./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs --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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:55:03,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:55:03,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:55:03,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:55:03,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:55:03,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:55:03,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:55:04,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:55:04,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:55:04,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:55:04,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:55:04,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:55:04,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:55:04,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:55:04,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:55:04,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:55:04,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:55:04,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:55:04,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:55:04,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:55:04,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:55:04,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:55:04,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:55:04,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:55:04,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:55:04,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:55:04,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:55:04,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:55:04,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:55:04,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:55:04,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:55:04,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:55:04,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:55:04,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:55:04,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:55:04,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:55:04,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:55:04,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:55:04,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:55:04,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:55:04,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:55:04,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 14:55:04,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:55:04,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:55:04,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:55:04,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:55:04,126 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:55:04,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:55:04,126 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:55:04,127 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:55:04,127 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:55:04,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:55:04,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:55:04,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:55:04,129 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:55:04,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:55:04,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:55:04,130 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:55:04,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:55:04,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:55:04,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:55:04,132 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:55:04,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:55:04,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:55:04,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:55:04,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:55:04,134 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:55:04,134 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:55:04,136 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:55:04,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:55:04,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:55:04,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:55:04,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:55:04,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:55:04,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:55:04,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:55:04,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:55:04,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:55:04,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:55:04,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:55:04,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:55:04,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:55:04,141 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2021-11-19 14:55:04,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:55:04,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:55:04,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:55:04,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:55:04,545 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:55:04,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2021-11-19 14:55:04,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/9260e13db/5b0e16dcf4ab4ab1a6b116ead465b139/FLAGf91b3b510 [2021-11-19 14:55:05,662 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:55:05,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2021-11-19 14:55:05,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/9260e13db/5b0e16dcf4ab4ab1a6b116ead465b139/FLAGf91b3b510 [2021-11-19 14:55:06,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/9260e13db/5b0e16dcf4ab4ab1a6b116ead465b139 [2021-11-19 14:55:06,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:55:06,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:55:06,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:06,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:55:06,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:55:06,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:06" (1/1) ... [2021-11-19 14:55:06,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8107c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:06, skipping insertion in model container [2021-11-19 14:55:06,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:06" (1/1) ... [2021-11-19 14:55:06,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:55:06,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:55:06,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2021-11-19 14:55:07,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2021-11-19 14:55:07,346 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:07,360 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:55:07,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@608f9a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:07, skipping insertion in model container [2021-11-19 14:55:07,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:07,361 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:55:07,364 INFO L158 Benchmark]: Toolchain (without parser) took 1180.77ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 51.9MB in the end (delta: 8.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:55:07,366 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:07,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1177.30ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 51.9MB in the end (delta: 8.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:55:07,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1177.30ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 51.9MB in the end (delta: 8.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs --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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:55:10,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:55:10,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:55:10,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:55:10,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:55:10,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:55:10,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:55:10,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:55:10,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:55:10,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:55:10,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:55:10,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:55:10,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:55:10,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:55:10,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:55:10,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:55:10,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:55:10,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:55:10,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:55:10,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:55:10,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:55:10,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:55:10,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:55:10,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:55:10,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:55:10,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:55:10,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:55:10,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:55:10,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:55:10,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:55:10,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:55:10,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:55:10,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:55:10,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:55:10,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:55:10,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:55:10,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:55:10,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:55:10,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:55:10,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:55:10,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:55:10,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 14:55:10,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:55:10,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:55:10,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:55:10,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:55:10,520 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:55:10,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:55:10,520 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:55:10,521 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:55:10,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:55:10,521 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:55:10,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:55:10,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:55:10,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:55:10,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:55:10,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:55:10,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:55:10,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:55:10,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:55:10,529 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:55:10,529 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:55:10,529 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:55:10,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:55:10,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:55:10,531 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:55:10,531 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:55:10,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:55:10,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:55:10,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:55:10,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:55:10,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:55:10,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:55:10,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:55:10,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:55:10,535 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:55:10,535 