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:51:59,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:51:59,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:51:59,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:51:59,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:51:59,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:51:59,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:51:59,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:51:59,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:51:59,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:51:59,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:51:59,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:51:59,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:51:59,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:51:59,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:51:59,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:51:59,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:51:59,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:51:59,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:51:59,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:51:59,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:51:59,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:51:59,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:51:59,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:51:59,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:51:59,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:51:59,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:51:59,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:51:59,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:51:59,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:51:59,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:51:59,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:51:59,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:51:59,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 09:51:59,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:51:59,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:51:59,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:51:59,699 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:51:59,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:51:59,699 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:51:59,699 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:51:59,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:51:59,699 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:51:59,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 09:51:59,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 09:51:59,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:51:59,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 09:51:59,701 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:51:59,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 09:51:59,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:51:59,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:51:59,703 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43035c6e49855e15ec870efd7c9282b8311d43cd [2020-12-09 09:51:59,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:51:59,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:51:59,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:51:59,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:51:59,975 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:51:59,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2020-12-09 09:52:00,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/ee36fbabd/b51d562bc8b548b28f5b8b4caa55ebbe/FLAG212ba010d [2020-12-09 09:52:00,530 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:52:00,531 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2020-12-09 09:52:00,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/ee36fbabd/b51d562bc8b548b28f5b8b4caa55ebbe/FLAG212ba010d [2020-12-09 09:52:01,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/data/ee36fbabd/b51d562bc8b548b28f5b8b4caa55ebbe [2020-12-09 09:52:01,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:52:01,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:52:01,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:52:01,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:52:01,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:52:01,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4c2a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01, skipping insertion in model container [2020-12-09 09:52:01,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:52:01,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:52:01,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:52:01,367 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 09:52:01,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:52:01,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:52:01,413 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:52:01,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:52:01,516 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:52:01,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01 WrapperNode [2020-12-09 09:52:01,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:52:01,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:52:01,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:52:01,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:52:01,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:52:01,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:52:01,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:52:01,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:52:01,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... [2020-12-09 09:52:01,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:52:01,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:52:01,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:52:01,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:52:01,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 09:52:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 09:52:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:52:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 09:52:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 09:52:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 09:52:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:52:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:52:02,014 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:52:02,014 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 09:52:02,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:52:02 BoogieIcfgContainer [2020-12-09 09:52:02,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:52:02,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:52:02,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:52:02,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:52:02,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:52:01" (1/3) ... [2020-12-09 09:52:02,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be6a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:52:02, skipping insertion in model container [2020-12-09 09:52:02,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:52:01" (2/3) ... [2020-12-09 09:52:02,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be6a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:52:02, skipping insertion in model container [2020-12-09 09:52:02,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:52:02" (3/3) ... [2020-12-09 09:52:02,021 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-2.i [2020-12-09 09:52:02,033 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:52:02,036 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2020-12-09 09:52:02,043 INFO L253 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2020-12-09 09:52:02,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:52:02,057 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 09:52:02,057 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:52:02,057 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:52:02,057 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:52:02,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:52:02,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:52:02,058 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:52:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-12-09 09:52:02,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 09:52:02,073 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:02,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 09:52:02,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash 889508826, now seen corresponding path program 1 times [2020-12-09 09:52:02,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:02,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513344505] [2020-12-09 09:52:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:02,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 09:52:02,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:02,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:02,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513344505] [2020-12-09 09:52:02,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:02,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:52:02,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555112316] [2020-12-09 09:52:02,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:52:02,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:02,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:52:02,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:52:02,209 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 4 states. [2020-12-09 09:52:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:02,433 INFO L93 Difference]: Finished difference Result 347 states and 361 transitions. [2020-12-09 09:52:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:52:02,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 09:52:02,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:02,443 INFO L225 Difference]: With dead ends: 347 [2020-12-09 09:52:02,444 INFO L226 Difference]: Without dead ends: 339 [2020-12-09 09:52:02,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-12-09 09:52:02,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 92. [2020-12-09 09:52:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-09 09:52:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2020-12-09 09:52:02,475 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 6 [2020-12-09 09:52:02,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:02,476 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2020-12-09 09:52:02,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:52:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2020-12-09 09:52:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 09:52:02,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:02,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 09:52:02,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 09:52:02,679 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:02,681 INFO L82 PathProgramCache]: Analyzing trace with hash 889568408, now seen corresponding path program 1 times [2020-12-09 09:52:02,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:02,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161797048] [2020-12-09 09:52:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:02,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 09:52:02,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:02,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:02,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161797048] [2020-12-09 09:52:02,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:02,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:52:02,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779909940] [2020-12-09 09:52:02,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:52:02,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:02,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:52:02,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:52:02,871 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 3 states. [2020-12-09 09:52:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:03,016 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2020-12-09 09:52:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:52:03,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 09:52:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:03,018 INFO L225 Difference]: With dead ends: 164 [2020-12-09 09:52:03,018 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 09:52:03,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:52:03,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 09:52:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 90. [2020-12-09 09:52:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-09 09:52:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2020-12-09 09:52:03,027 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 6 [2020-12-09 09:52:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:03,027 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2020-12-09 09:52:03,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:52:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2020-12-09 09:52:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:52:03,028 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:03,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:03,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 09:52:03,231 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:03,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:03,232 INFO L82 PathProgramCache]: Analyzing trace with hash 119444428, now seen corresponding path program 1 times [2020-12-09 09:52:03,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:03,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253600333] [2020-12-09 09:52:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:03,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 09:52:03,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:03,439 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:03,440 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:03,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:03,442 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:03,443 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:03,480 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:03,480 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:52:03,485 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:03,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:03,498 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:03,498 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-12-09 09:52:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:03,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:03,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253600333] [2020-12-09 09:52:03,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:03,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:52:03,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805392298] [2020-12-09 09:52:03,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:52:03,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:03,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:52:03,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:03,529 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 5 states. [2020-12-09 09:52:04,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:04,018 INFO L93 Difference]: Finished difference Result 227 states and 239 transitions. [2020-12-09 09:52:04,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:52:04,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 09:52:04,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:04,022 INFO L225 Difference]: With dead ends: 227 [2020-12-09 09:52:04,022 INFO L226 Difference]: Without dead ends: 227 [2020-12-09 09:52:04,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:52:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-12-09 09:52:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 96. [2020-12-09 09:52:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-09 09:52:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2020-12-09 09:52:04,032 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 8 [2020-12-09 09:52:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:04,032 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2020-12-09 09:52:04,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:52:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2020-12-09 09:52:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:52:04,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:04,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:04,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 09:52:04,235 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:04,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:04,237 INFO L82 PathProgramCache]: Analyzing trace with hash 119444429, now seen corresponding path program 1 times [2020-12-09 09:52:04,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:04,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147664858] [2020-12-09 09:52:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:04,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 09:52:04,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:04,418 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:04,419 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:04,426 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:04,427 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:04,433 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,434 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:16 [2020-12-09 09:52:04,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:52:04,477 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 09:52:04,479 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,489 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:04,498 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:04,499 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:52:04,500 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,511 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:04,513 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:04,513 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:9 [2020-12-09 09:52:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:04,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:04,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147664858] [2020-12-09 09:52:04,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:04,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:52:04,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136450812] [2020-12-09 09:52:04,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:04,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:04,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:04,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:04,528 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 6 states. [2020-12-09 09:52:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:05,008 INFO L93 Difference]: Finished difference Result 291 states and 307 transitions. [2020-12-09 09:52:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:52:05,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-09 09:52:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:05,009 INFO L225 Difference]: With dead ends: 291 [2020-12-09 09:52:05,009 INFO L226 Difference]: Without dead ends: 291 [2020-12-09 09:52:05,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:05,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-09 09:52:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 134. [2020-12-09 09:52:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-09 09:52:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 176 transitions. [2020-12-09 09:52:05,017 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 176 transitions. Word has length 8 [2020-12-09 09:52:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:05,017 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 176 transitions. [2020-12-09 09:52:05,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 176 transitions. [2020-12-09 09:52:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:52:05,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:05,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:05,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 09:52:05,220 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:05,222 INFO L82 PathProgramCache]: Analyzing trace with hash 176702730, now seen corresponding path program 1 times [2020-12-09 09:52:05,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:05,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120588554] [2020-12-09 09:52:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:05,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 09:52:05,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:05,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:05,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120588554] [2020-12-09 09:52:05,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:05,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:52:05,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612582335] [2020-12-09 09:52:05,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:52:05,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:05,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:52:05,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:52:05,310 INFO L87 Difference]: Start difference. First operand 134 states and 176 transitions. Second operand 4 states. [2020-12-09 09:52:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:05,393 INFO L93 Difference]: Finished difference Result 160 states and 167 transitions. [2020-12-09 09:52:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:52:05,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-09 09:52:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:05,394 INFO L225 Difference]: With dead ends: 160 [2020-12-09 09:52:05,394 INFO L226 Difference]: Without dead ends: 158 [2020-12-09 09:52:05,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-09 09:52:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 83. [2020-12-09 09:52:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-09 09:52:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2020-12-09 09:52:05,400 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 8 [2020-12-09 09:52:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:05,400 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2020-12-09 09:52:05,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:52:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2020-12-09 09:52:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 09:52:05,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:05,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:05,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 09:52:05,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash -270945356, now seen corresponding path program 1 times [2020-12-09 09:52:05,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:05,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851494402] [2020-12-09 09:52:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:05,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 09:52:05,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:05,702 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:05,703 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:05,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:05,714 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:05,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-12-09 09:52:05,731 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-12-09 09:52:05,732 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:05,734 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:05,734 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:05,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-12-09 09:52:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:05,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:05,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851494402] [2020-12-09 09:52:05,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:05,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:52:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516023393] [2020-12-09 09:52:05,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:05,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:05,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:05,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:05,743 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 6 states. [2020-12-09 09:52:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:05,898 INFO L93 Difference]: Finished difference Result 164 states and 170 transitions. [2020-12-09 09:52:05,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:52:05,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-09 09:52:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:05,899 INFO L225 Difference]: With dead ends: 164 [2020-12-09 09:52:05,899 INFO L226 Difference]: Without dead ends: 164 [2020-12-09 09:52:05,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-09 09:52:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 88. [2020-12-09 09:52:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-09 09:52:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2020-12-09 09:52:05,903 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 13 [2020-12-09 09:52:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:05,903 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2020-12-09 09:52:05,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2020-12-09 09:52:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 09:52:05,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:05,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:06,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 09:52:06,106 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:06,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:06,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1080291982, now seen corresponding path program 1 times [2020-12-09 09:52:06,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:06,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673637338] [2020-12-09 09:52:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:06,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 09:52:06,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:06,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:06,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673637338] [2020-12-09 09:52:06,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:06,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:52:06,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63011190] [2020-12-09 09:52:06,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:52:06,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:06,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:52:06,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:06,324 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand 5 states. [2020-12-09 09:52:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:06,447 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2020-12-09 09:52:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:52:06,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 09:52:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:06,448 INFO L225 Difference]: With dead ends: 153 [2020-12-09 09:52:06,448 INFO L226 Difference]: Without dead ends: 153 [2020-12-09 09:52:06,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:06,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-09 09:52:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 87. [2020-12-09 09:52:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-09 09:52:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-12-09 09:52:06,455 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 13 [2020-12-09 09:52:06,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:06,455 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-12-09 09:52:06,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:52:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-12-09 09:52:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 09:52:06,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:06,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:06,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 09:52:06,657 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:06,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1221495862, now seen corresponding path program 1 times [2020-12-09 09:52:06,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:06,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685228508] [2020-12-09 09:52:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:06,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 09:52:06,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:06,780 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:06,780 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-09 09:52:06,781 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:06,794 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2020-12-09 09:52:06,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:06,797 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:06,797 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-12-09 09:52:06,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:06,805 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:08,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:08,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685228508] [2020-12-09 09:52:08,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:08,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:52:08,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806028240] [2020-12-09 09:52:08,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:52:08,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:08,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:52:08,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=25, Unknown=1, NotChecked=0, Total=42 [2020-12-09 09:52:08,901 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 7 states. [2020-12-09 09:52:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:11,455 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2020-12-09 09:52:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:52:11,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-09 09:52:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:11,456 INFO L225 Difference]: With dead ends: 143 [2020-12-09 09:52:11,456 INFO L226 Difference]: Without dead ends: 139 [2020-12-09 09:52:11,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=21, Invalid=34, Unknown=1, NotChecked=0, Total=56 [2020-12-09 09:52:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-09 09:52:11,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 79. [2020-12-09 09:52:11,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-09 09:52:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2020-12-09 09:52:11,459 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 15 [2020-12-09 09:52:11,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:11,459 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2020-12-09 09:52:11,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:52:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2020-12-09 09:52:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 09:52:11,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:11,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:11,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 09:52:11,661 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:11,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1514178510, now seen corresponding path program 1 times [2020-12-09 09:52:11,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:11,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025475403] [2020-12-09 09:52:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:11,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 09:52:11,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:11,733 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:11,733 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:11,735 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,736 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:11,748 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:11,748 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,753 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:11,754 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,754 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-12-09 09:52:11,766 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-09 09:52:11,767 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,769 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:11,769 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:7 [2020-12-09 09:52:11,793 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:11,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:52:11,795 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:11,800 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:11,801 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:11,802 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-12-09 09:52:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:11,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:11,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025475403] [2020-12-09 09:52:11,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:11,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:52:11,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857482764] [2020-12-09 09:52:11,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:52:11,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:11,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:52:11,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:52:11,824 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand 7 states. [2020-12-09 09:52:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:12,265 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2020-12-09 09:52:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 09:52:12,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-09 09:52:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:12,266 INFO L225 Difference]: With dead ends: 139 [2020-12-09 09:52:12,266 INFO L226 Difference]: Without dead ends: 139 [2020-12-09 09:52:12,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-12-09 09:52:12,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-09 09:52:12,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 89. [2020-12-09 09:52:12,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-09 09:52:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2020-12-09 09:52:12,268 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 16 [2020-12-09 09:52:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:12,268 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2020-12-09 09:52:12,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:52:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2020-12-09 09:52:12,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 09:52:12,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:12,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:12,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 09:52:12,470 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1514178509, now seen corresponding path program 1 times [2020-12-09 09:52:12,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:12,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785600254] [2020-12-09 09:52:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:12,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 09:52:12,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:12,564 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:12,564 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,569 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,571 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:12,571 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,577 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,577 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:16 [2020-12-09 09:52:12,603 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:12,604 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,614 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,617 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:12,617 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,626 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,626 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,627 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:26 [2020-12-09 09:52:12,653 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:52:12,654 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2020-12-09 09:52:12,666 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,671 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,672 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:16 [2020-12-09 09:52:12,701 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,701 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:52:12,702 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,716 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 09:52:12,717 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,725 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:12,727 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:12,727 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:11 [2020-12-09 09:52:12,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:12,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:12,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785600254] [2020-12-09 09:52:12,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:12,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 09:52:12,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320581842] [2020-12-09 09:52:12,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 09:52:12,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:12,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 09:52:12,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-09 09:52:12,744 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand 8 states. [2020-12-09 09:52:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:13,380 INFO L93 Difference]: Finished difference Result 138 states and 143 transitions. [2020-12-09 09:52:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 09:52:13,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-12-09 09:52:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:13,381 INFO L225 Difference]: With dead ends: 138 [2020-12-09 09:52:13,382 INFO L226 Difference]: Without dead ends: 138 [2020-12-09 09:52:13,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-09 09:52:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-12-09 09:52:13,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 89. [2020-12-09 09:52:13,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-09 09:52:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2020-12-09 09:52:13,384 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 16 [2020-12-09 09:52:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:13,384 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2020-12-09 09:52:13,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 09:52:13,384 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2020-12-09 09:52:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 09:52:13,384 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:13,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:13,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 09:52:13,586 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:13,587 INFO L82 PathProgramCache]: Analyzing trace with hash -813113932, now seen corresponding path program 1 times [2020-12-09 