./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P --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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:16:44,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:16:44,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:16:44,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:16:44,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:16:44,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:16:44,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:16:44,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:16:44,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:16:44,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:16:44,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:16:44,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:16:44,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:16:44,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:16:44,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:16:44,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:16:44,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:16:44,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:16:44,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:16:44,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:16:44,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:16:44,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:16:44,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:16:44,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:16:44,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:16:44,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:16:44,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:16:44,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:16:44,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:16:44,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:16:44,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:16:44,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:16:44,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:16:44,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:16:44,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:16:44,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:16:44,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:16:44,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:16:44,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:16:44,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:16:44,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:16:44,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:16:44,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:16:44,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:16:44,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:16:44,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:16:44,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:16:44,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:16:44,154 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:16:44,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:16:44,154 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:16:44,155 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:16:44,155 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:16:44,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:16:44,155 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:16:44,155 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:16:44,156 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:16:44,156 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:16:44,156 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:16:44,156 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:16:44,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:16:44,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:16:44,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:16:44,158 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:16:44,159 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:16:44,159 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:16:44,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:16:44,159 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:16:44,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:16:44,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:16:44,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:16:44,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:16:44,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:44,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:16:44,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:16:44,161 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:16:44,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:16:44,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:16:44,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:16:44,162 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2021-11-21 00:16:44,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:16:44,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:16:44,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:16:44,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:16:44,428 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:16:44,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-21 00:16:44,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/85e9f29f5/a956e64bb9614f3bb7448f6d92c5970e/FLAGc2127a5b7 [2021-11-21 00:16:45,203 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:16:45,203 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-21 00:16:45,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/85e9f29f5/a956e64bb9614f3bb7448f6d92c5970e/FLAGc2127a5b7 [2021-11-21 00:16:45,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/85e9f29f5/a956e64bb9614f3bb7448f6d92c5970e [2021-11-21 00:16:45,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:16:45,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:16:45,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:45,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:16:45,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:16:45,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:45" (1/1) ... [2021-11-21 00:16:45,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc55658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:45, skipping insertion in model container [2021-11-21 00:16:45,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:45" (1/1) ... [2021-11-21 00:16:45,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:16:45,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:16:46,039 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-21 00:16:46,050 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-21 00:16:46,136 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-21 00:16:46,145 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-21 00:16:46,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:46,163 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) [2021-11-21 00:16:46,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d0e05e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:46, skipping insertion in model container [2021-11-21 00:16:46,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:46,179 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:16:46,181 INFO L158 Benchmark]: Toolchain (without parser) took 790.11ms. Allocated memory is still 136.3MB. Free memory was 94.6MB in the beginning and 98.2MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:16:46,181 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory was 106.0MB in the beginning and 105.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:16:46,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.64ms. Allocated memory is still 136.3MB. Free memory was 94.4MB in the beginning and 98.2MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:16:46,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory was 106.0MB in the beginning and 105.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.64ms. Allocated memory is still 136.3MB. Free memory was 94.4MB in the beginning and 98.2MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P --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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:16:48,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:16:48,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:16:48,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:16:48,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:16:48,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:16:48,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:16:48,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:16:48,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:16:48,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:16:48,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:16:48,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:16:48,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:16:48,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:16:48,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:16:48,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:16:48,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:16:48,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:16:48,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:16:48,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:16:48,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:16:48,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:16:48,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:16:48,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:16:48,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:16:48,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:16:48,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:16:48,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:16:48,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:16:48,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:16:48,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:16:48,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:16:48,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:16:48,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:16:48,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:16:48,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:16:48,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:16:48,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:16:48,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:16:48,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:16:48,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:16:48,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:16:48,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:16:48,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:16:48,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:16:48,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:16:48,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:16:48,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:16:48,543 