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:55:10,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:55:10,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:55:10,538 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2021-11-19 14:55:11,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:55:11,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:55:11,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:55:11,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:55:11,048 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:55:11,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2021-11-19 14:55:11,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/1cb4b57e9/e706c1d0973f445a8566bf0c4cf84add/FLAG0286cf944 [2021-11-19 14:55:12,238 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:55:12,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2021-11-19 14:55:12,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/1cb4b57e9/e706c1d0973f445a8566bf0c4cf84add/FLAG0286cf944 [2021-11-19 14:55:12,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/data/1cb4b57e9/e706c1d0973f445a8566bf0c4cf84add [2021-11-19 14:55:12,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:55:12,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:55:12,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:12,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:55:12,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:55:12,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:12" (1/1) ... [2021-11-19 14:55:12,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3335fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:12, skipping insertion in model container [2021-11-19 14:55:12,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:12" (1/1) ... [2021-11-19 14:55:12,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:55:12,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:55:13,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2021-11-19 14:55:14,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2021-11-19 14:55:14,088 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:14,104 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:55:14,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:55:14,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2021-11-19 14:55:14,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2021-11-19 14:55:14,303 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:14,309 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:55:14,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2021-11-19 14:55:14,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2021-11-19 14:55:14,481 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:14,543 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:55:14,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14 WrapperNode [2021-11-19 14:55:14,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:14,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:55:14,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:55:14,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:55:14,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,805 INFO L137 Inliner]: procedures = 180, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2870 [2021-11-19 14:55:14,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:55:14,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:55:14,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:55:14,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:55:14,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:14,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:15,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:15,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:15,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:55:15,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:55:15,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:55:15,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:55:15,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (1/1) ... [2021-11-19 14:55:15,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:55:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:55:15,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:55:15,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:55:15,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:55:15,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:55:15,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:55:15,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:55:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:55:15,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:55:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:55:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:55:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:55:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:55:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:55:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:55:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:55:15,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:55:15,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:55:15,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:55:15,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:55:15,547 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:55:15,550 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:55:15,555 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:55:22,957 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:55:22,995 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:55:22,996 INFO L301 CfgBuilder]: Removed 54 assume(true) statements. [2021-11-19 14:55:23,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:23 BoogieIcfgContainer [2021-11-19 14:55:23,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:55:23,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:55:23,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:55:23,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:55:23,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:55:12" (1/3) ... [2021-11-19 14:55:23,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f62c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:55:23, skipping insertion in model container [2021-11-19 14:55:23,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:14" (2/3) ... [2021-11-19 14:55:23,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f62c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:55:23, skipping insertion in model container [2021-11-19 14:55:23,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:23" (3/3) ... [2021-11-19 14:55:23,013 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2021-11-19 14:55:23,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:55:23,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 431 error locations. [2021-11-19 14:55:23,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:55:23,110 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:55:23,110 INFO L340 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2021-11-19 14:55:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 1872 states, 938 states have (on average 2.1023454157782515) internal successors, (1972), 1866 states have internal predecessors, (1972), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 14:55:23,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:23,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 14:55:23,203 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:55:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:23,217 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-11-19 14:55:23,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:23,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446708738] [2021-11-19 14:55:23,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:23,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:23,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:23,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:23,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:55:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:23,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:55:23,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:23,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:55:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:23,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:23,626 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:23,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446708738] [2021-11-19 14:55:23,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446708738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:23,628 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:23,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:55:23,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975502159] [2021-11-19 14:55:23,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:23,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:55:23,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:55:23,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:55:23,695 INFO L87 Difference]: Start difference. First operand has 1872 states, 938 states have (on average 2.1023454157782515) internal successors, (1972), 1866 states have internal predecessors, (1972), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:26,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:26,906 INFO L93 Difference]: Finished difference Result 1859 states and 2905 transitions. [2021-11-19 14:55:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:55:26,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 14:55:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:26,950 INFO L225 Difference]: With dead ends: 1859 [2021-11-19 14:55:26,950 INFO L226 Difference]: Without dead ends: 1857 [2021-11-19 14:55:26,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:55:26,956 INFO L933 BasicCegarLoop]: 2515 mSDtfsCounter, 1794 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:26,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2297 Valid, 2562 Invalid, 954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:55:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2021-11-19 14:55:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1856. [2021-11-19 14:55:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 938 states have (on average 2.0223880597014925) internal successors, (1897), 1850 states have internal predecessors, (1897), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2903 transitions. [2021-11-19 14:55:27,560 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2903 transitions. Word has length 3 [2021-11-19 14:55:27,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:27,561 INFO L470 AbstractCegarLoop]: Abstraction has 1856 states and 2903 transitions. [2021-11-19 14:55:27,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2903 transitions. [2021-11-19 14:55:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 14:55:27,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:27,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 14:55:27,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:27,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:27,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:55:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-11-19 14:55:27,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:27,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952682649] [2021-11-19 14:55:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:27,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:27,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:27,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:27,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:55:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:27,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:55:27,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:27,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:55:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:27,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:28,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:28,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952682649] [2021-11-19 14:55:28,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952682649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:28,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:28,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 14:55:28,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779451536] [2021-11-19 14:55:28,015 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:28,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:55:28,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:28,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:55:28,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:55:28,018 