09:52:13,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:13,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465563346] [2020-12-09 09:52:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:13,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 09:52:13,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:13,806 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:13,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,814 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:13,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:13,816 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:13,821 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,822 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-12-09 09:52:13,838 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:52:13,839 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:13,850 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:52:13,851 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,854 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:13,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:13,854 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2020-12-09 09:52:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:13,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:13,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465563346] [2020-12-09 09:52:13,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:13,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:52:13,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855404923] [2020-12-09 09:52:13,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:13,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:13,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:13,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:13,867 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand 6 states. [2020-12-09 09:52:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:14,047 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2020-12-09 09:52:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:52:14,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-09 09:52:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:14,048 INFO L225 Difference]: With dead ends: 144 [2020-12-09 09:52:14,049 INFO L226 Difference]: Without dead ends: 139 [2020-12-09 09:52:14,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-09 09:52:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-12-09 09:52:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-09 09:52:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2020-12-09 09:52:14,050 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 16 [2020-12-09 09:52:14,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:14,051 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2020-12-09 09:52:14,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-12-09 09:52:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 09:52:14,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:14,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:14,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-12-09 09:52:14,252 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:14,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1149536387, now seen corresponding path program 1 times [2020-12-09 09:52:14,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:14,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407940822] [2020-12-09 09:52:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:14,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 09:52:14,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:14,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:14,439 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,440 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,441 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,441 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:14,456 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,457 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:52:14,458 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,459 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,459 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,459 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-12-09 09:52:14,474 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:14,474 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,480 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,480 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-12-09 09:52:14,527 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,527 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 51 [2020-12-09 09:52:14,530 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:14,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:14,531 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,540 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,540 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:18 [2020-12-09 09:52:14,559 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-09 09:52:14,560 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:14,565 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:14,565 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:5 [2020-12-09 09:52:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:14,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:14,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407940822] [2020-12-09 09:52:14,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:14,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 09:52:14,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421054320] [2020-12-09 09:52:14,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 09:52:14,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:14,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 09:52:14,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:14,577 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand 10 states. [2020-12-09 09:52:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:15,248 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2020-12-09 09:52:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-09 09:52:15,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-12-09 09:52:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:15,249 INFO L225 Difference]: With dead ends: 161 [2020-12-09 09:52:15,249 INFO L226 Difference]: Without dead ends: 161 [2020-12-09 09:52:15,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-12-09 09:52:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-12-09 09:52:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 76. [2020-12-09 09:52:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-09 09:52:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-12-09 09:52:15,252 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 19 [2020-12-09 09:52:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:15,253 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-12-09 09:52:15,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 09:52:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-12-09 09:52:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 09:52:15,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:15,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:15,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-12-09 09:52:15,455 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:15,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:15,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1149536388, now seen corresponding path program 1 times [2020-12-09 09:52:15,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:15,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31566222] [2020-12-09 09:52:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:15,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-09 09:52:15,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:15,542 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:15,543 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,544 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,545 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:15,565 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_45|], 3=[|v_#valid_71|]} [2020-12-09 09:52:15,569 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:15,570 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,579 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,594 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,594 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:52:15,595 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,603 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,604 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,604 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:25 [2020-12-09 09:52:15,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:15,646 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,660 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,663 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:15,664 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,674 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,675 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,675 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:39 [2020-12-09 09:52:15,736 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_46|], 3=[|v_#valid_72|]} [2020-12-09 09:52:15,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:52:15,742 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2020-12-09 09:52:15,743 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,762 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,777 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,777 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2020-12-09 09:52:15,778 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,795 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,795 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:63, output treesize:34 [2020-12-09 09:52:15,842 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,842 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 64 [2020-12-09 09:52:15,844 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:52:15,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:52:15,845 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,860 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,863 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2020-12-09 09:52:15,864 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,878 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,879 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,879 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:65, output treesize:27 [2020-12-09 09:52:15,906 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:52:15,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,916 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-09 09:52:15,917 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,922 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:15,923 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:15,923 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:41, output treesize:9 [2020-12-09 09:52:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:15,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:15,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31566222] [2020-12-09 09:52:15,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:15,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 09:52:15,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019954030] [2020-12-09 09:52:15,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-09 09:52:15,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:15,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-09 09:52:15,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-12-09 09:52:15,940 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand 12 states. [2020-12-09 09:52:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:17,010 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2020-12-09 09:52:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 09:52:17,010 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-12-09 09:52:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:17,011 INFO L225 Difference]: With dead ends: 128 [2020-12-09 09:52:17,011 INFO L226 Difference]: Without dead ends: 128 [2020-12-09 09:52:17,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-12-09 09:52:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-09 09:52:17,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 75. [2020-12-09 09:52:17,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-12-09 09:52:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2020-12-09 09:52:17,013 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 19 [2020-12-09 09:52:17,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:17,013 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2020-12-09 09:52:17,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-09 09:52:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2020-12-09 09:52:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 09:52:17,014 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:17,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:17,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-12-09 09:52:17,216 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:17,217 INFO L82 PathProgramCache]: Analyzing trace with hash 897873764, now seen corresponding path program 1 times [2020-12-09 09:52:17,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:17,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104101256] [2020-12-09 09:52:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:17,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 09:52:17,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:17,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:17,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104101256] [2020-12-09 09:52:17,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:17,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:52:17,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370432729] [2020-12-09 09:52:17,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:52:17,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:17,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:52:17,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:52:17,307 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand 4 states. [2020-12-09 09:52:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:17,403 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2020-12-09 09:52:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:52:17,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-09 09:52:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:17,404 INFO L225 Difference]: With dead ends: 74 [2020-12-09 09:52:17,404 INFO L226 Difference]: Without dead ends: 74 [2020-12-09 09:52:17,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:17,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-09 09:52:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-09 09:52:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-09 09:52:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2020-12-09 09:52:17,405 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 21 [2020-12-09 09:52:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:17,405 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2020-12-09 09:52:17,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:52:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2020-12-09 09:52:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 09:52:17,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:17,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:17,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-12-09 09:52:17,607 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:17,608 INFO L82 PathProgramCache]: Analyzing trace with hash 897873765, now seen corresponding path program 1 times [2020-12-09 09:52:17,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:17,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571722852] [2020-12-09 09:52:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:17,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 09:52:17,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:17,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:17,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571722852] [2020-12-09 09:52:17,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:17,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:52:17,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435909385] [2020-12-09 09:52:17,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:17,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:17,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:17,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:17,790 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand 6 states. [2020-12-09 09:52:18,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:18,025 INFO L93 Difference]: Finished difference Result 123 states and 124 transitions. [2020-12-09 09:52:18,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 09:52:18,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-09 09:52:18,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:18,026 INFO L225 Difference]: With dead ends: 123 [2020-12-09 09:52:18,026 INFO L226 Difference]: Without dead ends: 123 [2020-12-09 09:52:18,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:18,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-12-09 09:52:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 73. [2020-12-09 09:52:18,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-09 09:52:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2020-12-09 09:52:18,028 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 21 [2020-12-09 09:52:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:18,028 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2020-12-09 09:52:18,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2020-12-09 09:52:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:52:18,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:18,029 INFO L422 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] [2020-12-09 09:52:18,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-12-09 09:52:18,230 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2064282586, now seen corresponding path program 1 times [2020-12-09 09:52:18,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:18,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185021626] [2020-12-09 09:52:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:18,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 09:52:18,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:18,320 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:18,320 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,323 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,323 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:18,337 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,337 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:52:18,338 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,340 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:4 [2020-12-09 09:52:18,357 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:18,358 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,370 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:18,370 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,378 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,379 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,379 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:8 [2020-12-09 09:52:18,486 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,486 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:52:18,488 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:18,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:18,489 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,503 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,506 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:52:18,507 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,517 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,519 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,519 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:25 [2020-12-09 09:52:18,545 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2020-12-09 09:52:18,546 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,554 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,555 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:18,555 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:28 [2020-12-09 09:52:18,593 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,594 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27 [2020-12-09 09:52:18,595 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:52:18,596 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,597 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:18,598 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:18,598 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:32, output treesize:4 [2020-12-09 09:52:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:18,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:18,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185021626] [2020-12-09 09:52:18,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:18,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 09:52:18,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880120115] [2020-12-09 09:52:18,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:52:18,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:18,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:52:18,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-12-09 09:52:18,615 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand 13 states. [2020-12-09 09:52:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:21,503 INFO L93 Difference]: Finished difference Result 151 states and 152 transitions. [2020-12-09 09:52:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 09:52:21,503 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2020-12-09 09:52:21,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:21,504 INFO L225 Difference]: With dead ends: 151 [2020-12-09 09:52:21,504 INFO L226 Difference]: Without dead ends: 151 [2020-12-09 09:52:21,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-12-09 09:52:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-09 09:52:21,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 79. [2020-12-09 09:52:21,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-09 09:52:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2020-12-09 09:52:21,507 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 22 [2020-12-09 09:52:21,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:21,508 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2020-12-09 09:52:21,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:52:21,508 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2020-12-09 09:52:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:52:21,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:21,509 INFO L422 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] [2020-12-09 09:52:21,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-12-09 09:52:21,710 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:21,711 INFO L82 PathProgramCache]: Analyzing trace with hash 2064282941, now seen corresponding path program 1 times [2020-12-09 09:52:21,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:21,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789368176] [2020-12-09 09:52:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:21,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 09:52:21,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:21,837 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-09 09:52:21,838 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:21,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:21,840 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:21,840 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:7 [2020-12-09 09:52:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:21,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:21,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789368176] [2020-12-09 09:52:21,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:21,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:52:21,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964972047] [2020-12-09 09:52:21,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:21,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:21,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:21,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:21,848 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 6 states. [2020-12-09 09:52:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:22,081 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2020-12-09 09:52:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:52:22,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-09 09:52:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:22,082 INFO L225 Difference]: With dead ends: 84 [2020-12-09 09:52:22,082 INFO L226 Difference]: Without dead ends: 84 [2020-12-09 09:52:22,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:52:22,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-09 09:52:22,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2020-12-09 09:52:22,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-09 09:52:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2020-12-09 09:52:22,084 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 22 [2020-12-09 09:52:22,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:22,084 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2020-12-09 09:52:22,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-12-09 09:52:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:52:22,084 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:22,084 INFO L422 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] [2020-12-09 09:52:22,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-12-09 09:52:22,286 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:22,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:22,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2064282942, now seen corresponding path program 1 times [2020-12-09 09:52:22,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:22,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899173018] [2020-12-09 09:52:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/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 [2020-12-09 09:52:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:22,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 09:52:22,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:22,532 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2020-12-09 09:52:22,533 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:22,549 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:22,553 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-09 09:52:22,554 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:22,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:22,568 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:22,568 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:13 [2020-12-09 09:52:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:22,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:22,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899173018] [2020-12-09 09:52:22,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:22,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:52:22,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379300622] [2020-12-09 09:52:22,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:52:22,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:22,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:52:22,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:52:22,611 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 6 states. [2020-12-09 09:52:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:23,294 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-12-09 09:52:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:52:23,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-09 09:52:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:23,295 INFO L225 Difference]: With dead ends: 94 [2020-12-09 09:52:23,295 INFO L226 Difference]: Without dead ends: 94 [2020-12-09 09:52:23,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:52:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-09 09:52:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2020-12-09 09:52:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-09 09:52:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2020-12-09 09:52:23,297 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 22 [2020-12-09 09:52:23,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:23,297 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2020-12-09 09:52:23,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:52:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-12-09 09:52:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:52:23,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:23,298 INFO L422 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] [2020-12-09 09:52:23,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-12-09 09:52:23,499 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:23,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1550626340, now seen corresponding path program 1 times [2020-12-09 09:52:23,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:23,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037984216] [2020-12-09 09:52:23,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:23,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 09:52:23,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:23,654 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:23,655 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,656 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,656 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:23,673 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,674 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:52:23,674 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2020-12-09 09:52:23,701 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:23,701 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,709 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,712 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:23,712 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,719 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,719 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:16 [2020-12-09 09:52:23,739 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-12-09 09:52:23,740 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,745 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,745 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:12 [2020-12-09 09:52:23,768 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-09 09:52:23,769 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,777 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,779 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,779 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:7 [2020-12-09 09:52:23,795 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:52:23,795 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,797 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:23,797 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:23,797 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-09 09:52:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:23,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:23,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037984216] [2020-12-09 09:52:23,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:23,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 09:52:23,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302683239] [2020-12-09 09:52:23,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 09:52:23,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:23,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 09:52:23,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:52:23,810 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand 10 states. [2020-12-09 09:52:24,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:24,343 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2020-12-09 09:52:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-09 09:52:24,344 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-09 09:52:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:24,344 INFO L225 Difference]: With dead ends: 137 [2020-12-09 09:52:24,344 INFO L226 Difference]: Without dead ends: 137 [2020-12-09 09:52:24,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-12-09 09:52:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-09 09:52:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 78. [2020-12-09 09:52:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-09 09:52:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2020-12-09 09:52:24,346 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 22 [2020-12-09 09:52:24,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:24,346 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2020-12-09 09:52:24,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 09:52:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-12-09 09:52:24,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 09:52:24,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:24,347 INFO L422 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] [2020-12-09 09:52:24,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-12-09 09:52:24,548 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash -824776139, now seen corresponding path program 1 times [2020-12-09 09:52:24,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:24,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417376437] [2020-12-09 09:52:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:24,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 09:52:24,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:24,667 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:24,667 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,669 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,669 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:24,683 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,683 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:52:24,684 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,689 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,690 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,690 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2020-12-09 09:52:24,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:24,718 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,727 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,727 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,727 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:16 [2020-12-09 09:52:24,792 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 49 [2020-12-09 09:52:24,794 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:24,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:24,795 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,807 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,807 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:16 [2020-12-09 09:52:24,813 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-12-09 09:52:24,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:24,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:24,822 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2020-12-09 09:52:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:24,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:24,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417376437] [2020-12-09 09:52:24,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:24,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 09:52:24,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168520205] [2020-12-09 09:52:24,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 09:52:24,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:24,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 09:52:24,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:52:24,842 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 9 states. [2020-12-09 09:52:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:25,590 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2020-12-09 09:52:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-09 09:52:25,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-12-09 09:52:25,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:25,591 INFO L225 Difference]: With dead ends: 136 [2020-12-09 09:52:25,591 INFO L226 Difference]: Without dead ends: 136 [2020-12-09 09:52:25,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-12-09 09:52:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-09 09:52:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 79. [2020-12-09 09:52:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-09 09:52:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2020-12-09 09:52:25,593 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 23 [2020-12-09 09:52:25,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:25,593 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2020-12-09 09:52:25,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 09:52:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2020-12-09 09:52:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 09:52:25,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:25,593 INFO L422 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] [2020-12-09 09:52:25,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-12-09 09:52:25,795 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:25,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:25,796 INFO L82 PathProgramCache]: Analyzing trace with hash 201743614, now seen corresponding path program 1 times [2020-12-09 09:52:25,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:25,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27390602] [2020-12-09 09:52:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:25,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 09:52:25,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:25,922 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-09 09:52:25,922 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:25,924 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:25,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:25,925 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2020-12-09 09:52:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:25,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:25,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27390602] [2020-12-09 09:52:25,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:25,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:52:25,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692526669] [2020-12-09 09:52:25,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:52:25,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:25,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:52:25,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:52:25,932 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 5 states. [2020-12-09 09:52:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:26,097 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2020-12-09 09:52:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:52:26,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-09 09:52:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:26,098 INFO L225 Difference]: With dead ends: 80 [2020-12-09 09:52:26,098 INFO L226 Difference]: Without dead ends: 80 [2020-12-09 09:52:26,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:52:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-09 09:52:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-09 