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:16:48,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:16:48,543 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:16:48,543 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:16:48,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:16:48,545 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:16:48,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:16:48,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:16:48,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:16:48,547 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:16:48,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:16:48,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:16:48,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:16:48,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:16:48,548 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:16:48,548 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:16:48,548 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:16:48,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:16:48,549 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:16:48,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:16:48,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:16:48,550 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:16:48,550 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:16:48,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:16:48,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:16:48,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:16:48,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:48,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:16:48,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:16:48,552 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:16:48,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:16:48,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:16:48,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:16:48,560 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2021-11-21 00:16:48,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:16:48,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:16:48,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:16:48,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:16:48,988 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:16:48,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-21 00:16:49,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/8cd0aeea1/00a83296fe45402186332ceb344c0f07/FLAG5d396992b [2021-11-21 00:16:49,720 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:16:49,721 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-21 00:16:49,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/8cd0aeea1/00a83296fe45402186332ceb344c0f07/FLAG5d396992b [2021-11-21 00:16:49,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/data/8cd0aeea1/00a83296fe45402186332ceb344c0f07 [2021-11-21 00:16:49,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:16:49,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:16:49,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:49,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:16:49,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:16:49,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:49" (1/1) ... [2021-11-21 00:16:49,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577417e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:49, skipping insertion in model container [2021-11-21 00:16:49,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:49" (1/1) ... [2021-11-21 00:16:49,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:16:50,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:16:50,615 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-21 00:16:50,626 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-21 00:16:50,755 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-21 00:16:50,758 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-21 00:16:50,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:50,788 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:16:50,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:16:50,863 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-21 00:16:50,865 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-21 00:16:50,957 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-21 00:16:50,958 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-21 00:16:50,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:50,968 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:16:51,040 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-21 00:16:51,042 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-21 00:16:51,175 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-21 00:16:51,188 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_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-21 00:16:51,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:51,276 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:16:51,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51 WrapperNode [2021-11-21 00:16:51,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:51,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:51,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:16:51,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:16:51,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,414 INFO L137 Inliner]: procedures = 285, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1042 [2021-11-21 00:16:51,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:51,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:16:51,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:16:51,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:16:51,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:16:51,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:16:51,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:16:51,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:16:51,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (1/1) ... [2021-11-21 00:16:51,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:51,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:16:51,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:16:51,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:16:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 00:16:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:16:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:16:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:16:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:16:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:16:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:16:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:16:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 00:16:51,685 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 00:16:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:16:51,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:16:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:16:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:16:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 00:16:51,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 00:16:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:16:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 00:16:51,723 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 00:16:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:16:51,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:16:52,007 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:16:52,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:16:56,821 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:16:56,849 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:16:56,849 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 00:16:56,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:56 BoogieIcfgContainer [2021-11-21 00:16:56,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:16:56,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:16:56,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:16:56,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:16:56,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:16:49" (1/3) ... [2021-11-21 00:16:56,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f455502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:56, skipping insertion in model container [2021-11-21 00:16:56,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:51" (2/3) ... [2021-11-21 00:16:56,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f455502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:56, skipping insertion in model container [2021-11-21 00:16:56,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:56" (3/3) ... [2021-11-21 00:16:56,862 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2021-11-21 00:16:56,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:16:56,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2021-11-21 00:16:56,927 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:16:56,935 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 [2021-11-21 00:16:56,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2021-11-21 00:16:56,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 534 states have (on average 2.2284644194756553) internal successors, (1190), 1065 states have internal predecessors, (1190), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 00:16:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:16:56,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:56,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:16:56,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:16:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash 77521, now seen corresponding path program 1 times [2021-11-21 00:16:56,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:16:56,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136244919] [2021-11-21 00:16:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:56,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:16:56,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:16:56,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:16:57,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:16:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:57,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:16:57,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:16:57,289 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 [2021-11-21 00:16:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:16:57,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:16:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:16:57,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:16:57,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136244919] [2021-11-21 00:16:57,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136244919] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:57,359 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:57,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:16:57,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403627168] [2021-11-21 00:16:57,361 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:57,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:57,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:16:57,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:57,397 INFO L87 Difference]: Start difference. First operand has 1083 states, 534 states have (on average 2.2284644194756553) internal successors, (1190), 1065 states have internal predecessors, (1190), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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) [2021-11-21 00:16:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:59,511 INFO L93 Difference]: Finished difference Result 1162 states and 1229 transitions. [2021-11-21 00:16:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:16:59,513 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 [2021-11-21 00:16:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:59,534 INFO L225 Difference]: With dead ends: 1162 [2021-11-21 00:16:59,534 INFO L226 Difference]: Without dead ends: 1160 [2021-11-21 00:16:59,536 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 [2021-11-21 00:16:59,539 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 714 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:59,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 1044 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 00:16:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2021-11-21 00:16:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1103. [2021-11-21 00:16:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 568 states have (on average 2.084507042253521) internal successors, (1184), 1086 states have internal predecessors, (1184), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:16:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1210 transitions. [2021-11-21 00:16:59,640 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1210 transitions. Word has length 3 [2021-11-21 00:16:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:59,641 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1210 transitions. [2021-11-21 00:16:59,641 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) [2021-11-21 00:16:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1210 transitions. [2021-11-21 00:16:59,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:16:59,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:59,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:16:59,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-21 00:16:59,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:16:59,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:16:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash 77522, now seen corresponding path program 1 times [2021-11-21 00:16:59,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:16:59,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597294395] [2021-11-21 00:16:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:59,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:16:59,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:16:59,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:16:59,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:16:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:59,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:16:59,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:00,005 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 [2021-11-21 00:17:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:00,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:00,077 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:00,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597294395] [2021-11-21 00:17:00,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597294395] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:00,078 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:00,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:17:00,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672269320] [2021-11-21 00:17:00,079 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:00,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:00,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:00,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:00,081 INFO L87 Difference]: Start difference. First operand 1103 states and 1210 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) [2021-11-21 00:17:04,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:04,450 INFO L93 Difference]: Finished difference Result 1533 states and 1633 transitions. [2021-11-21 00:17:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:04,450 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 [2021-11-21 00:17:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:04,459 INFO L225 Difference]: With dead ends: 1533 [2021-11-21 00:17:04,459 INFO L226 Difference]: Without dead ends: 1533 [2021-11-21 00:17:04,460 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 [2021-11-21 00:17:04,461 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 1124 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:04,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 1632 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-21 00:17:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-11-21 00:17:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1099. [2021-11-21 00:17:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 573 states have (on average 2.0593368237347294) internal successors, (1180), 1082 states have internal predecessors, (1180), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1206 transitions. [2021-11-21 00:17:04,500 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1206 transitions. Word has length 3 [2021-11-21 00:17:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:04,501 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 1206 transitions. [2021-11-21 00:17:04,501 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) [2021-11-21 00:17:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1206 transitions. [2021-11-21 00:17:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:17:04,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:04,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:04,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:04,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:04,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:04,735 INFO L85 PathProgramCache]: Analyzing trace with hash -102759776, now seen corresponding path program 1 times [2021-11-21 00:17:04,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:04,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634182748] [2021-11-21 00:17:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:04,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:04,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:04,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:04,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:17:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:04,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:04,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:04,885 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 [2021-11-21 00:17:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:04,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:04,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634182748] [2021-11-21 00:17:04,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634182748] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:04,953 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:04,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:17:04,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323423115] [2021-11-21 00:17:04,953 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:04,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:04,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:04,955 INFO L87 Difference]: Start difference. First operand 1099 states and 1206 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-21 00:17:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:08,533 INFO L93 Difference]: Finished difference Result 1871 states and 2002 transitions. [2021-11-21 00:17:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:08,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-21 00:17:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:08,547 INFO L225 Difference]: With dead ends: 1871 [2021-11-21 00:17:08,548 INFO L226 Difference]: Without dead ends: 1871 [2021-11-21 00:17:08,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:08,550 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 2128 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:08,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2134 Valid, 1948 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:17:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-11-21 00:17:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1054. [2021-11-21 00:17:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 573 