INFO L87 Difference]: Start difference. First operand 1856 states and 2903 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:39,301 INFO L93 Difference]: Finished difference Result 3140 states and 5211 transitions. [2021-11-19 14:55:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:55:39,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 14:55:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:39,332 INFO L225 Difference]: With dead ends: 3140 [2021-11-19 14:55:39,332 INFO L226 Difference]: Without dead ends: 3140 [2021-11-19 14:55:39,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:55:39,334 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 2747 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3747 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:39,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3747 Valid, 4847 Invalid, 2397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2021-11-19 14:55:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2021-11-19 14:55:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 1891. [2021-11-19 14:55:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 982 states have (on average 2.0122199592668024) internal successors, (1976), 1885 states have internal predecessors, (1976), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:39,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2982 transitions. [2021-11-19 14:55:39,722 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2982 transitions. Word has length 3 [2021-11-19 14:55:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:39,723 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2982 transitions. [2021-11-19 14:55:39,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:39,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2982 transitions. [2021-11-19 14:55:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:55:39,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:39,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:39,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:39,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:39,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:55:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2021-11-19 14:55:39,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:39,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957110271] [2021-11-19 14:55:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:39,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:39,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:39,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:39,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:55:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:40,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:55:40,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:40,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:55:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:40,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:40,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:40,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957110271] [2021-11-19 14:55:40,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957110271] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:40,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:40,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:55:40,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909394515] [2021-11-19 14:55:40,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:40,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:55:40,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:55:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:55:40,142 INFO L87 Difference]: Start difference. First operand 1891 states and 2982 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:43,030 INFO L93 Difference]: Finished difference Result 3058 states and 5166 transitions. [2021-11-19 14:55:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:55:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 14:55:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:43,063 INFO L225 Difference]: With dead ends: 3058 [2021-11-19 14:55:43,064 INFO L226 Difference]: Without dead ends: 3058 [2021-11-19 14:55:43,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:55:43,066 INFO L933 BasicCegarLoop]: 4657 mSDtfsCounter, 1806 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:43,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2309 Valid, 6814 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:55:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-11-19 14:55:43,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 1844. [2021-11-19 14:55:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 982 states have (on average 1.9613034623217922) internal successors, (1926), 1838 states have internal predecessors, (1926), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2932 transitions. [2021-11-19 14:55:43,524 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2932 transitions. Word has length 8 [2021-11-19 14:55:43,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:43,525 INFO L470 AbstractCegarLoop]: Abstraction has 1844 states and 2932 transitions. [2021-11-19 14:55:43,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2932 transitions. [2021-11-19 14:55:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:55:43,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:43,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:43,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:43,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:43,740 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:55:43,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2021-11-19 14:55:43,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:43,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114602097] [2021-11-19 14:55:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:43,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:43,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:43,744 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:43,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:55:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:43,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:55:43,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:43,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:55:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:43,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:44,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:44,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114602097] [2021-11-19 14:55:44,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114602097] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:44,084 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:44,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 14:55:44,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717736049] [2021-11-19 14:55:44,085 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:44,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:55:44,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:55:44,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:55:44,087 INFO L87 Difference]: Start difference. First operand 1844 states and 2932 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:52,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:52,326 INFO L93 Difference]: Finished difference Result 3090 states and 5161 transitions. [2021-11-19 14:55:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:55:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 14:55:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:52,359 INFO L225 Difference]: With dead ends: 3090 [2021-11-19 14:55:52,360 INFO L226 Difference]: Without dead ends: 3090 [2021-11-19 14:55:52,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:55:52,363 INFO L933 BasicCegarLoop]: 4819 mSDtfsCounter, 1534 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 9443 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:52,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2035 Valid, 9443 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-19 14:55:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2021-11-19 14:55:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 1834. [2021-11-19 14:55:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 982 states have (on average 1.9480651731160896) internal successors, (1913), 1828 states have internal predecessors, (1913), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2919 transitions. [2021-11-19 14:55:52,868 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2919 transitions. Word has length 8 [2021-11-19 14:55:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:52,868 INFO L470 AbstractCegarLoop]: Abstraction has 1834 states and 2919 transitions. [2021-11-19 14:55:52,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2919 transitions. [2021-11-19 14:55:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 14:55:52,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:52,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:52,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 14:55:53,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:53,083 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr429ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:55:53,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2106406943, now seen corresponding path program 1 times [2021-11-19 14:55:53,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:53,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606293360] [2021-11-19 14:55:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:53,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:53,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:53,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:53,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:55:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:53,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:55:53,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:53,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:55:53,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:55:53,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:55:53,403 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-19 14:55:53,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-19 14:55:53,487 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-19 14:55:53,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-19 14:55:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:53,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:53,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:53,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606293360] [2021-11-19 14:55:53,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606293360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:53,592 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:53,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:55:53,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135226939] [2021-11-19 14:55:53,593 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:53,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:55:53,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:53,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:55:53,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:55:53,595 INFO L87 Difference]: Start difference. First operand 1834 states and 2919 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:59,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:59,538 INFO L93 Difference]: Finished difference Result 3041 states and 5145 transitions. [2021-11-19 14:55:59,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:55:59,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 14:55:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:59,566 INFO L225 Difference]: With dead ends: 3041 [2021-11-19 14:55:59,566 INFO L226 Difference]: Without dead ends: 3041 [2021-11-19 14:55:59,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:55:59,569 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 1227 mSDsluCounter, 10960 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 14252 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:59,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1727 Valid, 14252 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-19 14:55:59,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2021-11-19 14:55:59,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 1834. [2021-11-19 14:55:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 982 states