09:52:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-09 09:52:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2020-12-09 09:52:26,100 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 82 transitions. Word has length 24 [2020-12-09 09:52:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:26,100 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 82 transitions. [2020-12-09 09:52:26,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:52:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2020-12-09 09:52:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 09:52:26,100 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:26,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:26,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2020-12-09 09:52:26,301 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:26,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1513391073, now seen corresponding path program 1 times [2020-12-09 09:52:26,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:26,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413284933] [2020-12-09 09:52:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:26,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-09 09:52:26,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:26,430 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:26,430 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,432 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,432 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,432 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:26,446 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,446 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:52:26,447 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,448 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,449 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,449 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:4 [2020-12-09 09:52:26,464 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:26,465 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,470 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,470 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-12-09 09:52:26,504 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:26,505 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,515 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,515 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,516 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:30 [2020-12-09 09:52:26,573 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:52:26,574 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,608 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,608 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 69 [2020-12-09 09:52:26,609 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:26,610 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:26,610 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,622 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,623 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,623 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:28 [2020-12-09 09:52:26,677 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2020-12-09 09:52:26,678 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,685 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:26,685 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:29 [2020-12-09 09:52:26,723 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,723 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2020-12-09 09:52:26,724 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:52:26,725 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,728 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,728 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,728 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:5 [2020-12-09 09:52:26,761 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:26,762 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-12-09 09:52:26,763 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:26,776 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-09 09:52:26,777 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:26,777 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-12-09 09:52:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:26,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:26,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413284933] [2020-12-09 09:52:26,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:26,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 09:52:26,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362409065] [2020-12-09 09:52:26,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 09:52:26,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:26,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 09:52:26,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-12-09 09:52:26,804 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. Second operand 14 states. [2020-12-09 09:52:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:28,733 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2020-12-09 09:52:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-09 09:52:28,734 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2020-12-09 09:52:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:28,734 INFO L225 Difference]: With dead ends: 142 [2020-12-09 09:52:28,734 INFO L226 Difference]: Without dead ends: 142 [2020-12-09 09:52:28,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2020-12-09 09:52:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-09 09:52:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 86. [2020-12-09 09:52:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-09 09:52:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-12-09 09:52:28,737 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 26 [2020-12-09 09:52:28,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:28,737 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-12-09 09:52:28,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 09:52:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-12-09 09:52:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 09:52:28,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:28,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:28,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2020-12-09 09:52:28,938 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:28,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1513391074, now seen corresponding path program 1 times [2020-12-09 09:52:28,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:28,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17928991] [2020-12-09 09:52:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:29,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 38 conjunts are in the unsatisfiable core [2020-12-09 09:52:29,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:29,091 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:29,092 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,093 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,094 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,094 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:29,111 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_47|], 3=[|v_#valid_84|]} [2020-12-09 09:52:29,114 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:29,114 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,122 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,137 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,137 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:52:29,138 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,146 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:22 [2020-12-09 09:52:29,177 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:29,177 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,187 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:32 [2020-12-09 09:52:29,270 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_48|], 3=[|v_#valid_85|]} [2020-12-09 09:52:29,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:52:29,275 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2020-12-09 09:52:29,276 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,315 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-09 09:52:29,317 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,339 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,340 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:54 [2020-12-09 09:52:29,448 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,449 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 84 [2020-12-09 09:52:29,450 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:52:29,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:52:29,451 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,474 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,478 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:52:29,479 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,499 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,500 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,500 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:88 [2020-12-09 09:52:29,660 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 64 [2020-12-09 09:52:29,662 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:29,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,691 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,692 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 43 [2020-12-09 09:52:29,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:52:29,694 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:29,709 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,710 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:29,710 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:120, output treesize:22 [2020-12-09 09:52:29,849 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:29,850 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 52 [2020-12-09 09:52:29,852 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:29,891 INFO L625 ElimStorePlain]: treesize reduction 28, result has 49.1 percent of original size [2020-12-09 09:52:29,892 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:29,892 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:25 [2020-12-09 09:52:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:29,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:29,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17928991] [2020-12-09 09:52:29,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:29,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-09 09:52:29,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836804229] [2020-12-09 09:52:29,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 09:52:29,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:29,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 09:52:29,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-12-09 09:52:29,951 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 17 states. [2020-12-09 09:52:31,165 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-09 09:52:31,469 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-12-09 09:52:31,824 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-12-09 09:52:32,106 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-12-09 09:52:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:32,874 INFO L93 Difference]: Finished difference Result 111 states and 114 transitions. [2020-12-09 09:52:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 09:52:32,875 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 26 [2020-12-09 09:52:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:32,876 INFO L225 Difference]: With dead ends: 111 [2020-12-09 09:52:32,876 INFO L226 Difference]: Without dead ends: 111 [2020-12-09 09:52:32,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2020-12-09 09:52:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-09 09:52:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 86. [2020-12-09 09:52:32,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-09 09:52:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2020-12-09 09:52:32,878 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 26 [2020-12-09 09:52:32,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:32,878 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2020-12-09 09:52:32,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 09:52:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-12-09 09:52:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 09:52:32,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:32,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:33,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2020-12-09 09:52:33,080 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:33,081 INFO L82 PathProgramCache]: Analyzing trace with hash 926585059, now seen corresponding path program 1 times [2020-12-09 09:52:33,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:33,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216378134] [2020-12-09 09:52:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:33,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 09:52:33,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:33,227 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:33,227 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,230 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,230 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:33,244 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,244 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:52:33,245 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,247 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-12-09 09:52:33,265 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:33,265 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,271 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,271 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,272 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-12-09 09:52:33,397 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,397 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:52:33,399 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:33,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:33,400 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,415 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:52:33,416 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,424 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,424 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:39 [2020-12-09 09:52:33,485 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 32 [2020-12-09 09:52:33,487 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:33,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,505 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,505 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2020-12-09 09:52:33,506 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:52:33,507 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,510 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:33,511 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:33,511 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:69, output treesize:7 [2020-12-09 09:52:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:33,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:33,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216378134] [2020-12-09 09:52:33,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:33,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 09:52:33,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133711921] [2020-12-09 09:52:33,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:52:33,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:33,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:52:33,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-12-09 09:52:33,534 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand 13 states. [2020-12-09 09:52:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:34,419 INFO L93 Difference]: Finished difference Result 128 states and 127 transitions. [2020-12-09 09:52:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-09 09:52:34,419 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-12-09 09:52:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:34,420 INFO L225 Difference]: With dead ends: 128 [2020-12-09 09:52:34,420 INFO L226 Difference]: Without dead ends: 128 [2020-12-09 09:52:34,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2020-12-09 09:52:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-09 09:52:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 78. [2020-12-09 09:52:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-09 09:52:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-12-09 09:52:34,421 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 26 [2020-12-09 09:52:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:34,422 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-12-09 09:52:34,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:52:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-12-09 09:52:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 09:52:34,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:34,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:34,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2020-12-09 09:52:34,623 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:34,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1484906586, now seen corresponding path program 1 times [2020-12-09 09:52:34,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:34,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843948096] [2020-12-09 09:52:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 26 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:34,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 09:52:34,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:34,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:52:34,803 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,804 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,804 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,805 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:52:34,819 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,819 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:52:34,820 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,822 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:4 [2020-12-09 09:52:34,838 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:34,838 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,844 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,844 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-12-09 09:52:34,899 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,899 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 46 [2020-12-09 09:52:34,900 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-09 09:52:34,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:52:34,901 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,909 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,910 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,910 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:14 [2020-12-09 09:52:34,930 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-12-09 09:52:34,930 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:34,935 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,935 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2020-12-09 09:52:34,954 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 09:52:34,954 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:34,963 INFO L625 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2020-12-09 09:52:34,964 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:34,964 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:13 [2020-12-09 09:52:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:34,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:34,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843948096] [2020-12-09 09:52:34,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:34,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 09:52:34,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265191526] [2020-12-09 09:52:34,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 09:52:34,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:34,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 09:52:34,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-09 09:52:34,986 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 11 states. [2020-12-09 09:52:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:49,667 INFO L93 Difference]: Finished difference Result 127 states and 126 transitions. [2020-12-09 09:52:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 09:52:49,667 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-12-09 09:52:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:49,668 INFO L225 Difference]: With dead ends: 127 [2020-12-09 09:52:49,668 INFO L226 Difference]: Without dead ends: 127 [2020-12-09 09:52:49,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-12-09 09:52:49,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-09 09:52:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 81. [2020-12-09 09:52:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-09 09:52:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-12-09 09:52:49,670 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 27 [2020-12-09 09:52:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:49,670 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-12-09 09:52:49,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 09:52:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-12-09 09:52:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 09:52:49,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:49,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:49,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 mathsat -unsat_core_generation=3 [2020-12-09 09:52:49,872 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:49,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1212535932, now seen corresponding path program 1 times [2020-12-09 09:52:49,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:49,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581842280] [2020-12-09 09:52:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 27 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with mathsat -unsat_core_generation=3 [2020-12-09 09:52:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:52:50,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 09:52:50,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:52:50,013 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:50,013 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-09 09:52:50,014 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:50,025 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2020-12-09 09:52:50,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:50,026 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:50,026 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-12-09 09:52:50,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:50,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:52:50,136 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:52:50,136 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:50,149 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:50,150 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:50,150 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:36 [2020-12-09 09:52:50,256 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:50,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 59 [2020-12-09 09:52:50,257 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:52:50,257 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:52:50,258 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:50,287 INFO L625 ElimStorePlain]: treesize reduction 20, result has 70.1 percent of original size [2020-12-09 09:52:50,289 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:50,289 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:55, output treesize:38 [2020-12-09 09:52:50,324 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2020-12-09 09:52:50,325 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:52:50,334 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:52:50,335 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:52:50,335 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:30 [2020-12-09 09:52:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:52:52,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:52:52,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581842280] [2020-12-09 09:52:52,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:52:52,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 09:52:52,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358690750] [2020-12-09 09:52:52,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:52:52,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:52:52,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:52:52,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=119, Unknown=1, NotChecked=0, Total=156 [2020-12-09 09:52:52,485 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 13 states. [2020-12-09 09:52:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:52:59,792 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2020-12-09 09:52:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-09 09:52:59,792 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-12-09 09:52:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:52:59,793 INFO L225 Difference]: With dead ends: 82 [2020-12-09 09:52:59,793 INFO L226 Difference]: Without dead ends: 68 [2020-12-09 09:52:59,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=71, Invalid=269, Unknown=2, NotChecked=0, Total=342 [2020-12-09 09:52:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-09 09:52:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-09 09:52:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-09 09:52:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2020-12-09 09:52:59,795 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 28 [2020-12-09 09:52:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:52:59,795 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2020-12-09 09:52:59,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:52:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2020-12-09 09:52:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-09 09:52:59,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:52:59,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:52:59,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 mathsat -unsat_core_generation=3 [2020-12-09 09:52:59,997 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:52:59,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:52:59,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1161796367, now seen corresponding path program 1 times [2020-12-09 09:52:59,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:52:59,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449670850] [2020-12-09 09:52:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:00,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 09:53:00,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:00,148 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:00,148 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,150 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:00,150 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:00,179 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,179 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-09 09:53:00,180 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,192 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-09 09:53:00,193 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:00,193 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-09 09:53:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:00,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:00,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449670850] [2020-12-09 09:53:00,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:00,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:53:00,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32935606] [2020-12-09 09:53:00,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:53:00,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:00,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:53:00,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:53:00,201 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 5 states. [2020-12-09 09:53:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:00,331 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-12-09 09:53:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:53:00,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-12-09 09:53:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:00,331 INFO L225 Difference]: With dead ends: 67 [2020-12-09 09:53:00,331 INFO L226 Difference]: Without dead ends: 67 [2020-12-09 09:53:00,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:53:00,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-09 09:53:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-12-09 09:53:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-12-09 09:53:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2020-12-09 09:53:00,333 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 29 [2020-12-09 09:53:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:00,333 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2020-12-09 09:53:00,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:53:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2020-12-09 09:53:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-09 09:53:00,333 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:00,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:00,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 mathsat -unsat_core_generation=3 [2020-12-09 09:53:00,534 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:00,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:00,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1161796368, now seen corresponding path program 1 times [2020-12-09 09:53:00,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:00,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307786425] [2020-12-09 09:53:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 29 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:00,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 09:53:00,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:00,682 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:00,683 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,689 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,692 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:00,692 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,697 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,697 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:16 [2020-12-09 09:53:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:53:00,722 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 09:53:00,723 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,733 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,743 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,743 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:53:00,744 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,757 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,757 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:9 [2020-12-09 09:53:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:53:00,781 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2020-12-09 09:53:00,782 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,795 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,802 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:53:00,802 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,810 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,811 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,811 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2020-12-09 09:53:00,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:53:00,824 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 09:53:00,825 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,843 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,843 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:53:00,844 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:00,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:00,854 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:9 [2020-12-09 09:53:00,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:00,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:00,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307786425] [2020-12-09 09:53:00,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:00,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:53:00,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472975583] [2020-12-09 09:53:00,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:53:00,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:00,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:53:00,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:53:00,873 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 7 states. [2020-12-09 09:53:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:01,162 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2020-12-09 09:53:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 09:53:01,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-12-09 09:53:01,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:01,163 INFO L225 Difference]: With dead ends: 83 [2020-12-09 09:53:01,163 INFO L226 Difference]: Without dead ends: 83 [2020-12-09 09:53:01,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-09 09:53:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-09 09:53:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 66. [2020-12-09 09:53:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-09 09:53:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2020-12-09 09:53:01,164 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 29 [2020-12-09 09:53:01,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:01,164 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2020-12-09 09:53:01,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:53:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2020-12-09 09:53:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-09 09:53:01,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:01,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:01,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 mathsat -unsat_core_generation=3 [2020-12-09 09:53:01,365 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:01,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1655949062, now seen corresponding path program 1 times [2020-12-09 09:53:01,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:01,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100036433] [2020-12-09 09:53:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 30 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:01,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-09 09:53:01,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:01,489 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:01,489 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,491 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,492 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:01,504 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,504 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:53:01,505 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,507 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,507 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-12-09 09:53:01,523 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:01,523 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,533 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,536 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:01,536 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,543 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,544 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,544 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:8 [2020-12-09 09:53:01,591 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:53:01,592 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,607 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,607 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:39 [2020-12-09 09:53:01,695 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,695 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 78 [2020-12-09 09:53:01,696 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:01,697 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:01,697 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,717 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,720 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:53:01,721 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,737 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,738 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,738 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:80, output treesize:60 [2020-12-09 09:53:01,813 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2020-12-09 09:53:01,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:01,827 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:01,827 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:72, output treesize:59 [2020-12-09 09:53:02,008 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:02,009 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 146 [2020-12-09 09:53:02,011 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:02,065 INFO L625 ElimStorePlain]: treesize reduction 78, result has 45.8 percent of original size [2020-12-09 09:53:02,066 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:02,066 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:64 [2020-12-09 09:53:02,207 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:02,207 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 108 [2020-12-09 09:53:02,209 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:53:02,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:02,211 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:02,211 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:53:02,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:02,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,214 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:02,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:02,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,216 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:53:02,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:02,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:02,219 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:02,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:02,222 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 7 xjuncts. [2020-12-09 09:53:02,469 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-12-09 09:53:02,469 INFO L625 ElimStorePlain]: treesize reduction 544, result has 15.4 percent of original size [2020-12-09 09:53:02,472 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:02,472 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:74 [2020-12-09 09:53:02,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-09 09:53:02,575 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:02,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:02,584 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:02,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:15 [2020-12-09 09:53:02,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:02,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:02,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100036433] [2020-12-09 