states have (on average 1.975567190226876) internal successors, (1132), 1037 states have internal predecessors, (1132), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1158 transitions. [2021-11-21 00:17:08,594 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1158 transitions. Word has length 9 [2021-11-21 00:17:08,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:08,595 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1158 transitions. [2021-11-21 00:17:08,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-21 00:17:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1158 transitions. [2021-11-21 00:17:08,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:17:08,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:08,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:08,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:08,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:08,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:08,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:08,815 INFO L85 PathProgramCache]: Analyzing trace with hash -102759775, now seen corresponding path program 1 times [2021-11-21 00:17:08,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:08,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523669290] [2021-11-21 00:17:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:08,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:08,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:08,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:08,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:17:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:08,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:17:08,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:08,973 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 [2021-11-21 00:17:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:09,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:09,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523669290] [2021-11-21 00:17:09,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523669290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:09,180 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:09,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:17:09,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271113019] [2021-11-21 00:17:09,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:09,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:17:09,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:17:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:09,181 INFO L87 Difference]: Start difference. First operand 1054 states and 1158 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-21 00:17:17,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:17,513 INFO L93 Difference]: Finished difference Result 1486 states and 1587 transitions. [2021-11-21 00:17:17,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:17,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 9 [2021-11-21 00:17:17,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:17,522 INFO L225 Difference]: With dead ends: 1486 [2021-11-21 00:17:17,523 INFO L226 Difference]: Without dead ends: 1486 [2021-11-21 00:17:17,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:17,525 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 2041 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:17,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 2539 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 00:17:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2021-11-21 00:17:17,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1044. [2021-11-21 00:17:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 573 states have (on average 1.9528795811518325) internal successors, (1119), 1027 states have internal predecessors, (1119), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1145 transitions. [2021-11-21 00:17:17,557 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1145 transitions. Word has length 9 [2021-11-21 00:17:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:17,558 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 1145 transitions. [2021-11-21 00:17:17,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-21 00:17:17,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1145 transitions. [2021-11-21 00:17:17,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:17:17,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:17,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:17,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-21 00:17:17,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:17,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr516ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:17,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -856298529, now seen corresponding path program 1 times [2021-11-21 00:17:17,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:17,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792502452] [2021-11-21 00:17:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:17,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:17,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:17,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:17:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:17,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:17:17,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:17,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:18,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:18,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792502452] [2021-11-21 00:17:18,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792502452] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:18,053 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:18,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:17:18,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633523620] [2021-11-21 00:17:18,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:18,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:18,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:18,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:18,055 INFO L87 Difference]: Start difference. First operand 1044 states and 1145 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-21 00:17:18,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:18,867 INFO L93 Difference]: Finished difference Result 1494 states and 1632 transitions. [2021-11-21 00:17:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:18,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-11-21 00:17:18,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:18,876 INFO L225 Difference]: With dead ends: 1494 [2021-11-21 00:17:18,876 INFO L226 Difference]: Without dead ends: 1494 [2021-11-21 00:17:18,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:18,878 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 543 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:18,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 3092 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-21 00:17:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2021-11-21 00:17:18,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1283. [2021-11-21 00:17:18,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 812 states have (on average 1.935960591133005) internal successors, (1572), 1266 states have internal predecessors, (1572), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1598 transitions. [2021-11-21 00:17:18,918 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1598 transitions. Word has length 11 [2021-11-21 00:17:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:18,918 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1598 transitions. [2021-11-21 00:17:18,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-21 00:17:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1598 transitions. [2021-11-21 00:17:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 00:17:18,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:18,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:18,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:19,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:19,133 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:19,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:19,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2117571646, now seen corresponding path program 1 times [2021-11-21 00:17:19,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:19,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126942277] [2021-11-21 00:17:19,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:19,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:19,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:19,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:19,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:17:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:19,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:19,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:19,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:17:19,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:17:19,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:17:19,436 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-21 00:17:19,436 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 [2021-11-21 00:17:19,499 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-21 00:17:19,499 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 [2021-11-21 00:17:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:19,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:19,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126942277] [2021-11-21 00:17:19,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126942277] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:19,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:19,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:17:19,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54311809] [2021-11-21 00:17:19,617 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:19,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:17:19,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:17:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:19,619 INFO L87 Difference]: Start difference. First operand 1283 states and 1598 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:21,938 INFO