have (on average 1.9470468431771895) internal successors, (1912), 1828 states have internal predecessors, (1912), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:55:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2918 transitions. [2021-11-19 14:55:59,958 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2918 transitions. Word has length 10 [2021-11-19 14:55:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:59,958 INFO L470 AbstractCegarLoop]: Abstraction has 1834 states and 2918 transitions. [2021-11-19 14:55:59,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2918 transitions. [2021-11-19 14:55:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:55:59,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:59,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:59,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:00,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:00,174 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:00,175 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2021-11-19 14:56:00,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:00,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489545744] [2021-11-19 14:56:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:00,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:00,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:00,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:00,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:56:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:00,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:56:00,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:00,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:00,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:00,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:00,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489545744] [2021-11-19 14:56:00,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489545744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:00,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:00,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:56:00,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31341157] [2021-11-19 14:56:00,416 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:00,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:56:00,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:00,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:56:00,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:56:00,418 INFO L87 Difference]: Start difference. First operand 1834 states and 2918 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:01,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:01,631 INFO L93 Difference]: Finished difference Result 1801 states and 2884 transitions. [2021-11-19 14:56:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:56:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-19 14:56:01,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:01,646 INFO L225 Difference]: With dead ends: 1801 [2021-11-19 14:56:01,647 INFO L226 Difference]: Without dead ends: 1801 [2021-11-19 14:56:01,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:56:01,649 INFO L933 BasicCegarLoop]: 2789 mSDtfsCounter, 3536 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4039 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:01,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4039 Valid, 3316 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:56:01,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-11-19 14:56:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1792. [2021-11-19 14:56:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 964 states have (on average 1.9387966804979253) internal successors, (1869), 1786 states have internal predecessors, (1869), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:56:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2875 transitions. [2021-11-19 14:56:01,889 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2875 transitions. Word has length 18 [2021-11-19 14:56:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:01,889 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2875 transitions. [2021-11-19 14:56:01,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2875 transitions. [2021-11-19 14:56:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:56:01,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:01,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:01,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:02,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:02,105 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:02,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:02,105 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2021-11-19 14:56:02,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:02,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813305145] [2021-11-19 14:56:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:02,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:02,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:02,109 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:02,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:56:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:02,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:56:02,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:02,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:02,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:02,387 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:02,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813305145] [2021-11-19 14:56:02,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813305145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:02,388 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:02,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 14:56:02,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700856433] [2021-11-19 14:56:02,388 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:02,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:56:02,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:02,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:56:02,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:56:02,390 INFO L87 Difference]: Start difference. First operand 1792 states and 2875 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:03,476 INFO L93 Difference]: Finished difference Result 1780 states and 2856 transitions. [2021-11-19 14:56:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:56:03,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-19 14:56:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:03,492 INFO L225 Difference]: With dead ends: 1780 [2021-11-19 14:56:03,492 INFO L226 Difference]: Without dead ends: 1780 [2021-11-19 14:56:03,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:56:03,495 INFO L933 BasicCegarLoop]: 2744 mSDtfsCounter, 3468 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:03,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3971 Valid, 6008 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:56:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2021-11-19 14:56:03,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1770. [2021-11-19 14:56:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 956 states have (on average 1.9246861924686192) internal successors, (1840), 1764 states have internal predecessors, (1840), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:56:03,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2846 transitions. [2021-11-19 14:56:03,688 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2846 transitions. Word has length 20 [2021-11-19 14:56:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:03,688 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 2846 transitions. [2021-11-19 14:56:03,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2846 transitions. [2021-11-19 14:56:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 14:56:03,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:03,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:03,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-19 14:56:03,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:03,905 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:03,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531686, now seen corresponding path program 1 times [2021-11-19 14:56:03,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:03,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019346228] [2021-11-19 14:56:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:03,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:03,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:03,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:56:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:04,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:56:04,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:04,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:04,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:04,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:04,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019346228] [2021-11-19 14:56:04,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019346228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:04,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:04,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:56:04,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138333276] [2021-11-19 14:56:04,424 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:04,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:56:04,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:56:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:56:04,426 INFO L87 Difference]: Start difference. First operand 1770 states and 2846 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:09,372 INFO L93 Difference]: Finished difference Result 2992 states and 5088 transitions. [2021-11-19 14:56:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:56:09,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-19 14:56:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:09,414 INFO L225 Difference]: With dead ends: 2992 [2021-11-19 14:56:09,414 INFO L226 Difference]: Without dead ends: 2992 [2021-11-19 14:56:09,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:56:09,416 INFO L933 BasicCegarLoop]: 2888 mSDtfsCounter, 3342 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:09,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3342 Valid, 6231 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-19 14:56:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-11-19 14:56:09,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1766. [2021-11-19 14:56:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 956 states have (on average 1.9205020920502092) internal successors, (1836), 1760 states have internal predecessors, (1836), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:56:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2842 transitions. [2021-11-19 14:56:09,782 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2842 transitions. Word has length 34 [2021-11-19 14:56:09,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:09,782 INFO L470 AbstractCegarLoop]: Abstraction has 1766 states and 2842 transitions. [2021-11-19 14:56:09,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2842 transitions. [2021-11-19 14:56:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 14:56:09,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:09,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:09,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:09,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:09,999 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:10,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531687, now seen corresponding path program 1 times [2021-11-19 14:56:10,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:10,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028614450] [2021-11-19 14:56:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:10,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:10,006 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:10,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:56:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:10,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:56:10,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:10,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:10,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:11,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:11,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028614450] [2021-11-19 