09:53:02,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:02,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-09 09:53:02,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852417390] [2020-12-09 09:53:02,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 09:53:02,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:02,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 09:53:02,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2020-12-09 09:53:02,626 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 17 states. [2020-12-09 09:53:05,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:05,962 INFO L93 Difference]: Finished difference Result 106 states and 105 transitions. [2020-12-09 09:53:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-09 09:53:05,963 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-12-09 09:53:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:05,963 INFO L225 Difference]: With dead ends: 106 [2020-12-09 09:53:05,963 INFO L226 Difference]: Without dead ends: 106 [2020-12-09 09:53:05,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=309, Invalid=1018, Unknown=5, NotChecked=0, Total=1332 [2020-12-09 09:53:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-09 09:53:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 65. [2020-12-09 09:53:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-09 09:53:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-12-09 09:53:05,965 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 30 [2020-12-09 09:53:05,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:05,965 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-12-09 09:53:05,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 09:53:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-12-09 09:53:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-09 09:53:05,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:05,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:06,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 mathsat -unsat_core_generation=3 [2020-12-09 09:53:06,167 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:06,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:06,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1655949063, now seen corresponding path program 1 times [2020-12-09 09:53:06,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:06,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605819930] [2020-12-09 09:53:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 31 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:06,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 45 conjunts are in the unsatisfiable core [2020-12-09 09:53:06,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:06,340 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:06,341 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,343 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,343 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:06,361 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_54|], 3=[|v_#valid_107|]} [2020-12-09 09:53:06,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:06,365 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,390 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,390 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:53:06,392 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,401 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,401 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2020-12-09 09:53:06,443 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:06,443 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,458 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,462 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:06,463 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,477 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,478 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,478 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:39 [2020-12-09 09:53:06,548 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_55|], 3=[|v_#valid_108|]} [2020-12-09 09:53:06,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:53:06,554 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2020-12-09 09:53:06,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,579 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,599 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,599 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2020-12-09 09:53:06,600 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,622 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,623 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:53 [2020-12-09 09:53:06,728 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,728 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 82 [2020-12-09 09:53:06,730 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:53:06,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:06,730 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,755 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,760 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2020-12-09 09:53:06,761 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,784 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:06,785 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:06,785 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:83, output treesize:55 [2020-12-09 09:53:07,045 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 44 [2020-12-09 09:53:07,046 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,097 INFO L625 ElimStorePlain]: treesize reduction 28, result has 73.3 percent of original size [2020-12-09 09:53:07,098 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:07,098 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:77 [2020-12-09 09:53:07,149 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_35|], 12=[|v_#memory_$Pointer$.base_48|]} [2020-12-09 09:53:07,177 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,177 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 80 [2020-12-09 09:53:07,178 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,242 INFO L625 ElimStorePlain]: treesize reduction 40, result has 70.8 percent of original size [2020-12-09 09:53:07,310 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,310 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 114 [2020-12-09 09:53:07,313 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:53:07,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:07,313 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:53:07,314 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:07,314 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:07,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:07,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:07,316 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:53:07,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:07,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:07,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:07,323 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 5 xjuncts. [2020-12-09 09:53:07,416 INFO L625 ElimStorePlain]: treesize reduction 454, result has 15.8 percent of original size [2020-12-09 09:53:07,417 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,417 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:125, output treesize:55 [2020-12-09 09:53:07,471 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-12-09 09:53:07,476 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:53:07,476 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,501 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,501 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 38 [2020-12-09 09:53:07,502 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,509 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:07,510 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:07,510 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:69, output treesize:11 [2020-12-09 09:53:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:07,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:07,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605819930] [2020-12-09 09:53:07,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:07,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-09 09:53:07,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927962906] [2020-12-09 09:53:07,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 09:53:07,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:07,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 09:53:07,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-09 09:53:07,548 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 18 states. [2020-12-09 09:53:08,612 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-12-09 09:53:09,165 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-12-09 09:53:09,640 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-12-09 09:53:09,772 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-12-09 09:53:10,025 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-09 09:53:10,214 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-12-09 09:53:10,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:10,893 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-12-09 09:53:10,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-09 09:53:10,893 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2020-12-09 09:53:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:10,894 INFO L225 Difference]: With dead ends: 79 [2020-12-09 09:53:10,894 INFO L226 Difference]: Without dead ends: 79 [2020-12-09 09:53:10,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=310, Invalid=1250, Unknown=0, NotChecked=0, Total=1560 [2020-12-09 09:53:10,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-09 09:53:10,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2020-12-09 09:53:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-12-09 09:53:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2020-12-09 09:53:10,895 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 30 [2020-12-09 09:53:10,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:10,896 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2020-12-09 09:53:10,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 09:53:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2020-12-09 09:53:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-09 09:53:10,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:10,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:11,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 mathsat -unsat_core_generation=3 [2020-12-09 09:53:11,097 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -205186574, now seen corresponding path program 1 times [2020-12-09 09:53:11,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:11,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118855376] [2020-12-09 09:53:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 32 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:11,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 36 conjunts are in the unsatisfiable core [2020-12-09 09:53:11,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:11,267 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:11,268 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,270 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,270 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,270 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:11,294 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,294 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:53:11,296 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,301 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,301 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:53:11,324 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:11,325 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,333 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,333 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2020-12-09 09:53:11,390 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-12-09 09:53:11,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,405 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,406 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,406 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:35 [2020-12-09 09:53:11,473 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:53:11,474 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,516 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,516 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:53:11,517 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:11,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:11,518 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,537 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,537 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:45 [2020-12-09 09:53:11,691 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_37|], 6=[|v_#memory_$Pointer$.base_51|]} [2020-12-09 09:53:11,717 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 120 [2020-12-09 09:53:11,719 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:11,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:11,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:11,721 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-09 09:53:11,805 INFO L625 ElimStorePlain]: treesize reduction 233, result has 33.6 percent of original size [2020-12-09 09:53:11,877 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:11,878 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 134 [2020-12-09 09:53:11,880 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:53:11,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:11,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:11,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:53:11,882 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:11,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:11,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:11,884 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-09 09:53:11,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:11,885 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:53:11,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:11,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:11,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:11,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:53:11,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:11,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:11,889 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 5 xjuncts. [2020-12-09 09:53:11,973 INFO L625 ElimStorePlain]: treesize reduction 471, result has 17.8 percent of original size [2020-12-09 09:53:11,974 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:11,974 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:134, output treesize:64 [2020-12-09 09:53:12,066 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2020-12-09 09:53:12,067 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:12,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:12,083 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:12,083 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:76, output treesize:59 [2020-12-09 09:53:12,143 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:12,143 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 38 [2020-12-09 09:53:12,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:12,145 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:12,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:12,151 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:12,151 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:7 [2020-12-09 09:53:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:12,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:12,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118855376] [2020-12-09 09:53:12,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:12,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-09 09:53:12,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258573701] [2020-12-09 09:53:12,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 09:53:12,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:12,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 09:53:12,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-12-09 09:53:12,184 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 18 states. [2020-12-09 09:53:15,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:15,806 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2020-12-09 09:53:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-09 09:53:15,806 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2020-12-09 09:53:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:15,807 INFO L225 Difference]: With dead ends: 77 [2020-12-09 09:53:15,807 INFO L226 Difference]: Without dead ends: 77 [2020-12-09 09:53:15,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=343, Invalid=1379, Unknown=0, NotChecked=0, Total=1722 [2020-12-09 09:53:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-12-09 09:53:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2020-12-09 09:53:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-09 09:53:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-12-09 09:53:15,809 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 31 [2020-12-09 09:53:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:15,809 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-12-09 09:53:15,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 09:53:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-12-09 09:53:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-09 09:53:15,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:15,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:16,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 mathsat -unsat_core_generation=3 [2020-12-09 09:53:16,011 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:16,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:16,012 INFO L82 PathProgramCache]: Analyzing trace with hash -205186573, now seen corresponding path program 1 times [2020-12-09 09:53:16,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:16,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168950881] [2020-12-09 09:53:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 33 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:16,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-09 09:53:16,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:16,217 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:16,218 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,220 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,220 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,220 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:16,247 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,247 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:53:16,248 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,254 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,254 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-12-09 09:53:16,281 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:16,282 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,290 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,291 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,291 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2020-12-09 09:53:16,347 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,347 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2020-12-09 09:53:16,348 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,363 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,363 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,364 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:38 [2020-12-09 09:53:16,428 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:53:16,429 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,466 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,466 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:53:16,467 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:16,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:16,468 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,483 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,483 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:60 [2020-12-09 09:53:16,706 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,706 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 177 treesize of output 176 [2020-12-09 09:53:16,707 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:16,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:16,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:16,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:16,711 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-09 09:53:16,803 INFO L625 ElimStorePlain]: treesize reduction 271, result has 32.6 percent of original size [2020-12-09 09:53:16,872 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,872 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 143 [2020-12-09 09:53:16,875 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-09 09:53:16,875 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:16,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:53:16,877 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:16,907 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:16,907 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:185, output treesize:77 [2020-12-09 09:53:17,103 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 62 [2020-12-09 09:53:17,104 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:17,125 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:17,135 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:17,136 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 36 [2020-12-09 09:53:17,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:17,138 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:17,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:17,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:17,145 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:107, output treesize:9 [2020-12-09 09:53:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:17,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:17,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168950881] [2020-12-09 09:53:17,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:17,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-09 09:53:17,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036980180] [2020-12-09 09:53:17,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 09:53:17,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:17,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 09:53:17,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-12-09 09:53:17,193 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 18 states. [2020-12-09 09:53:19,022 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 09:53:19,365 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-09 09:53:19,521 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 09:53:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:20,323 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2020-12-09 09:53:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-09 09:53:20,324 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2020-12-09 09:53:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:20,324 INFO L225 Difference]: With dead ends: 75 [2020-12-09 09:53:20,324 INFO L226 Difference]: Without dead ends: 75 [2020-12-09 09:53:20,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=350, Invalid=1456, Unknown=0, NotChecked=0, Total=1806 [2020-12-09 09:53:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-09 09:53:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 62. [2020-12-09 09:53:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-09 09:53:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-12-09 09:53:20,326 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 31 [2020-12-09 09:53:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:20,326 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-12-09 09:53:20,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 09:53:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-12-09 09:53:20,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-09 09:53:20,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:20,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:20,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 mathsat -unsat_core_generation=3 [2020-12-09 09:53:20,528 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:20,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2065816440, now seen corresponding path program 1 times [2020-12-09 09:53:20,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:20,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739192605] [2020-12-09 09:53:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 34 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:20,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-09 09:53:20,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:20,699 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:20,699 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,701 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:20,723 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,724 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:53:20,725 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,730 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,730 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,730 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:53:20,754 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:20,755 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,773 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:20,773 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,784 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,785 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,785 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:53:20,838 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,839 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2020-12-09 09:53:20,839 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:35 [2020-12-09 09:53:20,939 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,939 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 77 [2020-12-09 09:53:20,940 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:20,940 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:20,941 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,961 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:53:20,962 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:20,978 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:20,979 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:45 [2020-12-09 09:53:21,294 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,294 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 150 [2020-12-09 09:53:21,296 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:53:21,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:21,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:21,300 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:21,323 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,373 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,373 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 146 [2020-12-09 09:53:21,375 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:21,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:21,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:21,376 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:21,376 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:53:21,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:21,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:21,377 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:21,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:21,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:21,379 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:21,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:21,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:21,381 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 9 xjuncts. [2020-12-09 09:53:21,458 INFO L625 ElimStorePlain]: treesize reduction 968, result has 10.0 percent of original size [2020-12-09 09:53:21,459 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:21,459 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:139, output treesize:76 [2020-12-09 09:53:21,631 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,631 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 61 [2020-12-09 09:53:21,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:21,633 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:21,650 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,652 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:21,652 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:106, output treesize:39 [2020-12-09 09:53:21,723 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2020-12-09 09:53:21,725 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:21,733 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:21,734 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:21,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:43, output treesize:3 [2020-12-09 09:53:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:21,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:21,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739192605] [2020-12-09 09:53:21,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:21,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-12-09 09:53:21,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257344952] [2020-12-09 09:53:21,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-09 09:53:21,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:21,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-09 09:53:21,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2020-12-09 09:53:21,771 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 21 states. [2020-12-09 09:53:24,231 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-09 09:53:24,431 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 09:53:24,719 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-09 09:53:24,932 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 09:53:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:27,686 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2020-12-09 09:53:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-09 09:53:27,687 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 32 [2020-12-09 09:53:27,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:27,688 INFO L225 Difference]: With dead ends: 73 [2020-12-09 09:53:27,688 INFO L226 Difference]: Without dead ends: 73 [2020-12-09 09:53:27,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=478, Invalid=2174, Unknown=0, NotChecked=0, Total=2652 [2020-12-09 09:53:27,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-09 09:53:27,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2020-12-09 09:53:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-09 09:53:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-12-09 09:53:27,690 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 32 [2020-12-09 09:53:27,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:27,690 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-12-09 09:53:27,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-09 09:53:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-12-09 09:53:27,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 09:53:27,691 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:27,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:27,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 mathsat -unsat_core_generation=3 [2020-12-09 09:53:27,892 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash 384199922, now seen corresponding path program 1 times [2020-12-09 09:53:27,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:27,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787123833] [2020-12-09 09:53:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 35 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:28,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-09 09:53:28,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:28,184 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:28,185 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,187 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:53:28,210 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,210 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:53:28,211 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,219 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:53:28,249 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:28,250 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,266 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:28,271 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,282 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,283 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,283 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:53:28,344 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,344 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-09 09:53:28,346 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,359 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,360 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:35 [2020-12-09 09:53:28,438 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 77 [2020-12-09 09:53:28,439 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:28,439 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,440 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,456 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:53:28,461 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,475 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,476 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:28,476 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:45 [2020-12-09 09:53:28,831 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:28,831 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 158 [2020-12-09 09:53:28,833 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:28,834 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:28,835 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:28,835 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:28,836 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,836 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:28,838 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:53:28,838 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:28,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,839 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:53:28,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:28,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:28,843 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 9 xjuncts. [2020-12-09 09:53:28,948 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2020-12-09 09:53:28,949 INFO L625 ElimStorePlain]: treesize reduction 1096, result has 10.3 percent of original size [2020-12-09 09:53:29,012 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:29,013 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 146 [2020-12-09 09:53:29,015 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:53:29,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:29,016 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:29,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:29,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:29,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:29,020 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2020-12-09 09:53:29,096 INFO L625 ElimStorePlain]: treesize reduction 251, result has 30.5 percent of original size [2020-12-09 09:53:29,097 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:29,097 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:142, output treesize:76 [2020-12-09 09:53:29,287 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 61 [2020-12-09 09:53:29,288 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:29,306 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:29,307 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:29,307 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:106, output treesize:63 [2020-12-09 09:53:29,404 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:29,404 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 61 [2020-12-09 09:53:29,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:53:29,408 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:53:29,408 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:53:29,410 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 09:53:29,411 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:53:29,412 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 09:53:29,413 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:53:29,415 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:29,417 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:29,417 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:29,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:67, output treesize:3 [2020-12-09 09:53:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:29,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:29,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787123833] [2020-12-09 09:53:29,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:29,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-12-09 09:53:29,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141541878] [2020-12-09 09:53:29,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-09 09:53:29,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:29,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-09 09:53:29,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2020-12-09 09:53:29,462 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 21 states. [2020-12-09 09:53:41,149 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-09 09:53:43,760 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-09 09:53:44,091 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 09:53:44,458 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-09 09:53:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:53:56,287 INFO L93 Difference]: Finished difference Result 97 states and 96 transitions. [2020-12-09 09:53:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-09 09:53:56,288 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 33 [2020-12-09 09:53:56,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:53:56,289 INFO L225 Difference]: With dead ends: 97 [2020-12-09 09:53:56,289 INFO L226 Difference]: Without dead ends: 97 [2020-12-09 09:53:56,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=403, Invalid=1759, Unknown=0, NotChecked=0, Total=2162 [2020-12-09 09:53:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-12-09 09:53:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 70. [2020-12-09 09:53:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-09 09:53:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2020-12-09 09:53:56,291 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 33 [2020-12-09 09:53:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:53:56,291 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2020-12-09 09:53:56,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-09 09:53:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2020-12-09 09:53:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 09:53:56,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:53:56,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:53:56,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 mathsat -unsat_core_generation=3 [2020-12-09 09:53:56,493 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:53:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:53:56,494 INFO L82 PathProgramCache]: Analyzing trace with hash -8827088, now seen corresponding path program 1 times [2020-12-09 09:53:56,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:53:56,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35684253] [2020-12-09 