L93 Difference]: Finished difference Result 1643 states and 2022 transitions. [2021-11-21 00:17:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-21 00:17:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:21,948 INFO L225 Difference]: With dead ends: 1643 [2021-11-21 00:17:21,948 INFO L226 Difference]: Without dead ends: 1643 [2021-11-21 00:17:21,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:17:21,950 INFO L933 BasicCegarLoop]: 1033 mSDtfsCounter, 354 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:21,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 3862 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 00:17:21,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2021-11-21 00:17:21,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1282. [2021-11-21 00:17:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 811 states have (on average 1.935881627620222) internal successors, (1570), 1265 states have internal predecessors, (1570), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1596 transitions. [2021-11-21 00:17:21,990 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1596 transitions. Word has length 14 [2021-11-21 00:17:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:21,990 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 1596 transitions. [2021-11-21 00:17:21,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1596 transitions. [2021-11-21 00:17:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 00:17:21,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:21,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:22,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:22,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:22,205 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:22,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:22,206 INFO L85 PathProgramCache]: Analyzing trace with hash 769788685, now seen corresponding path program 1 times [2021-11-21 00:17:22,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:22,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992740370] [2021-11-21 00:17:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:22,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:22,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:22,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:17:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:22,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:17:22,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:22,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:22,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:22,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992740370] [2021-11-21 00:17:22,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992740370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:22,481 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:22,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:17:22,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377856590] [2021-11-21 00:17:22,482 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:22,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:22,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:22,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:22,483 INFO L87 Difference]: Start difference. First operand 1282 states and 1596 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-21 00:17:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:22,514 INFO L93 Difference]: Finished difference Result 1222 states and 1510 transitions. [2021-11-21 00:17:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:22,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19 [2021-11-21 00:17:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:22,522 INFO L225 Difference]: With dead ends: 1222 [2021-11-21 00:17:22,523 INFO L226 Difference]: Without dead ends: 1222 [2021-11-21 00:17:22,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:22,524 INFO L933 BasicCegarLoop]: 1021 mSDtfsCounter, 951 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:22,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 1155 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:17:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-21 00:17:22,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-21 00:17:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 775 states have (on average 1.9148387096774193) internal successors, (1484), 1205 states have internal predecessors, (1484), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1510 transitions. [2021-11-21 00:17:22,562 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1510 transitions. Word has length 19 [2021-11-21 00:17:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:22,562 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1510 transitions. [2021-11-21 00:17:22,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-21 00:17:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1510 transitions. [2021-11-21 00:17:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 00:17:22,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:22,564 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] [2021-11-21 00:17:22,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:22,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:22,804 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:22,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:22,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1032548102, now seen corresponding path program 1 times [2021-11-21 00:17:22,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:22,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895422584] [2021-11-21 00:17:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:22,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:22,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:22,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:22,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 00:17:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:22,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:22,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:23,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:23,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:23,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895422584] [2021-11-21 00:17:23,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895422584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:23,090 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:23,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:17:23,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224188843] [2021-11-21 00:17:23,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:23,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:17:23,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:23,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:17:23,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:23,092 INFO L87 Difference]: Start difference. First operand 1222 states and 1510 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:23,160 INFO L93 Difference]: Finished difference Result 1194 states and 1454 transitions. [2021-11-21 00:17:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:23,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-21 00:17:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:23,167 INFO L225 Difference]: With dead ends: 1194 [2021-11-21 00:17:23,168 INFO L226 Difference]: Without dead ends: 1194 [2021-11-21 00:17:23,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:23,169 INFO L933 BasicCegarLoop]: 976 mSDtfsCounter, 922 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:23,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 2079 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:17:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-11-21 00:17:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1192. [2021-11-21 00:17:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 759 states have (on average 1.878787878787879) internal successors, (1426), 1175 states have internal predecessors, (1426), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1452 transitions. [2021-11-21 00:17:23,197 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1452 transitions. Word has length 21 [2021-11-21 00:17:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:23,198 INFO L470 AbstractCegarLoop]: Abstraction has 1192 states and 1452 transitions. [2021-11-21 00:17:23,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1452 transitions. [2021-11-21 00:17:23,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 00:17:23,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:23,199 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] [2021-11-21 00:17:23,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:23,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:23,413 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:23,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308372, now seen corresponding path program 1 times [2021-11-21 00:17:23,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:23,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530831745] [2021-11-21 00:17:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:23,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:23,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:23,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:23,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 00:17:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:23,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:17:23,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:23,598 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 [2021-11-21 00:17:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:23,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:23,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:23,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530831745] [2021-11-21 00:17:23,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530831745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:23,875 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:23,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:17:23,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704644758] [2021-11-21 00:17:23,876 