14:56:11,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028614450] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:11,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:11,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:56:11,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023719246] [2021-11-19 14:56:11,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:11,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:56:11,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:56:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:56:11,163 INFO L87 Difference]: Start difference. First operand 1766 states and 2842 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:21,862 INFO L93 Difference]: Finished difference Result 3030 states and 5092 transitions. [2021-11-19 14:56:21,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:56:21,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-19 14:56:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:21,884 INFO L225 Difference]: With dead ends: 3030 [2021-11-19 14:56:21,884 INFO L226 Difference]: Without dead ends: 3030 [2021-11-19 14:56:21,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:56:21,885 INFO L933 BasicCegarLoop]: 3049 mSDtfsCounter, 5662 mSDsluCounter, 3644 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 2011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5662 SdHoareTripleChecker+Valid, 6693 SdHoareTripleChecker+Invalid, 3894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2011 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:21,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5662 Valid, 6693 Invalid, 3894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2011 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2021-11-19 14:56:21,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-11-19 14:56:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 1762. [2021-11-19 14:56:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 956 states have (on average 1.9163179916317992) internal successors, (1832), 1756 states have internal predecessors, (1832), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:56:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2838 transitions. [2021-11-19 14:56:22,233 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2838 transitions. Word has length 34 [2021-11-19 14:56:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:22,234 INFO L470 AbstractCegarLoop]: Abstraction has 1762 states and 2838 transitions. [2021-11-19 14:56:22,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2838 transitions. [2021-11-19 14:56:22,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 14:56:22,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:22,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:22,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:22,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:22,455 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1723497600, now seen corresponding path program 1 times [2021-11-19 14:56:22,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:22,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269910746] [2021-11-19 14:56:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:22,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:22,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:22,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:22,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:56:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:56:22,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:22,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:22,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:22,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269910746] [2021-11-19 14:56:22,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269910746] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:22,966 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:22,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:56:22,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388238181] [2021-11-19 14:56:22,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:22,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:56:22,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:56:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:56:22,968 INFO L87 Difference]: Start difference. First operand 1762 states and 2838 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:23,069 INFO L93 Difference]: Finished difference Result 1765 states and 2837 transitions. [2021-11-19 14:56:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:56:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-19 14:56:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:23,093 INFO L225 Difference]: With dead ends: 1765 [2021-11-19 14:56:23,093 INFO L226 Difference]: Without dead ends: 1765 [2021-11-19 14:56:23,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:56:23,095 INFO L933 BasicCegarLoop]: 2738 mSDtfsCounter, 1715 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:23,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 5986 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:56:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2021-11-19 14:56:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1756. [2021-11-19 14:56:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 950 states have (on average 1.9178947368421053) internal successors, (1822), 1750 states have internal predecessors, (1822), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 14:56:23,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2828 transitions. [2021-11-19 14:56:23,302 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2828 transitions. Word has length 49 [2021-11-19 14:56:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:23,302 INFO L470 AbstractCegarLoop]: Abstraction has 1756 states and 2828 transitions. [2021-11-19 14:56:23,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2828 transitions. [2021-11-19 14:56:23,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-19 14:56:23,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:23,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:23,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:23,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:23,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2061892788, now seen corresponding path program 1 times [2021-11-19 14:56:23,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:23,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481487417] [2021-11-19 14:56:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:23,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:23,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:23,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:23,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:56:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:23,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:56:23,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:24,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:24,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:24,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481487417] [2021-11-19 14:56:24,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481487417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:24,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:24,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:56:24,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11315942] [2021-11-19 14:56:24,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:24,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:56:24,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:24,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:56:24,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:56:24,697 INFO L87 Difference]: Start difference. First operand 1756 states and 2828 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:24,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:24,905 INFO L93 Difference]: Finished difference Result 2946 states and 5030 transitions. [2021-11-19 14:56:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:56:24,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-19 14:56:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:24,918 INFO L225 Difference]: With dead ends: 2946 [2021-11-19 14:56:24,918 INFO L226 Difference]: Without dead ends: 2946 [2021-11-19 14:56:24,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:56:24,919 INFO L933 BasicCegarLoop]: 3375 mSDtfsCounter, 1219 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 6002 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:24,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1721 Valid, 6002 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:56:24,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-11-19 14:56:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2891. [2021-11-19 14:56:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 1585 states have (on average 1.905993690851735) internal successors, (3021), 2885 states have internal predecessors, (3021), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-19 14:56:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 5027 transitions. [2021-11-19 14:56:25,314 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 5027 transitions. Word has length 57 [2021-11-19 14:56:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:25,315 INFO L470 AbstractCegarLoop]: Abstraction has 2891 states and 5027 transitions. [2021-11-19 14:56:25,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 5027 transitions. [2021-11-19 14:56:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 14:56:25,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:25,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:25,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:25,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:25,532 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:25,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:25,532 INFO L85 PathProgramCache]: Analyzing trace with hash -881686959, now seen corresponding path program 1 times [2021-11-19 14:56:25,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:25,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687909607] [2021-11-19 14:56:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:25,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:25,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:25,536 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:25,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:56:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:25,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:56:25,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:25,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:25,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:26,854 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 14:56:26,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 14:56:26,874 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 14:56:26,874 INFO L388 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 27 treesize of output 23 [2021-11-19 14:56:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:26,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:32,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:32,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687909607] [2021-11-19 14:56:32,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687909607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:32,357 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:32,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:56:32,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051986393] [2021-11-19 14:56:32,358 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:32,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:56:32,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:56:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-19 14:56:32,360 INFO L87 Difference]: Start difference. First operand 2891 states and 5027 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:46,703 INFO L93 Difference]: Finished difference Result 5351 states and 9545 transitions. [2021-11-19 14:56:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:56:46,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-19 14:56:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:46,721 INFO L225 Difference]: With dead ends: 5351 [2021-11-19 14:56:46,721 INFO L226 Difference]: Without dead ends: 5351 [2021-11-19 14:56:46,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-19 14:56:46,722 INFO L933 BasicCegarLoop]: 4544 mSDtfsCounter, 3130 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 