09:53:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 36 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with mathsat -unsat_core_generation=3 [2020-12-09 09:53:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:53:56,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-09 09:53:56,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:53:56,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:53:56,664 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,681 INFO L625 ElimStorePlain]: treesize reduction 3, result has 81.3 percent of original size [2020-12-09 09:53:56,681 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,682 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2020-12-09 09:53:56,731 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:56,732 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:53:56,732 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:56,746 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,746 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-12-09 09:53:56,805 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:53:56,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,824 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:56,824 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,824 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:30 [2020-12-09 09:53:56,926 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:56,927 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2020-12-09 09:53:56,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,951 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:56,952 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:56,952 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:42 [2020-12-09 09:53:57,076 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,076 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 77 [2020-12-09 09:53:57,077 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:57,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:57,078 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:57,107 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:53:57,113 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:57,138 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,139 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:57,139 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:74, output treesize:52 [2020-12-09 09:53:57,626 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,626 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 158 [2020-12-09 09:53:57,627 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:53:57,627 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:53:57,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:57,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:57,629 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:57,664 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,746 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:57,746 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 146 [2020-12-09 09:53:57,749 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:53:57,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:57,749 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:53:57,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:57,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:53:57,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:53:57,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:53:57,752 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 5 xjuncts. [2020-12-09 09:53:57,860 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-12-09 09:53:57,860 INFO L625 ElimStorePlain]: treesize reduction 485, result has 19.0 percent of original size [2020-12-09 09:53:57,862 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:53:57,862 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:146, output treesize:83 [2020-12-09 09:53:58,172 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 61 [2020-12-09 09:53:58,174 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:58,205 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:58,206 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:58,206 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:113, output treesize:70 [2020-12-09 09:53:58,353 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:58,353 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 61 [2020-12-09 09:53:58,355 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:53:58,355 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:53:58,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:53:58,357 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:53:58,360 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:53:58,370 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:53:58,371 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:53:58,371 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:74, output treesize:11 [2020-12-09 09:53:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:53:58,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:53:58,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35684253] [2020-12-09 09:53:58,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:53:58,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-12-09 09:53:58,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17949595] [2020-12-09 09:53:58,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 09:53:58,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:53:58,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 09:53:58,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2020-12-09 09:53:58,461 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 22 states. [2020-12-09 09:54:11,637 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 09:54:11,997 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-09 09:54:12,554 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-12-09 09:54:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:54:30,469 INFO L93 Difference]: Finished difference Result 94 states and 93 transitions. [2020-12-09 09:54:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-09 09:54:30,470 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 33 [2020-12-09 09:54:30,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:54:30,470 INFO L225 Difference]: With dead ends: 94 [2020-12-09 09:54:30,470 INFO L226 Difference]: Without dead ends: 94 [2020-12-09 09:54:30,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=381, Invalid=1781, Unknown=0, NotChecked=0, Total=2162 [2020-12-09 09:54:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-09 09:54:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 71. [2020-12-09 09:54:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-09 09:54:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2020-12-09 09:54:30,472 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 33 [2020-12-09 09:54:30,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:54:30,472 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2020-12-09 09:54:30,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 09:54:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2020-12-09 09:54:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-09 09:54:30,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:54:30,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:54:30,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 mathsat -unsat_core_generation=3 [2020-12-09 09:54:30,674 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:54:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:54:30,675 INFO L82 PathProgramCache]: Analyzing trace with hash -974704182, now seen corresponding path program 1 times [2020-12-09 09:54:30,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:54:30,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184524511] [2020-12-09 09:54:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 37 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with mathsat -unsat_core_generation=3 [2020-12-09 09:54:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:54:30,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-09 09:54:30,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:54:30,908 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:54:30,909 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:30,911 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:30,911 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:30,911 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:54:30,945 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:30,945 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:54:30,946 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:30,953 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:30,953 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:30,953 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:54:30,985 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:54:30,986 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,008 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:54:31,008 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,025 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,025 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:54:31,098 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,098 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-12-09 09:54:31,099 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,115 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,116 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,116 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:35 [2020-12-09 09:54:31,195 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:54:31,196 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,244 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,245 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:54:31,246 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:54:31,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:31,246 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,267 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,267 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:45 [2020-12-09 09:54:31,455 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:54:31,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,482 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,482 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:82 [2020-12-09 09:54:31,717 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,717 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 150 [2020-12-09 09:54:31,719 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:54:31,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:31,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:54:31,721 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,752 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,821 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:31,821 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 146 [2020-12-09 09:54:31,823 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:54:31,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:31,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:54:31,824 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:54:31,824 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:54:31,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:31,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:31,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:31,825 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:54:31,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:54:31,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:31,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:54:31,828 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 6 xjuncts. [2020-12-09 09:54:31,922 INFO L625 ElimStorePlain]: treesize reduction 615, result has 15.6 percent of original size [2020-12-09 09:54:31,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:31,924 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:146, output treesize:80 [2020-12-09 09:54:32,142 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 65 [2020-12-09 09:54:32,144 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:32,165 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:32,166 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:32,166 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:65 [2020-12-09 09:54:32,285 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:32,285 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 63 [2020-12-09 09:54:32,287 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:54:32,287 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:54:32,289 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:54:32,290 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:32,292 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:32,292 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:32,292 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:69, output treesize:7 [2020-12-09 09:54:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:54:32,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:54:32,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184524511] [2020-12-09 09:54:32,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:54:32,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-12-09 09:54:32,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68773735] [2020-12-09 09:54:32,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-09 09:54:32,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:54:32,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-09 09:54:32,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-12-09 09:54:32,341 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 21 states. [2020-12-09 09:54:46,592 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-09 09:54:46,898 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 09:54:47,205 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-09 09:54:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:54:49,822 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2020-12-09 09:54:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-09 09:54:49,823 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 34 [2020-12-09 09:54:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:54:49,823 INFO L225 Difference]: With dead ends: 70 [2020-12-09 09:54:49,824 INFO L226 Difference]: Without dead ends: 70 [2020-12-09 09:54:49,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=350, Invalid=1456, Unknown=0, NotChecked=0, Total=1806 [2020-12-09 09:54:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-12-09 09:54:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-12-09 09:54:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-09 09:54:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2020-12-09 09:54:49,825 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 34 [2020-12-09 09:54:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:54:49,825 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2020-12-09 09:54:49,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-09 09:54:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2020-12-09 09:54:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-09 09:54:49,826 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:54:49,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:54:50,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 mathsat -unsat_core_generation=3 [2020-12-09 09:54:50,027 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:54:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:54:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash -151058442, now seen corresponding path program 1 times [2020-12-09 09:54:50,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:54:50,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449213706] [2020-12-09 09:54:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 38 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with mathsat -unsat_core_generation=3 [2020-12-09 09:54:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:54:50,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-09 09:54:50,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:54:50,241 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:54:50,242 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,244 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,244 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,244 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:54:50,274 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,274 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:54:50,275 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,282 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,282 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-12-09 09:54:50,314 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:54:50,316 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,335 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:54:50,339 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,354 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,355 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,355 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:54:50,464 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,464 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 91 [2020-12-09 09:54:50,466 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,492 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,493 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:56 [2020-12-09 09:54:50,630 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,630 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 84 [2020-12-09 09:54:50,631 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:54:50,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:54:50,632 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,676 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:54:50,678 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,706 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:50,707 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:50,707 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:90, output treesize:80 [2020-12-09 09:54:51,016 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:51,016 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 183 [2020-12-09 09:54:51,018 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:51,067 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:51,067 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:51,068 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:143 [2020-12-09 09:54:51,400 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:51,400 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 170 [2020-12-09 09:54:51,403 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-09 09:54:51,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:54:51,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-09 09:54:51,404 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-09 09:54:51,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:54:51,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-09 09:54:51,406 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-09 09:54:51,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:54:51,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-09 09:54:51,409 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-09 09:54:51,583 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-09 09:54:51,584 INFO L625 ElimStorePlain]: treesize reduction 392, result has 32.8 percent of original size [2020-12-09 09:54:51,658 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:51,659 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 171 [2020-12-09 09:54:51,661 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:54:51,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:51,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:51,662 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:54:51,662 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:54:51,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:51,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:54:51,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:51,664 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:54:51,664 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:51,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:54:51,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:51,666 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:54:51,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:54:51,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:54:51,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:51,669 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 6 xjuncts. [2020-12-09 09:54:51,819 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-12-09 09:54:51,819 INFO L625 ElimStorePlain]: treesize reduction 790, result has 18.3 percent of original size [2020-12-09 09:54:51,821 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:54:51,821 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:207, output treesize:225 [2020-12-09 09:54:52,097 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 138 [2020-12-09 09:54:52,099 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:52,143 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:52,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:52,145 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:253, output treesize:152 [2020-12-09 09:54:52,270 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:52,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 87 [2020-12-09 09:54:52,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:52,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:54:52,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:54:52,275 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:54:52,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:52,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:54:52,280 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:54:52,282 INFO L547 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:52,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:54:52,316 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:52,317 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:158, output treesize:47 [2020-12-09 09:54:52,425 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2020-12-09 09:54:52,428 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:54:52,477 INFO L625 ElimStorePlain]: treesize reduction 12, result has 75.5 percent of original size [2020-12-09 09:54:52,478 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:54:52,479 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:37 [2020-12-09 09:54:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:54:52,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:54:52,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449213706] [2020-12-09 09:54:52,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:54:52,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-12-09 09:54:52,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856721426] [2020-12-09 09:54:52,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 09:54:52,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:54:52,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 09:54:52,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-12-09 09:54:52,571 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 22 states. [2020-12-09 09:54:57,366 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-09 09:55:00,141 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-09 09:55:00,416 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-09 09:55:02,796 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-12-09 09:55:04,993 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-09 09:55:05,362 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-12-09 09:55:05,938 WARN L197 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-12-09 09:55:09,605 WARN L197 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 111 DAG size of output: 110 [2020-12-09 09:55:12,285 WARN L197 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 135 DAG size of output: 115 [2020-12-09 09:55:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:12,637 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2020-12-09 09:55:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-09 09:55:12,637 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 35 [2020-12-09 09:55:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:12,638 INFO L225 Difference]: With dead ends: 78 [2020-12-09 09:55:12,638 INFO L226 Difference]: Without dead ends: 78 [2020-12-09 09:55:12,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2020-12-09 09:55:12,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-12-09 09:55:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2020-12-09 09:55:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-09 09:55:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2020-12-09 09:55:12,639 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 35 [2020-12-09 09:55:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:12,640 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2020-12-09 09:55:12,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 09:55:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2020-12-09 09:55:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 09:55:12,640 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:12,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:12,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 mathsat -unsat_core_generation=3 [2020-12-09 09:55:12,841 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash -387844337, now seen corresponding path program 1 times [2020-12-09 09:55:12,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:12,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794339938] [2020-12-09 09:55:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 39 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-09 09:55:13,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:13,046 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:55:13,046 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,049 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,049 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,049 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:55:13,083 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,083 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:55:13,084 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,092 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,093 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,093 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-12-09 09:55:13,129 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:13,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,149 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,153 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:13,153 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,167 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,169 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,169 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:55:13,247 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,247 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-09 09:55:13,248 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,264 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,264 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:35 [2020-12-09 09:55:13,365 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,365 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 84 [2020-12-09 09:55:13,367 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:55:13,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:55:13,367 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,397 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:55:13,398 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,422 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,423 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,423 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:56 [2020-12-09 09:55:13,649 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,649 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2020-12-09 09:55:13,650 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:13,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:83 [2020-12-09 09:55:13,916 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:13,916 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 154 [2020-12-09 09:55:13,918 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:55:13,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:13,919 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:13,919 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:13,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:13,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:55:13,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:55:13,921 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:55:13,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:13,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:13,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:13,923 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:55:13,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:13,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:13,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:13,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 6 xjuncts. [2020-12-09 09:55:14,055 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2020-12-09 09:55:14,055 INFO L625 ElimStorePlain]: treesize reduction 774, result has 14.5 percent of original size [2020-12-09 09:55:14,125 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:14,125 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 146 [2020-12-09 09:55:14,127 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:55:14,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:14,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:14,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:55:14,129 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:14,156 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:14,157 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:14,157 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:147, output treesize:81 [2020-12-09 09:55:14,370 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 66 [2020-12-09 09:55:14,371 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:14,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:14,393 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:14,393 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:77 [2020-12-09 09:55:14,572 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-09 09:55:14,573 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:14,611 INFO L625 ElimStorePlain]: treesize reduction 20, result has 75.9 percent of original size [2020-12-09 09:55:14,611 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:14,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:86, output treesize:65 [2020-12-09 09:55:14,738 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:14,738 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 68 [2020-12-09 09:55:14,740 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:55:14,740 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:55:14,741 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:55:14,741 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:55:14,743 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:14,751 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:14,752 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:14,752 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:13 [2020-12-09 09:55:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:14,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:14,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794339938] [2020-12-09 09:55:14,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:14,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-09 09:55:14,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165474892] [2020-12-09 09:55:14,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-09 09:55:14,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:14,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-09 09:55:14,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2020-12-09 09:55:14,842 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 23 states. [2020-12-09 09:55:18,394 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-09 09:55:20,731 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-09 09:55:20,930 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-09 09:55:23,216 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-09 09:55:23,654 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-09 09:55:23,877 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-09 09:55:24,147 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-09 09:55:24,474 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-12-09 09:55:25,613 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-12-09 09:55:34,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:34,175 INFO L93 Difference]: Finished difference Result 91 states and 90 transitions. [2020-12-09 09:55:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-09 09:55:34,175 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 36 [2020-12-09 09:55:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:34,176 INFO L225 Difference]: With dead ends: 91 [2020-12-09 09:55:34,176 INFO L226 Difference]: Without dead ends: 91 [2020-12-09 09:55:34,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=382, Invalid=1874, Unknown=0, NotChecked=0, Total=2256 [2020-12-09 09:55:34,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-12-09 09:55:34,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2020-12-09 09:55:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-09 09:55:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-12-09 09:55:34,178 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 36 [2020-12-09 09:55:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:34,178 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-12-09 09:55:34,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-09 09:55:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-12-09 09:55:34,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 09:55:34,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:34,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:34,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 mathsat -unsat_core_generation=3 [2020-12-09 09:55:34,379 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:34,379 INFO L82 PathProgramCache]: Analyzing trace with hash -387844336, now seen corresponding path program 1 times [2020-12-09 09:55:34,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:34,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204448950] [2020-12-09 09:55:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 40 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:34,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 09:55:34,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:34,568 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2020-12-09 09:55:34,569 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:34,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:34,588 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-09 09:55:34,588 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:34,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:34,601 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:34,602 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:13 [2020-12-09 09:55:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:34,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:34,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204448950] [2020-12-09 09:55:34,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:34,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:55:34,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314408315] [2020-12-09 09:55:34,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:55:34,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:55:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:55:34,644 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 6 states. [2020-12-09 09:55:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:35,170 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2020-12-09 09:55:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:55:35,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-12-09 09:55:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:35,172 INFO L225 Difference]: With dead ends: 69 [2020-12-09 09:55:35,172 INFO L226 Difference]: Without dead ends: 69 [2020-12-09 09:55:35,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:55:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-09 09:55:35,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-09 09:55:35,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-09 09:55:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-12-09 09:55:35,173 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 36 [2020-12-09 09:55:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:35,173 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-12-09 09:55:35,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:55:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-12-09 09:55:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 09:55:35,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:35,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:35,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 mathsat -unsat_core_generation=3 [2020-12-09 09:55:35,375 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash -974650351, now seen corresponding path program 1 times [2020-12-09 09:55:35,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:35,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268670677] [2020-12-09 09:55:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 41 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:35,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-09 09:55:35,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:35,550 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:55:35,551 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,553 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,553 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,553 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:55:35,588 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,589 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:55:35,590 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,600 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,600 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,600 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2020-12-09 09:55:35,640 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:35,640 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:35,666 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,685 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,686 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:41, output treesize:31 [2020-12-09 09:55:35,795 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,795 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 93 [2020-12-09 09:55:35,796 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,826 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:35,827 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,827 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:64 [2020-12-09 09:55:35,932 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:55:35,932 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:35,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,003 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,003 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 82 [2020-12-09 09:55:36,004 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:55:36,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:36,005 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:36,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,042 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:36,042 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:96, output treesize:88 [2020-12-09 09:55:36,505 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,505 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 171 [2020-12-09 09:55:36,507 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:55:36,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:36,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:36,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:36,509 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:36,553 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,643 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:36,643 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 157 treesize of output 160 [2020-12-09 09:55:36,646 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-09 09:55:36,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:36,646 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-09 09:55:36,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:55:36,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-09 09:55:36,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:55:36,650 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-09 09:55:36,757 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-09 09:55:36,758 INFO L625 ElimStorePlain]: treesize reduction 161, result has 47.9 percent of original size [2020-12-09 09:55:36,759 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:36,760 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:178, output treesize:119 [2020-12-09 09:55:37,040 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 76 [2020-12-09 09:55:37,042 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:37,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,076 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:37,076 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:147, output treesize:100 [2020-12-09 09:55:37,310 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,311 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 158 [2020-12-09 09:55:37,312 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:37,396 INFO L625 ElimStorePlain]: treesize reduction 68, result has 67.0 percent of original size [2020-12-09 09:55:37,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,400 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,402 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:37,402 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:109, output treesize:136 [2020-12-09 09:55:37,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:37,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:37,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:37,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:37,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:37,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:37,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:37,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:37,591 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 79 [2020-12-09 09:55:37,592 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:37,659 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,659 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 76 [2020-12-09 09:55:37,660 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:37,727 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,727 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 78 [2020-12-09 09:55:37,728 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:55:37,728 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:55:37,730 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:37,771 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:37,771 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 81 [2020-12-09 09:55:37,772 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:55:37,773 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:55:37,774 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:37,843 INFO L625 ElimStorePlain]: treesize reduction 51, result has 49.5 percent of original size [2020-12-09 09:55:37,845 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-09 09:55:37,845 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:461, output treesize:47 [2020-12-09 09:55:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:37,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:37,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268670677] [2020-12-09 09:55:37,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:37,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-09 09:55:37,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347177861] [2020-12-09 09:55:37,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-09 09:55:37,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:37,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-09 09:55:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=413, Unknown=3, NotChecked=0, Total=506 [2020-12-09 09:55:37,948 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 23 states. [2020-12-09 09:55:38,924 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-09 09:55:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:43,227 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2020-12-09 09:55:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-09 09:55:43,228 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 36 [2020-12-09 09:55:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:43,228 INFO L225 Difference]: With dead ends: 74 [2020-12-09 09:55:43,228 INFO L226 Difference]: Without dead ends: 74 [2020-12-09 09:55:43,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=324, Invalid=1650, Unknown=6, NotChecked=0, Total=1980 [2020-12-09 09:55:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-09 09:55:43,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2020-12-09 09:55:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-09 09:55:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2020-12-09 09:55:43,230 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 36 [2020-12-09 09:55:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:43,230 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2020-12-09 09:55:43,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-09 09:55:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2020-12-09 09:55:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 09:55:43,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:43,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:43,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 mathsat -unsat_core_generation=3 [2020-12-09 09:55:43,432 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:43,433 INFO L82 PathProgramCache]: Analyzing trace with hash 861727512, now seen corresponding path program 1 times [2020-12-09 09:55:43,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:43,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072979837] [2020-12-09 09:55:43,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 42 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:43,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-09 09:55:43,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:43,744 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:55:43,744 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,746 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,746 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,747 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:55:43,776 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,776 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:55:43,778 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,785 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,786 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,786 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:55:43,821 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:43,822 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,840 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,844 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:43,844 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,861 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,861 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:55:43,936 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,936 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-12-09 09:55:43,937 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,957 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:43,957 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:43,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:38 [2020-12-09 09:55:44,077 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,077 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 77 [2020-12-09 09:55:44,078 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:55:44,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:44,079 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,100 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,105 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:55:44,106 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,123 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,123 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:60 [2020-12-09 09:55:44,438 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 142 [2020-12-09 09:55:44,440 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:55:44,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:44,441 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:44,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:44,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-09 09:55:44,543 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-12-09 09:55:44,543 INFO L625 ElimStorePlain]: treesize reduction 240, result has 32.2 percent of original size [2020-12-09 09:55:44,625 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,625 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 146 [2020-12-09 09:55:44,626 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:55:44,627 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:55:44,628 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2020-12-09 09:55:44,718 INFO L625 ElimStorePlain]: treesize reduction 193, result has 33.7 percent of original size [2020-12-09 09:55:44,720 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,720 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:130, output treesize:60 [2020-12-09 09:55:44,806 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,806 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 46 [2020-12-09 09:55:44,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,818 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:44,818 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:23 [2020-12-09 09:55:44,864 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2020-12-09 09:55:44,865 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:44,872 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:44,872 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2020-12-09 09:55:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:44,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:44,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072979837] [2020-12-09 09:55:44,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:44,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-09 09:55:44,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487824604] [2020-12-09 09:55:44,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 09:55:44,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:44,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 09:55:44,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-12-09 09:55:44,908 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 17 states. [2020-12-09 09:55:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:47,398 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-12-09 09:55:47,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-09 09:55:47,398 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 37 [2020-12-09 09:55:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:47,399 INFO L225 Difference]: With dead ends: 65 [2020-12-09 09:55:47,399 INFO L226 Difference]: Without dead ends: 65 [2020-12-09 09:55:47,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 09:55:47,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-09 09:55:47,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2020-12-09 09:55:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-09 09:55:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-12-09 09:55:47,400 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 37 [2020-12-09 09:55:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:47,400 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-12-09 09:55:47,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 09:55:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-12-09 09:55:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-09 09:55:47,401 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:47,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:47,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 mathsat -unsat_core_generation=3 [2020-12-09 09:55:47,602 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:47,603 INFO L82 PathProgramCache]: Analyzing trace with hash 943749231, now seen corresponding path program 1 times [2020-12-09 09:55:47,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:47,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938305746] [2020-12-09 09:55:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 43 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:47,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-09 09:55:47,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:47,789 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:55:47,789 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,791 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,792 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,792 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:55:47,821 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,821 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-09 09:55:47,822 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,830 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,830 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,831 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2020-12-09 09:55:47,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:47,866 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,887 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:47,888 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,902 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,904 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:47,904 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:55:47,982 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:47,982 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-12-09 09:55:47,983 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,007 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,008 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,008 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:38 [2020-12-09 09:55:48,122 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,122 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 77 [2020-12-09 09:55:48,123 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:55:48,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:48,124 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,157 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:55:48,158 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,184 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,185 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,185 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:70, output treesize:60 [2020-12-09 09:55:48,408 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_65|], 6=[|v_#memory_$Pointer$.base_81|]} [2020-12-09 09:55:48,443 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,443 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 116 [2020-12-09 09:55:48,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:55:48,445 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,570 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,570 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 130 [2020-12-09 09:55:48,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:48,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:55:48,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:55:48,573 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:55:48,574 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-09 09:55:48,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:48,575 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:48,575 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:48,575 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:48,576 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:55:48,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:48,578 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 7 xjuncts. [2020-12-09 09:55:48,733 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 28 [2020-12-09 09:55:48,734 INFO L625 ElimStorePlain]: treesize reduction 873, result has 10.1 percent of original size [2020-12-09 09:55:48,736 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,736 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:130, output treesize:60 [2020-12-09 09:55:48,834 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2020-12-09 09:55:48,835 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,856 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:48,856 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:55 [2020-12-09 09:55:48,925 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,925 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 34 [2020-12-09 09:55:48,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:55:48,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,935 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:48,936 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:48,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:3 [2020-12-09 09:55:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:48,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:48,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938305746] [2020-12-09 09:55:48,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:48,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-09 09:55:48,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736884646] [2020-12-09 09:55:48,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 09:55:48,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:48,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 09:55:48,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-12-09 09:55:48,985 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 17 states. [2020-12-09 09:55:56,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:55:56,251 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2020-12-09 09:55:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-09 09:55:56,251 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 38 [2020-12-09 09:55:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:55:56,252 INFO L225 Difference]: With dead ends: 64 [2020-12-09 09:55:56,252 INFO L226 Difference]: Without dead ends: 64 [2020-12-09 09:55:56,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 09:55:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-12-09 09:55:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 54. [2020-12-09 09:55:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-09 09:55:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-12-09 09:55:56,253 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 38 [2020-12-09 09:55:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:55:56,254 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-12-09 09:55:56,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 09:55:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-12-09 09:55:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-09 09:55:56,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:55:56,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:55:56,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 mathsat -unsat_core_generation=3 [2020-12-09 09:55:56,455 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:55:56,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:55:56,456 INFO L82 PathProgramCache]: Analyzing trace with hash -808544774, now seen corresponding path program 1 times [2020-12-09 09:55:56,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:55:56,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984771379] [2020-12-09 09:55:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 44 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with mathsat -unsat_core_generation=3 [2020-12-09 09:55:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:55:56,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-09 09:55:56,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:55:56,659 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:55:56,660 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,662 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,662 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:55:56,692 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,692 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:55:56,693 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,700 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,700 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-12-09 09:55:56,730 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:56,730 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,750 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:55:56,751 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,765 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,766 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,766 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:55:56,868 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,868 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 91 [2020-12-09 09:55:56,869 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,895 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:56,896 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:56,896 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:59 [2020-12-09 09:55:57,027 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,028 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 82 [2020-12-09 09:55:57,029 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:55:57,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:55:57,030 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,066 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:55:57,067 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,091 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,091 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,091 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:95 [2020-12-09 09:55:57,397 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,397 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-09 09:55:57,398 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,439 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,439 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:118 [2020-12-09 09:55:57,690 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 174 [2020-12-09 09:55:57,693 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-09 09:55:57,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:55:57,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-09 09:55:57,695 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,744 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,812 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:57,812 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 165 treesize of output 176 [2020-12-09 09:55:57,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:55:57,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:55:57,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:57,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:57,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:57,816 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:55:57,816 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:57,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:55:57,818 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2020-12-09 09:55:57,951 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-09 09:55:57,951 INFO L625 ElimStorePlain]: treesize reduction 419, result has 25.7 percent of original size [2020-12-09 09:55:57,953 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:57,953 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:199, output treesize:155 [2020-12-09 09:55:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:55:58,508 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2020-12-09 09:55:58,509 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:55:58,583 INFO L625 ElimStorePlain]: treesize reduction 32, result has 83.0 percent of original size [2020-12-09 09:55:58,584 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:55:58,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:189, output treesize:156 [2020-12-09 09:55:58,832 INFO L443 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.offset|], 12=[|#memory_$Pointer$.base|]} [2020-12-09 09:55:58,835 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 114 [2020-12-09 09:55:58,837 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:58,872 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:58,912 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:58,913 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 76 [2020-12-09 09:55:58,914 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:55:58,915 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:55:58,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:55:58,918 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:58,931 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:55:58,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:55:58,932 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:171, output treesize:13 [2020-12-09 09:55:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:55:59,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:55:59,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984771379] [2020-12-09 09:55:59,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:55:59,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-12-09 09:55:59,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391482884] [2020-12-09 09:55:59,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 09:55:59,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:55:59,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 09:55:59,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2020-12-09 09:55:59,025 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 24 states. [2020-12-09 09:56:00,069 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-09 09:56:01,019 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-09 09:56:01,276 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 09:56:01,965 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-09 09:56:02,182 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-09 09:56:02,441 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-09 09:56:02,710 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-09 09:56:02,990 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-09 09:56:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:03,345 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2020-12-09 09:56:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-09 09:56:03,346 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2020-12-09 09:56:03,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:03,347 INFO L225 Difference]: With dead ends: 69 [2020-12-09 09:56:03,347 INFO L226 Difference]: Without dead ends: 69 [2020-12-09 09:56:03,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=379, Invalid=1783, Unknown=0, NotChecked=0, Total=2162 [2020-12-09 09:56:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-09 09:56:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-09 09:56:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-09 09:56:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-12-09 09:56:03,349 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 39 [2020-12-09 09:56:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:03,349 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-12-09 09:56:03,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 09:56:03,349 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-12-09 09:56:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-09 09:56:03,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:03,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:03,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 mathsat -unsat_core_generation=3 [2020-12-09 09:56:03,550 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:03,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:03,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1829613128, now seen corresponding path program 1 times [2020-12-09 09:56:03,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:03,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559711106] [2020-12-09 09:56:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 45 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:03,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-09 09:56:03,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:03,817 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:56:03,818 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:03,820 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,820 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:56:03,853 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:03,853 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 09:56:03,854 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:03,862 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,862 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-12-09 09:56:03,894 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:03,894 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,911 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:03,914 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:03,915 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,929 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:03,930 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:03,931 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2020-12-09 09:56:04,037 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,038 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 91 [2020-12-09 09:56:04,039 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,069 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,070 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,070 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:60 [2020-12-09 09:56:04,187 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2020-12-09 09:56:04,189 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,223 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,255 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,255 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 80 [2020-12-09 09:56:04,256 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:56:04,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:04,257 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,288 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,289 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,289 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:94, output treesize:96 [2020-12-09 09:56:04,936 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:04,936 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 164 treesize of output 183 [2020-12-09 09:56:04,938 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:56:04,938 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:04,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:04,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:04,940 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:04,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:05,078 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:05,078 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 164 [2020-12-09 09:56:05,081 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-09 09:56:05,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:05,082 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-09 09:56:05,082 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-09 09:56:05,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:56:05,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-09 09:56:05,084 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-09 09:56:05,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:56:05,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:05,086 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-09 09:56:05,086 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:05,087 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-09 09:56:05,089 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 5 xjuncts. [2020-12-09 09:56:05,238 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-12-09 09:56:05,238 INFO L625 ElimStorePlain]: treesize reduction 868, result has 15.4 percent of original size [2020-12-09 09:56:05,240 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:05,240 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:188, output treesize:125 [2020-12-09 09:56:05,820 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:05,820 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 230 [2020-12-09 09:56:05,821 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:05,926 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2020-12-09 09:56:05,927 INFO L625 ElimStorePlain]: treesize reduction 100, result has 67.9 percent of original size [2020-12-09 09:56:05,928 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:05,928 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:161, output treesize:210 [2020-12-09 09:56:06,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:06,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:06,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:06,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:06,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:06,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:06,036 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:06,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:06,043 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:06,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:06,060 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 101 [2020-12-09 09:56:06,061 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:06,073 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 82 [2020-12-09 09:56:06,075 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:06,088 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 116 [2020-12-09 09:56:06,090 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:06,098 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 97 [2020-12-09 09:56:06,100 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:06,383 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-09 09:56:06,384 INFO L625 ElimStorePlain]: treesize reduction 169, result has 63.2 percent of original size [2020-12-09 09:56:06,389 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2020-12-09 09:56:06,389 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:733, output treesize:292 [2020-12-09 09:56:06,543 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:06,622 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:06,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 66 [2020-12-09 09:56:06,624 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:06,867 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-12-09 09:56:06,867 INFO L625 ElimStorePlain]: treesize reduction 12, result has 95.1 percent of original size [2020-12-09 09:56:06,920 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:06,921 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 80 [2020-12-09 09:56:06,922 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:06,922 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:06,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:06,924 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:07,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:07,064 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:07,064 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 73 [2020-12-09 09:56:07,066 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:07,066 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:07,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:07,068 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:07,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:07,069 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:07,202 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2020-12-09 09:56:07,202 INFO L625 ElimStorePlain]: treesize reduction 21, result has 79.4 percent of original size [2020-12-09 09:56:07,205 INFO L547 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-12-09 09:56:07,205 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 15 variables, input treesize:304, output treesize:76 [2020-12-09 09:56:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:07,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:07,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559711106] [2020-12-09 09:56:07,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:07,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-09 09:56:07,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043893236] [2020-12-09 09:56:07,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-09 09:56:07,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:07,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-09 09:56:07,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2020-12-09 09:56:07,339 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 25 states. [2020-12-09 09:56:08,104 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-09 09:56:09,427 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-09 09:56:09,786 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-09 09:56:10,026 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-09 09:56:10,253 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-09 09:56:10,500 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-09 09:56:10,822 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-12-09 09:56:11,120 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-12-09 09:56:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:13,257 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2020-12-09 09:56:13,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-09 09:56:13,257 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2020-12-09 09:56:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:13,258 INFO L225 Difference]: With dead ends: 68 [2020-12-09 09:56:13,258 INFO L226 Difference]: Without dead ends: 68 [2020-12-09 09:56:13,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=342, Invalid=1914, Unknown=0, NotChecked=0, Total=2256 [2020-12-09 09:56:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-09 09:56:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2020-12-09 09:56:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-09 09:56:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2020-12-09 09:56:13,259 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 39 [2020-12-09 09:56:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:13,260 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2020-12-09 09:56:13,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-09 09:56:13,260 