9455 SdHoareTripleChecker+Invalid, 8235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4600 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:46,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4134 Valid, 9455 Invalid, 8235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 3594 Invalid, 0 Unknown, 4600 Unchecked, 14.1s Time] [2021-11-19 14:56:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5351 states. [2021-11-19 14:56:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5351 to 2869. [2021-11-19 14:56:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 1595 states have (on average 1.8852664576802507) internal successors, (3007), 2863 states have internal predecessors, (3007), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-19 14:56:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 5013 transitions. [2021-11-19 14:56:47,394 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 5013 transitions. Word has length 60 [2021-11-19 14:56:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:47,395 INFO L470 AbstractCegarLoop]: Abstraction has 2869 states and 5013 transitions. [2021-11-19 14:56:47,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 5013 transitions. [2021-11-19 14:56:47,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 14:56:47,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:47,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:47,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:47,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:47,605 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1192602638, now seen corresponding path program 1 times [2021-11-19 14:56:47,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:47,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435589493] [2021-11-19 14:56:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:47,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:47,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:47,608 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:47,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:56:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:47,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:56:47,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:48,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:48,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-19 14:56:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:48,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:48,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435589493] [2021-11-19 14:56:48,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435589493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:48,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:48,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:56:48,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021796832] [2021-11-19 14:56:48,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:48,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:56:48,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:56:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:56:48,529 INFO L87 Difference]: Start difference. First operand 2869 states and 5013 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:54,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:54,150 INFO L93 Difference]: Finished difference Result 2867 states and 5011 transitions. [2021-11-19 14:56:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:56:54,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-19 14:56:54,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:54,166 INFO L225 Difference]: With dead ends: 2867 [2021-11-19 14:56:54,166 INFO L226 Difference]: Without dead ends: 2867 [2021-11-19 14:56:54,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:56:54,167 INFO L933 BasicCegarLoop]: 2385 mSDtfsCounter, 1696 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:54,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2199 Valid, 2929 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-19 14:56:54,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2021-11-19 14:56:54,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2867. [2021-11-19 14:56:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 1595 states have (on average 1.884012539184953) internal successors, (3005), 2861 states have internal predecessors, (3005), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-19 14:56:54,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 5011 transitions. [2021-11-19 14:56:54,655 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 5011 transitions. Word has length 62 [2021-11-19 14:56:54,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:54,656 INFO L470 AbstractCegarLoop]: Abstraction has 2867 states and 5011 transitions. [2021-11-19 14:56:54,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 5011 transitions. [2021-11-19 14:56:54,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:56:54,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:54,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:54,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:54,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:54,876 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:54,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash -855470841, now seen corresponding path program 1 times [2021-11-19 14:56:54,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:54,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339591108] [2021-11-19 14:56:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:54,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:54,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:54,879 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:54,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:56:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:55,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:56:55,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:55,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:55,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-19 14:56:55,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-19 14:56:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:55,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:55,457 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:55,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339591108] [2021-11-19 14:56:55,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339591108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:55,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:55,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:56:55,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340873843] [2021-11-19 14:56:55,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:55,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:56:55,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:56:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:56:55,461 INFO L87 Difference]: Start difference. First operand 2867 states and 5011 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:58,042 INFO L93 Difference]: Finished difference Result 2866 states and 5010 transitions. [2021-11-19 14:56:58,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:56:58,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-19 14:56:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:58,055 INFO L225 Difference]: With dead ends: 2866 [2021-11-19 14:56:58,056 INFO L226 Difference]: Without dead ends: 2866 [2021-11-19 14:56:58,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:56:58,057 INFO L933 BasicCegarLoop]: 2702 mSDtfsCounter, 4 mSDsluCounter, 7107 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:58,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9809 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 14:56:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-11-19 14:56:58,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2866. [2021-11-19 14:56:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 1595 states have (on average 1.883385579937304) internal successors, (3004), 2860 states have internal predecessors, (3004), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-19 14:56:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 5010 transitions. [2021-11-19 14:56:58,561 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 5010 transitions. Word has length 65 [2021-11-19 14:56:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:58,562 INFO L470 AbstractCegarLoop]: Abstraction has 2866 states and 5010 transitions. [2021-11-19 14:56:58,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 5010 transitions. [2021-11-19 14:56:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:56:58,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:58,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:58,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:58,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:56:58,780 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:56:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:58,781 INFO L85 PathProgramCache]: Analyzing trace with hash -855470840, now seen corresponding path program 1 times [2021-11-19 14:56:58,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:56:58,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645089367] [2021-11-19 14:56:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:58,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:56:58,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:56:58,783 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:56:58,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:56:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:59,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:56:59,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:59,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:56:59,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-19 14:56:59,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:56:59,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-19 14:56:59,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-19 14:56:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:59,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:59,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:56:59,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645089367] [2021-11-19 14:56:59,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645089367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:56:59,639 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:56:59,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 14:56:59,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446478817] [2021-11-19 14:56:59,639 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:56:59,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:56:59,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:56:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:56:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:56:59,641 INFO L87 Difference]: Start difference. First operand 2866 states and 5010 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:57:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:57:07,500 INFO L93 Difference]: Finished difference Result 2865 states and 5009 transitions. [2021-11-19 14:57:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:57:07,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-19 14:57:07,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:57:07,517 INFO L225 Difference]: With dead ends: 2865 [2021-11-19 14:57:07,517 INFO L226 Difference]: Without dead ends: 2865 [2021-11-19 14:57:07,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:57:07,519 INFO L933 BasicCegarLoop]: 2702 mSDtfsCounter, 3 mSDsluCounter, 9486 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12188 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:57:07,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 12188 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-11-19 14:57:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-11-19 14:57:07,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2865. [2021-11-19 14:57:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 1594 states have (on average 1.8839397741530741) internal successors, (3003), 2859 states have internal predecessors, (3003), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-19 14:57:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 5009 transitions. [2021-11-19 14:57:07,980 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 5009 transitions. Word has length 65 [2021-11-19 14:57:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:57:07,981 