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2020-12-09 09:56:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-09 09:56:13,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:13,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:13,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 mathsat -unsat_core_generation=3 [2020-12-09 09:56:13,460 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:13,461 INFO L82 PathProgramCache]: Analyzing trace with hash 704915923, now seen corresponding path program 1 times [2020-12-09 09:56:13,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:13,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259444593] [2020-12-09 09:56:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 46 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:13,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 09:56:13,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:13,725 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2020-12-09 09:56:13,726 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:13,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:13,736 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:13,736 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2020-12-09 09:56:13,815 INFO L443 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-12-09 09:56:13,830 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:13,830 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2020-12-09 09:56:13,831 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,832 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,832 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:13,882 INFO L625 ElimStorePlain]: treesize reduction 3, result has 95.1 percent of original size [2020-12-09 09:56:13,922 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:13,922 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 67 [2020-12-09 09:56:13,924 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,924 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,924 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,925 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,926 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,927 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,927 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,928 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:13,928 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,928 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,929 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,929 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,930 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:13,931 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,931 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,932 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,933 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,933 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,934 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,934 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,935 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,935 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,936 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,937 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,937 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,938 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,938 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,938 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,940 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,940 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,942 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,942 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,942 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,943 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,943 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,944 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,944 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,944 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,945 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,945 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,945 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,946 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:13,946 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,946 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,947 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,947 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,948 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:13,949 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,949 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,950 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:13,953 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,953 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,953 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,954 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,955 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:13,955 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,956 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:13,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,957 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:13,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:13,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,959 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:13,959 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:13,960 INFO L547 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:14,039 INFO L625 ElimStorePlain]: treesize reduction 18, result has 71.4 percent of original size [2020-12-09 09:56:14,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:14,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:14,044 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:14,044 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:25 [2020-12-09 09:56:14,174 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:14,175 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 44 [2020-12-09 09:56:14,176 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:14,202 INFO L625 ElimStorePlain]: treesize reduction 22, result has 45.0 percent of original size [2020-12-09 09:56:14,203 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:14,203 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:18 [2020-12-09 09:56:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:14,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:14,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259444593] [2020-12-09 09:56:14,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:14,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-09 09:56:14,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201280910] [2020-12-09 09:56:14,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:56:14,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:14,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:56:14,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-12-09 09:56:14,242 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 13 states. [2020-12-09 09:56:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:17,171 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-12-09 09:56:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 09:56:17,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-12-09 09:56:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:17,172 INFO L225 Difference]: With dead ends: 52 [2020-12-09 09:56:17,172 INFO L226 Difference]: Without dead ends: 52 [2020-12-09 09:56:17,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2020-12-09 09:56:17,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-09 09:56:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-09 09:56:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 09:56:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-12-09 09:56:17,173 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 40 [2020-12-09 09:56:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:17,173 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-12-09 09:56:17,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:56:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-12-09 09:56:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-09 09:56:17,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:17,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:17,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 mathsat -unsat_core_generation=3 [2020-12-09 09:56:17,375 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash 377557214, now seen corresponding path program 1 times [2020-12-09 09:56:17,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:17,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846783892] [2020-12-09 09:56:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 47 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:17,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-09 09:56:17,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:17,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:56:17,591 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,593 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,593 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,593 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:56:17,609 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,610 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:56:17,610 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,615 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,616 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,616 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:8 [2020-12-09 09:56:17,648 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:17,649 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,667 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:17,668 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,677 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,677 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:16 [2020-12-09 09:56:17,750 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,750 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 09:56:17,751 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,769 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,769 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:34 [2020-12-09 09:56:17,876 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,876 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 73 [2020-12-09 09:56:17,877 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-09 09:56:17,877 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:17,877 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,909 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2020-12-09 09:56:17,910 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:17,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:17,932 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:66, output treesize:32 [2020-12-09 09:56:18,092 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:18,093 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 31 [2020-12-09 09:56:18,094 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:18,095 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,102 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:18,103 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,103 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:12 [2020-12-09 09:56:18,141 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-09 09:56:18,142 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,153 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:18,154 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,154 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:7 [2020-12-09 09:56:18,179 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 09:56:18,180 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:18,183 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:18,183 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-09 09:56:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:18,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:18,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846783892] [2020-12-09 09:56:18,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:18,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-09 09:56:18,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078454814] [2020-12-09 09:56:18,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-09 09:56:18,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-09 09:56:18,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-12-09 09:56:18,218 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 16 states. [2020-12-09 09:56:19,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:19,575 INFO L93 Difference]: Finished difference Result 78 states and 77 transitions. [2020-12-09 09:56:19,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-09 09:56:19,576 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 41 [2020-12-09 09:56:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:19,576 INFO L225 Difference]: With dead ends: 78 [2020-12-09 09:56:19,576 INFO L226 Difference]: Without dead ends: 78 [2020-12-09 09:56:19,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2020-12-09 09:56:19,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-12-09 09:56:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 51. [2020-12-09 09:56:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-09 09:56:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-12-09 09:56:19,578 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 41 [2020-12-09 09:56:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:19,578 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-12-09 09:56:19,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-09 09:56:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-12-09 09:56:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 09:56:19,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:19,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:19,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 mathsat -unsat_core_generation=3 [2020-12-09 09:56:19,779 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:19,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:19,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1180628109, now seen corresponding path program 1 times [2020-12-09 09:56:19,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:19,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751599879] [2020-12-09 09:56:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 48 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:19,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-09 09:56:19,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:19,951 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 09:56:19,952 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:19,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:19,954 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:19,954 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 09:56:19,975 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:19,975 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:56:19,976 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:19,986 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:19,986 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:19,986 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2020-12-09 09:56:20,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:20,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,054 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:20,054 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,072 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,073 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,073 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:16 [2020-12-09 09:56:20,152 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,152 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-09 09:56:20,152 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,172 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,173 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,173 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:34 [2020-12-09 09:56:20,298 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,298 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 76 [2020-12-09 09:56:20,299 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:56:20,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:20,300 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,323 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,328 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2020-12-09 09:56:20,329 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,350 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,351 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,351 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:66, output treesize:32 [2020-12-09 09:56:20,462 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2020-12-09 09:56:20,463 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,480 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,480 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:35 [2020-12-09 09:56:20,699 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,699 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 99 [2020-12-09 09:56:20,701 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:20,701 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:20,701 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:20,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:20,702 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:20,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:20,703 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:20,703 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:20,704 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:20,704 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:20,705 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:56:20,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:20,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:20,706 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-09 09:56:20,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:20,706 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:56:20,707 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:20,707 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:20,707 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:20,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:20,708 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:56:20,709 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:20,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:20,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:20,710 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:56:20,710 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:20,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:20,713 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 7 xjuncts. [2020-12-09 09:56:20,851 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2020-12-09 09:56:20,852 INFO L625 ElimStorePlain]: treesize reduction 425, result has 14.8 percent of original size [2020-12-09 09:56:20,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-09 09:56:20,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:55, output treesize:45 [2020-12-09 09:56:20,888 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-12-09 09:56:20,889 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:20,897 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:20,897 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2020-12-09 09:56:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:20,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:20,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751599879] [2020-12-09 09:56:20,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:20,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-09 09:56:20,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145848412] [2020-12-09 09:56:20,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-09 09:56:20,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:20,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-09 09:56:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-12-09 09:56:20,938 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 15 states. [2020-12-09 09:56:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:22,848 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2020-12-09 09:56:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-09 09:56:22,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-12-09 09:56:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:22,849 INFO L225 Difference]: With dead ends: 76 [2020-12-09 09:56:22,849 INFO L226 Difference]: Without dead ends: 76 [2020-12-09 09:56:22,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=234, Invalid=819, Unknown=3, NotChecked=0, Total=1056 [2020-12-09 09:56:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-09 09:56:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 50. [2020-12-09 09:56:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-09 09:56:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-12-09 09:56:22,851 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 42 [2020-12-09 09:56:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:22,851 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-12-09 09:56:22,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-09 09:56:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-12-09 09:56:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-09 09:56:22,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:22,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:23,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 mathsat -unsat_core_generation=3 [2020-12-09 09:56:23,052 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:23,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:23,053 INFO L82 PathProgramCache]: Analyzing trace with hash 2055234432, now seen corresponding path program 1 times [2020-12-09 09:56:23,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:23,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683591745] [2020-12-09 09:56:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 49 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:23,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 09:56:23,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:23,419 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2020-12-09 09:56:23,420 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:23,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:23,424 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:23,424 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:33 [2020-12-09 09:56:23,644 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:23,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 280 [2020-12-09 09:56:23,646 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:23,711 INFO L625 ElimStorePlain]: treesize reduction 152, result has 46.7 percent of original size [2020-12-09 09:56:23,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:23,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:131 [2020-12-09 09:56:23,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:23,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:23,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:23,780 INFO L443 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-12-09 09:56:23,802 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:23,803 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 76 [2020-12-09 09:56:23,804 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:23,823 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:23,824 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 91 [2020-12-09 09:56:23,825 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:24,000 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-09 09:56:24,001 INFO L625 ElimStorePlain]: treesize reduction 39, result has 77.7 percent of original size [2020-12-09 09:56:24,061 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:24,062 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 63 [2020-12-09 09:56:24,063 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,063 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,064 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,064 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,064 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,065 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,065 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,065 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:24,066 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,066 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,066 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,067 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,067 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,067 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,068 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,068 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,069 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,069 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,070 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,070 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,070 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,071 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:24,071 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,071 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,072 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,073 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,073 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,074 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,074 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,074 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,075 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,075 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,076 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:24,076 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,078 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,079 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,079 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,079 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,080 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,080 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,081 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,081 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,082 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,082 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,083 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:24,083 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,083 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,084 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:56:24,085 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,085 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:24,085 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:24,086 INFO L547 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:24,128 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:24,129 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 72 [2020-12-09 09:56:24,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:24,131 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:24,251 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-09 09:56:24,251 INFO L625 ElimStorePlain]: treesize reduction 18, result has 80.0 percent of original size [2020-12-09 09:56:24,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:24,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:24,259 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-09 09:56:24,259 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:263, output treesize:36 [2020-12-09 09:56:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:24,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:24,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683591745] [2020-12-09 09:56:24,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:24,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-09 09:56:24,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541898978] [2020-12-09 09:56:24,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:56:24,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:24,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:56:24,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-12-09 09:56:24,384 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 13 states. [2020-12-09 09:56:25,278 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-09 09:56:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:25,486 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-12-09 09:56:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 09:56:25,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-12-09 09:56:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:25,487 INFO L225 Difference]: With dead ends: 49 [2020-12-09 09:56:25,487 INFO L226 Difference]: Without dead ends: 49 [2020-12-09 09:56:25,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2020-12-09 09:56:25,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-09 09:56:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-12-09 09:56:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-09 09:56:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-12-09 09:56:25,488 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2020-12-09 09:56:25,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:25,488 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-12-09 09:56:25,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:56:25,488 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-12-09 09:56:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-09 09:56:25,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:25,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:25,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 mathsat -unsat_core_generation=3 [2020-12-09 09:56:25,689 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:25,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1564659048, now seen corresponding path program 1 times [2020-12-09 09:56:25,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:25,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700102396] [2020-12-09 09:56:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 50 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:25,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-09 09:56:25,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:25,972 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2020-12-09 09:56:25,973 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:25,982 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:25,982 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:25,982 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2020-12-09 09:56:26,025 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,025 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 43 [2020-12-09 09:56:26,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:26,042 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,042 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:26,043 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:50 [2020-12-09 09:56:26,177 INFO L443 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-12-09 09:56:26,189 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 42 [2020-12-09 09:56:26,190 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:26,200 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,234 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,234 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 46 [2020-12-09 09:56:26,235 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:26,236 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:26,237 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:26,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:26,237 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:26,238 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 09:56:26,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 09:56:26,239 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:26,240 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 09:56:26,241 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 09:56:26,243 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-09 09:56:26,252 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:26,252 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 09:56:26,253 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:15 [2020-12-09 09:56:26,320 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2020-12-09 09:56:26,320 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:26,332 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-09 09:56:26,332 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:26,332 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:11 [2020-12-09 09:56:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:26,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:26,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700102396] [2020-12-09 09:56:26,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:26,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-09 09:56:26,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306152060] [2020-12-09 09:56:26,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-09 09:56:26,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:26,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-09 09:56:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-12-09 09:56:26,374 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 15 states. [2020-12-09 09:56:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:29,720 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2020-12-09 09:56:29,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-09 09:56:29,720 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 46 [2020-12-09 09:56:29,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:29,721 INFO L225 Difference]: With dead ends: 48 [2020-12-09 09:56:29,721 INFO L226 Difference]: Without dead ends: 48 [2020-12-09 09:56:29,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2020-12-09 09:56:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-09 09:56:29,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-09 09:56:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-09 09:56:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-12-09 09:56:29,722 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2020-12-09 09:56:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:29,722 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-12-09 09:56:29,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-09 09:56:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-12-09 09:56:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-09 09:56:29,723 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:29,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:29,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 mathsat -unsat_core_generation=3 [2020-12-09 09:56:29,924 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:29,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1259790074, now seen corresponding path program 1 times [2020-12-09 09:56:29,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:29,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643952709] [2020-12-09 09:56:29,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 51 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:30,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 72 conjunts are in the unsatisfiable core [2020-12-09 09:56:30,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:30,212 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-09 09:56:30,213 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:30,223 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-09 09:56:30,224 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:30,224 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-12-09 09:56:30,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:30,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:30,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:30,426 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:30,426 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:30,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:30,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:30,452 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:63, output treesize:62 [2020-12-09 09:56:30,981 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:30,981 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 104 [2020-12-09 09:56:30,982 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-09 09:56:30,982 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:30,984 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:31,087 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-09 09:56:31,087 INFO L625 ElimStorePlain]: treesize reduction 24, result has 83.6 percent of original size [2020-12-09 09:56:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:31,096 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2020-12-09 09:56:31,099 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:31,143 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:31,143 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:31,144 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:130, output treesize:117 [2020-12-09 09:56:32,518 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-09 09:56:32,518 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:32,519 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 233 treesize of output 254 [2020-12-09 09:56:32,522 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2020-12-09 09:56:32,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,523 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,524 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,524 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,525 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,526 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,528 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,529 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,531 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,533 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,534 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,536 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,536 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,538 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,541 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,544 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,545 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,546 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,547 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,548 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,548 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,549 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,550 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,551 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,551 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,552 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,553 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,554 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,556 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,557 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,559 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,560 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,561 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,562 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,562 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,563 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,564 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,566 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,569 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,569 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,571 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,574 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,575 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,575 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,576 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,578 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,580 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,585 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,587 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,591 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,593 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,595 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,596 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,599 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,602 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,603 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,606 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,607 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,610 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,612 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,612 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,615 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,617 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,618 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,619 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,619 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,621 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,621 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,624 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,624 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,626 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,629 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,630 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,630 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,632 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,633 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,634 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,634 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,635 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,636 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,637 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,638 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,638 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,639 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,639 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,640 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,642 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,642 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,644 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,645 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,645 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,646 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,649 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,649 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,650 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,651 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,652 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,653 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,654 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,655 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,658 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,660 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,662 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,663 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,664 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-09 09:56:32,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,667 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,673 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,674 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,676 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,677 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,680 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,681 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,683 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,683 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,684 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,686 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,687 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,688 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,690 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,690 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,694 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,696 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,696 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,696 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,697 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,698 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,698 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,699 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,700 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,700 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,701 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,701 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,703 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,704 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,707 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,707 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,709 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,711 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,711 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,712 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,714 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,717 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,718 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,721 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,723 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,725 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,726 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,727 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,729 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,731 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,732 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,732 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,734 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,735 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,736 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,737 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,737 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,739 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,740 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,742 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,743 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,745 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,747 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,748 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,751 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,752 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,755 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,757 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,762 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,765 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,765 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,767 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,769 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,770 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,770 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,772 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,774 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,775 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,777 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,780 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,782 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,783 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,783 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,784 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,784 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,786 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,788 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,789 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,790 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,791 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,795 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,796 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,797 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,799 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,799 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,800 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,805 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,805 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,807 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,807 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,808 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,808 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,810 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,811 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,811 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,812 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,816 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,816 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,818 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,819 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,819 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,822 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,823 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,826 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,827 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,829 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,833 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,834 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,834 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,836 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,836 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,838 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,839 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,843 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,843 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,846 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,849 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,851 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,853 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,854 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,854 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,855 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,855 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,858 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,859 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,861 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,861 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,863 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,863 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,864 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,865 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,865 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,866 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,867 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,869 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,870 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,873 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,873 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,873 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,875 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,876 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,877 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,878 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,879 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,880 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,882 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,883 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,887 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,888 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,888 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,889 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,890 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,891 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-09 09:56:32,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,902 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,905 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,906 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,907 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,908 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,908 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,911 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,913 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,914 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,916 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-09 09:56:32,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,921 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,923 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,925 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,926 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,926 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,927 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,927 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-09 09:56:32,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,932 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,933 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,935 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,938 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,939 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,940 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,940 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,941 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,944 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,944 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,945 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,948 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,949 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,952 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,953 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,955 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,958 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-09 09:56:32,959 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,961 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-09 09:56:32,962 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,963 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,966 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,966 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,968 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,968 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,970 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,971 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,971 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,972 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,973 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,974 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,975 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,975 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,976 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,977 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,977 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,978 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,979 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,980 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,982 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,983 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,984 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,985 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,986 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,986 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,989 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,990 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,990 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,991 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-09 09:56:32,991 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-09 09:56:32,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,994 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,996 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,997 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-09 09:56:32,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-09 09:56:32,999 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:33,228 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-12-09 09:56:33,229 INFO L625 ElimStorePlain]: treesize reduction 198, result has 45.2 percent of original size [2020-12-09 09:56:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:33,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:33,250 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:33,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 64 [2020-12-09 09:56:33,252 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:33,338 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:33,339 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:33,340 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:263, output treesize:212 [2020-12-09 09:56:34,030 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-09 09:56:35,159 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-09 09:56:35,516 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-12-09 09:56:36,009 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-09 09:56:36,016 INFO L443 ElimStorePlain]: Different costs {6=[|#memory_$Pointer$.offset|], 20=[|#memory_$Pointer$.base|]} [2020-12-09 09:56:36,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:36,031 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:36,031 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 137 [2020-12-09 09:56:36,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:36,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:36,167 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:36,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 105 [2020-12-09 09:56:36,169 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:36,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,170 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:36,171 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:36,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,175 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:56:36,175 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:36,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,177 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:36,177 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,179 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:36,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,184 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:36,187 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:36,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,188 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:36,188 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:36,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,189 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,190 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-09 09:56:36,191 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:56:36,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,192 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-09 09:56:36,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,194 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-09 09:56:36,194 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 09:56:36,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:56:36,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 09:56:36,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:36,200 INFO L547 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:36,303 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-12-09 09:56:36,303 INFO L625 ElimStorePlain]: treesize reduction 32, result has 72.6 percent of original size [2020-12-09 09:56:36,305 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:36,305 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:265, output treesize:83 [2020-12-09 09:56:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:56:39,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:56:39,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643952709] [2020-12-09 09:56:39,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:56:39,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-12-09 09:56:39,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855566930] [2020-12-09 09:56:39,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-09 09:56:39,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:56:39,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-09 09:56:39,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=769, Unknown=1, NotChecked=0, Total=870 [2020-12-09 09:56:39,146 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 30 states. [2020-12-09 09:56:46,067 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-12-09 09:56:46,596 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-09 09:56:47,129 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-09 09:56:47,806 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-12-09 09:56:48,396 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-09 09:56:48,857 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-12-09 09:56:49,607 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-09 09:56:50,548 WARN L197 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-12-09 09:56:51,290 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-12-09 09:56:51,846 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-09 09:56:52,534 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-09 09:56:53,709 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-12-09 09:56:55,291 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-09 09:56:56,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:56:56,079 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2020-12-09 09:56:56,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-09 09:56:56,080 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 47 [2020-12-09 09:56:56,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:56:56,080 INFO L225 Difference]: With dead ends: 71 [2020-12-09 09:56:56,080 INFO L226 Difference]: Without dead ends: 48 [2020-12-09 09:56:56,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 13 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=205, Invalid=1863, Unknown=2, NotChecked=0, Total=2070 [2020-12-09 09:56:56,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-09 09:56:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-09 09:56:56,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-09 09:56:56,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 47 transitions. [2020-12-09 09:56:56,082 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 47 transitions. Word has length 47 [2020-12-09 09:56:56,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:56:56,082 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 47 transitions. [2020-12-09 09:56:56,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-09 09:56:56,082 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 47 transitions. [2020-12-09 09:56:56,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-09 09:56:56,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:56:56,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:56:56,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 mathsat -unsat_core_generation=3 [2020-12-09 09:56:56,284 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 09:56:56,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:56:56,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1393803580, now seen corresponding path program 1 times [2020-12-09 09:56:56,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:56:56,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264790403] [2020-12-09 09:56:56,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/mathsat Starting monitored process 52 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with mathsat -unsat_core_generation=3 [2020-12-09 09:56:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:56:56,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 62 conjunts are in the unsatisfiable core [2020-12-09 09:56:56,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:56:56,571 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-09 09:56:56,572 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:56,582 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-09 09:56:56,582 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:56,583 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-12-09 09:56:56,732 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:56,733 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:56,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:56,760 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 09:56:56,761 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:56,782 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:56,782 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:56,783 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:55, output treesize:50 [2020-12-09 09:56:57,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:57,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 44 [2020-12-09 09:56:57,168 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:57,206 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:57,240 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:57,241 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 80 [2020-12-09 09:56:57,242 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-09 09:56:57,242 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 09:56:57,243 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:57,311 INFO L625 ElimStorePlain]: treesize reduction 20, result has 81.8 percent of original size [2020-12-09 09:56:57,311 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:57,311 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:114, output treesize:93 [2020-12-09 09:56:58,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:58,194 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-09 09:56:58,194 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:58,195 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 113 treesize of output 191 [2020-12-09 09:56:58,197 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:58,305 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-12-09 09:56:58,305 INFO L625 ElimStorePlain]: treesize reduction 84, result has 61.6 percent of original size [2020-12-09 09:56:58,359 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:58,359 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 125 [2020-12-09 09:56:58,361 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-09 09:56:58,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,362 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,363 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:56:58,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,365 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:58,365 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:56:58,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:58,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,367 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,368 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,368 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,369 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,373 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,374 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:56:58,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:58,376 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-09 09:56:58,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 09:56:58,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,378 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,380 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-09 09:56:58,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 09:56:58,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 09:56:58,381 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:58,496 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-09 09:56:58,496 INFO L625 ElimStorePlain]: treesize reduction 64, result has 60.5 percent of original size [2020-12-09 09:56:58,497 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:56:58,497 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:187, output treesize:110 [2020-12-09 09:56:59,918 INFO L443 ElimStorePlain]: Different costs {6=[|#memory_$Pointer$.offset|], 19=[|#memory_$Pointer$.base|]} [2020-12-09 09:56:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 09:56:59,933 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:56:59,933 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 68 [2020-12-09 09:56:59,935 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 09:56:59,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:57:00,013 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 09:57:00,013 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 82 [2020-12-09 09:57:00,014 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:57:00,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:57:00,014 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:57:00,016 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-09 09:57:00,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 09:57:00,016 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 09:57:00,017 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 09:57:00,066 INFO L625 ElimStorePlain]: treesize reduction 32, result has 63.2 percent of original size [2020-12-09 09:57:00,067 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 09:57:00,067 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:163, output treesize:53 [2020-12-09 09:57:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:57:02,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:57:02,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264790403] [2020-12-09 09:57:02,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:57:02,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-12-09 09:57:02,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943244033] [2020-12-09 09:57:02,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-09 09:57:02,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:57:02,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-09 09:57:02,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=784, Unknown=1, NotChecked=0, Total=870 [2020-12-09 09:57:02,744 INFO L87 Difference]: Start difference. First operand 48 states and 47 transitions. Second operand 30 states. [2020-12-09 09:57:14,492 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-12-09 09:57:14,689 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-09 09:57:15,071 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-12-09 09:57:15,547 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-09 09:57:16,035 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-09 09:57:16,758 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-12-09 09:57:17,530 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-09 09:57:17,949 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-09 09:57:18,517 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-09 09:57:18,962 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-09 09:57:19,580 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-12-09 09:57:20,449 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-12-09 09:57:20,838 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-09 09:57:21,413 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-09 09:57:22,113 WARN L197 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-09 09:57:22,888 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-12-09 09:57:23,747 WARN L197 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-12-09 09:57:24,833 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-09 09:57:25,702 WARN L197 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-09 09:57:26,301 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-09 09:57:26,778 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-12-09 09:57:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:57:31,800 INFO L93 Difference]: Finished difference Result 47 states and 46 transitions. [2020-12-09 09:57:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-09 09:57:31,801 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 47 [2020-12-09 09:57:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:57:31,801 INFO L225 Difference]: With dead ends: 47 [2020-12-09 09:57:31,801 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:57:31,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=341, Invalid=3076, Unknown=5, NotChecked=0, Total=3422 [2020-12-09 09:57:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:57:31,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:57:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:57:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:57:31,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2020-12-09 09:57:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:57:31,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:57:31,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-09 09:57:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:57:31,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:57:32,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 mathsat -unsat_core_generation=3 [2020-12-09 09:57:32,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:57:32 BoogieIcfgContainer [2020-12-09 09:57:32,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:57:32,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:57:32,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:57:32,009 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:57:32,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:52:02" (3/4) ... [2020-12-09 09:57:32,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:57:32,021 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 09:57:32,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 09:57:32,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:57:32,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d214a2ce-b438-4f3e-aea7-47f5b2a763a3/bin/utaipan/witness.graphml [2020-12-09 09:57:32,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:57:32,055 INFO L168 Benchmark]: Toolchain (without parser) took 331004.39 ms. Allocated memory was 60.8 MB in the beginning and 117.4 MB in the end (delta: 56.6 MB). Free memory was 38.7 MB in the beginning and 66.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,055 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:57:32,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.73 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 38.6 MB in the beginning and 44.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.61 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 42.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,055 INFO L168 Benchmark]: Boogie Preprocessor took 21.83 ms. Allocated memory is still 75.5 MB. Free memory was 42.2 MB in the beginning and 40.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,055 INFO L168 Benchmark]: RCFGBuilder took 435.41 ms. Allocated memory is still 75.5 MB. Free memory was 40.4 MB in the beginning and 34.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,056 INFO L168 Benchmark]: TraceAbstraction took 329991.81 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 33.5 MB in the beginning and 70.7 MB in the end (delta: -37.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,056 INFO L168 Benchmark]: Witness Printer took 45.51 ms. Allocated memory is still 117.4 MB. Free memory was 70.7 MB in the beginning and 66.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:57:32,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.73 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 38.6 MB in the beginning and 44.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.61 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 42.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.83 ms. Allocated memory is still 75.5 MB. Free memory was 42.2 MB in the beginning and 40.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 435.41 ms. Allocated memory is still 75.5 MB. Free memory was 40.4 MB in the beginning and 34.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 329991.81 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 33.5 MB in the beginning and 70.7 MB in the end (delta: -37.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Witness Printer took 45.51 ms. Allocated memory is still 117.4 MB. Free memory was 70.7 MB in the beginning and 66.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 783]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 775]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 783]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 776]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 776]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 781]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 785]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 777]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 785]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 778]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 781]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 778]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 781]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 787]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 783]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 783]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 783]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 778]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 778]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 785]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 767]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 770]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 43 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 43 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 329.9s, OverallIterations: 51, TraceHistogramMax: 1, AutomataDifference: 258.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2091 SDtfs, 9143 SDslu, 7815 SDs, 0 SdLazy, 17394 SolverSat, 1334 SolverUnsat, 72 SolverUnknown, 0 SolverNotchecked, 177.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1993 GetRequests, 758 SyntacticMatches, 14 SemanticMatches, 1221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8385 ImplicationChecksByTransitivity, 109.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 51 MinimizatonAttempts, 1931 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 52.9s InterpolantComputationTime, 1387 NumberOfCodeBlocks, 1387 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 1336 ConstructedInterpolants, 211 QuantifiedInterpolants, 1643527 SizeOfPredicates, 1055 NumberOfNonLiveVariables, 6415 ConjunctsInSsa, 1267 ConjunctsInUnsatCore, 51 InterpolantComputations, 51 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...