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 5009 transitions. [2021-11-19 14:57:07,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:57:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 5009 transitions. [2021-11-19 14:57:07,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:57:07,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:57:07,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:57:08,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:57:08,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:57:08,204 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:57:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:57:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2136756111, now seen corresponding path program 1 times [2021-11-19 14:57:08,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:57:08,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400135913] [2021-11-19 14:57:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:08,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:57:08,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:57:08,206 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:57:08,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:57:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:08,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:57:08,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:08,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:08,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:57:08,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400135913] [2021-11-19 14:57:08,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400135913] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:57:08,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:57:08,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:57:08,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185758200] [2021-11-19 14:57:08,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:57:08,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:57:08,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:57:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:57:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:57:08,725 INFO L87 Difference]: Start difference. First operand 2865 states and 5009 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:57:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:57:08,934 INFO L93 Difference]: Finished difference Result 2875 states and 5022 transitions. [2021-11-19 14:57:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:57:08,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-19 14:57:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:57:08,952 INFO L225 Difference]: With dead ends: 2875 [2021-11-19 14:57:08,952 INFO L226 Difference]: Without dead ends: 2875 [2021-11-19 14:57:08,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:57:08,953 INFO L933 BasicCegarLoop]: 2702 mSDtfsCounter, 7 mSDsluCounter, 10791 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13493 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:57:08,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 13493 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:57:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-11-19 14:57:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2875. [2021-11-19 14:57:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 1602 states have (on average 1.8820224719101124) internal successors, (3015), 2868 states have internal predecessors, (3015), 1003 states have call successors, (1003), 3 states have call predecessors, (1003), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-19 14:57:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5022 transitions. [2021-11-19 14:57:09,366 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5022 transitions. Word has length 73 [2021-11-19 14:57:09,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:57:09,366 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 5022 transitions. [2021-11-19 14:57:09,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:57:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5022 transitions. [2021-11-19 14:57:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-19 14:57:09,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:57:09,368 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:57:09,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-19 14:57:09,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:57:09,587 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:57:09,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:57:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1952942191, now seen corresponding path program 1 times [2021-11-19 14:57:09,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:57:09,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444471657] [2021-11-19 14:57:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:09,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:57:09,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:57:09,590 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:57:09,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:57:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:09,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:57:09,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:10,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:10,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:57:10,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444471657] [2021-11-19 14:57:10,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444471657] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:57:10,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1277664270] [2021-11-19 14:57:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:10,426 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:57:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:57:10,429 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:57:10,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-19 14:57:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:10,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:57:10,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:11,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:11,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1277664270] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:57:11,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079981721] [2021-11-19 14:57:11,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:11,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:57:11,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:57:11,323 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:57:11,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-19 14:57:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:11,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:57:11,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:11,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:12,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079981721] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:57:12,162 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:57:12,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 14:57:12,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038923852] [2021-11-19 14:57:12,163 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:57:12,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:57:12,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:57:12,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:57:12,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:57:12,165 INFO L87 Difference]: Start difference. First operand 2875 states and 5022 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:57:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:57:12,877 INFO L93 Difference]: Finished difference Result 2889 states and 5039 transitions. [2021-11-19 14:57:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:57:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-19 14:57:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:57:12,896 INFO L225 Difference]: With dead ends: 2889 [2021-11-19 14:57:12,896 INFO L226 Difference]: Without dead ends: 2883 [2021-11-19 14:57:12,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:57:12,898 INFO L933 BasicCegarLoop]: 2703 mSDtfsCounter, 29 mSDsluCounter, 18883 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21586 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:57:12,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 21586 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:57:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-11-19 14:57:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2881. [2021-11-19 14:57:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 1608 states have (on average 1.8793532338308458) internal successors, (3022), 2874 states have internal predecessors, (3022), 1003 states have call successors, (1003), 3 states have call predecessors, (1003), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-19 14:57:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5029 transitions. [2021-11-19 14:57:13,405 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5029 transitions. Word has length 75 [2021-11-19 14:57:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:57:13,405 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5029 transitions. [2021-11-19 14:57:13,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:57:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5029 transitions. [2021-11-19 14:57:13,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 14:57:13,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:57:13,407 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:57:13,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2021-11-19 14:57:13,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:57:13,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:57:14,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:57:14,018 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 14:57:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:57:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -326381009, now seen corresponding path program 2 times [2021-11-19 14:57:14,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:57:14,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206557533] [2021-11-19 14:57:14,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:57:14,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:57:14,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:57:14,022 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:57:14,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:57:14,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:57:14,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:57:14,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:57:14,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:14,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:15,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:57:15,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206557533] [2021-11-19 14:57:15,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206557533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:57:15,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [989005366] [2021-11-19 14:57:15,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:57:15,486 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:57:15,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:57:15,488 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:57:15,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-19 14:57:16,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:57:16,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:57:16,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:57:16,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:16,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:57:16,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [989005366] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:57:16,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972674349] [2021-11-19 14:57:16,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:57:16,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:57:16,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:57:16,931 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:57:16,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-19 14:57:49,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:57:49,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:57:49,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:57:49,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:49,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:57:49,432 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:57:49,432 INFO L388 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 13 [2021-11-19 14:57:49,441 INFO L388 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 [2021-11-19 14:57:49,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:57:49,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-19 14:57:49,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-19 14:57:49,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-19 15:00:06,280 WARN L227 SmtUtils]: Spent 24.45s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 15:00:06,281 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 15:00:06,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 135 [2021-11-19 15:00:16,883 WARN L227 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 118 DAG size of output: 38 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 15:00:16,884 INFO L354 Elim1Store]: treesize reduction 1178, result has 7.5 percent of original size [2021-11-19 15:00:16,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 226 [2021-11-19 15:00:26,345 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 15:00:26,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 241 treesize of output 118 [2021-11-19 15:00:26,368 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 15:00:26,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 46 [2021-11-19 15:00:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 14 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:00:38,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:00:51,394 WARN L227 SmtUtils]: Spent 12.32s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-19 15:01:10,513 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (let ((.cse1 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse1))) (let ((.cse0 (bvadd .cse2 (_ bv20 32)))) (and (bvule .cse0 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse1))) (bvule (bvadd (_ bv16 32) .cse2) .cse0))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse3 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse8 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse9 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse10 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse3 .cse4) .cse5 .cse4) .cse6 .cse4) .cse7 .cse4) .cse8 .cse4) .cse9 .cse4))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse10) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse3 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse10)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse11 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse12))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse11) (bvadd .cse11 (_ bv20 32)))))))) is different from false [2021-11-19 15:02:14,024 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse13 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse10 .cse11) .cse12 .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse13) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse13))))) (forall ((|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_2 (_ BitVec 32))) (let ((.cse14 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|) .cse15) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse15))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse14) (bvadd (_ bv20 32) .cse14))))))) is different from true [2021-11-19 15:02:18,739 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_2 (_ BitVec 32))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse10) (bvadd .cse10 (_ bv20 32))))) (forall ((v_subst_4 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16)))))))) is different from true [2021-11-19 15:02:24,651 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (and (forall ((v_subst_5 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_2 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|) .cse1) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse1) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse1) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse8 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse10 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse11 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse12 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse15 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 .cse9) .cse10 .cse9) .cse11 .cse9) .cse12 .cse9) .cse13 .cse9) .cse14 .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse16 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse17))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse16) (bvadd .cse16 (_ bv20 32)))))))) is different from false [2021-11-19 15:02:31,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((v_subst_5 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse11) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse10) (bvadd (_ bv20 32) .cse10)))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse16 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse17 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse18 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)))))))) is different from false [2021-11-19 15:02:40,751 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (and (forall ((v_subst_5 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|) .cse1) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse1) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7) .cse1) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse1) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse1) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr192| (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse2 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr192|)) (.cse4 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse5 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8)) (.cse6 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse7 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse8 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse9 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3) .cse8 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse10 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse12 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse10 .cse11) .cse12 .cse11) .cse13 .cse11) .cse14 .cse11) .cse15 .cse11) .cse16 .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse17) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse17)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr192_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr192_108| (_ BitVec 32))) (not (let ((.cse18 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_105| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19) (bvadd |v_#Ultimate.C_memset_#t~loopctr192_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse19))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse18) (bvadd .cse18 (_ bv20 32)))))))) is different from true [2021-11-19 15:03:18,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 15:03:18,847 INFO L186 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2021-11-19 15:03:18,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2021-11-19 15:03:18,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813545823] [2021-11-19 15:03:18,848 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2021-11-19 15:03:18,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:03:18,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:18,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:03:18,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1036, Unknown=81, NotChecked=438, Total=1722 [2021-11-19 15:03:18,850 INFO L87 Difference]: Start difference. First operand 2881 states and 5029 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:03:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:34,066 INFO L93 Difference]: Finished difference Result 2907 states and 5065 transitions. [2021-11-19 15:03:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 15:03:34,067 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2021-11-19 15:03:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:34,080 INFO L225 Difference]: With dead ends: 2907 [2021-11-19 15:03:34,080 INFO L226 Difference]: Without dead ends: 2903 [2021-11-19 15:03:34,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 247.6s TimeCoverageRelationStatistics Valid=508, Invalid=2402, Unknown=84, NotChecked=666, Total=3660 [2021-11-19 15:03:34,084 INFO L933 BasicCegarLoop]: 2707 mSDtfsCounter, 84 mSDsluCounter, 18925 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 21632 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:34,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 21632 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 15:03:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-11-19 15:03:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2893. [2021-11-19 15:03:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 1620 states have (on average 1.8753086419753087) internal successors, (3038), 2886 states have internal predecessors, (3038), 1003 states have call successors, (1003), 3 states have call predecessors, (1003), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-19 15:03:34,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 5045 transitions. [2021-11-19 15:03:34,466 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 5045 transitions. Word has length 79 [2021-11-19 15:03:34,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:34,467 INFO L470 AbstractCegarLoop]: Abstraction has 2893 states and 5045 transitions. [2021-11-19 15:03:34,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:03:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 5045 transitions. [2021-11-19 15:03:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-19 15:03:34,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:34,469 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:34,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:34,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:34,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:35,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:03:35,083 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 427 more)] === [2021-11-19 15:03:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:35,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1928084049, now seen corresponding path program 3 times [2021-11-19 15:03:35,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:35,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671279988] [2021-11-19 15:03:35,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 15:03:35,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:35,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:35,087 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:35,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 15:03:35,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 15:03:35,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:03:35,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 15:03:35,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:03:36,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:03:38,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:38,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671279988] [2021-11-19 15:03:38,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671279988] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:03:38,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [181806093] [2021-11-19 15:03:38,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 15:03:38,498 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:03:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:03:38,499 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:03:38,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-19 15:03:40,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 15:03:40,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:03:40,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 15:03:40,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:03:40,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:03:41,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [181806093] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:03:41,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295682559] [2021-11-19 15:03:41,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 15:03:41,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:03:41,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:03:41,571 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:03:41,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe70db-f291-4a45-860c-7376316199df/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process