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:23,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:17:23,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:23,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:17:23,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:23,877 INFO L87 Difference]: Start difference. First operand 1192 states and 1452 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-21 00:17:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:27,252 INFO L93 Difference]: Finished difference Result 2165 states and 2643 transitions. [2021-11-21 00:17:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:17:27,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-11-21 00:17:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:27,262 INFO L225 Difference]: With dead ends: 2165 [2021-11-21 00:17:27,262 INFO L226 Difference]: Without dead ends: 2165 [2021-11-21 00:17:27,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:27,263 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 2017 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:27,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2020 Valid, 1988 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-21 00:17:27,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2021-11-21 00:17:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1188. [2021-11-21 00:17:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 759 states have (on average 1.8682476943346509) internal successors, (1418), 1171 states have internal predecessors, (1418), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1444 transitions. [2021-11-21 00:17:27,296 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1444 transitions. Word has length 35 [2021-11-21 00:17:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:27,297 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1444 transitions. [2021-11-21 00:17:27,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-21 00:17:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1444 transitions. [2021-11-21 00:17:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 00:17:27,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:27,299 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] [2021-11-21 00:17:27,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:27,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:27,510 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:27,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:27,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308373, now seen corresponding path program 1 times [2021-11-21 00:17:27,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964812012] [2021-11-21 00:17:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:27,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:27,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:27,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:27,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 00:17:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:27,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:17:27,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:27,690 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 [2021-11-21 00:17:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:27,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:28,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:28,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964812012] [2021-11-21 00:17:28,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964812012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:28,585 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:28,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 00:17:28,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594911527] [2021-11-21 00:17:28,586 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:28,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:17:28,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:17:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:28,587 INFO L87 Difference]: Start difference. First operand 1188 states and 1444 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-11-21 00:17:38,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:38,260 INFO L93 Difference]: Finished difference Result 1795 states and 2203 transitions. [2021-11-21 00:17:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:17:38,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 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 35 [2021-11-21 00:17:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:38,269 INFO L225 Difference]: With dead ends: 1795 [2021-11-21 00:17:38,269 INFO L226 Difference]: Without dead ends: 1795 [2021-11-21 00:17:38,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:17:38,270 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 1770 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:38,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1770 Valid, 3956 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-11-21 00:17:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-21 00:17:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1184. [2021-11-21 00:17:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 759 states have (on average 1.8577075098814229) internal successors, (1410), 1167 states have internal predecessors, (1410), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1436 transitions. [2021-11-21 00:17:38,297 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1436 transitions. Word has length 35 [2021-11-21 00:17:38,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:38,298 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 1436 transitions. [2021-11-21 00:17:38,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-11-21 00:17:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1436 transitions. [2021-11-21 00:17:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-21 00:17:38,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:38,300 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] [2021-11-21 00:17:38,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-21 00:17:38,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:38,512 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:38,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:38,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2063927218, now seen corresponding path program 1 times [2021-11-21 00:17:38,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:38,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477296486] [2021-11-21 00:17:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:38,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:38,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:38,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 00:17:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:38,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:38,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:38,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:38,947 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:38,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477296486] [2021-11-21 00:17:38,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477296486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:38,947 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:38,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:17:38,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426334590] [2021-11-21 00:17:38,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:38,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:38,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:38,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:38,950 INFO L87 Difference]: Start difference. First operand 1184 states and 1436 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:39,027 INFO L93 Difference]: Finished difference Result 1172 states and 1416 transitions. [2021-11-21 00:17:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-21 00:17:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:39,034 INFO L225 Difference]: With dead ends: 1172 [2021-11-21 00:17:39,034 INFO L226 Difference]: Without dead ends: 1172 [2021-11-21 00:17:39,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:39,036 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 898 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:39,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 1990 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:17:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-11-21 00:17:39,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2021-11-21 00:17:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 747 states have (on average 1.8607764390896921) internal successors, (1390), 1155 states have internal predecessors, (1390), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1416 transitions. [2021-11-21 00:17:39,066 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1416 transitions. Word has length 54 [2021-11-21 00:17:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:39,067 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1416 transitions. [2021-11-21 00:17:39,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1416 transitions. [2021-11-21 00:17:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:17:39,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:39,070 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] [2021-11-21 00:17:39,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:39,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:39,283 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:39,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash -203140862, now seen corresponding path program 1 times [2021-11-21 00:17:39,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:39,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288400096] [2021-11-21 00:17:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:39,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:39,287 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:39,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 00:17:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:39,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:17:39,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:39,694 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-21 00:17:39,694 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 16 treesize of output 21 [2021-11-21 00:17:39,817 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-21 00:17:39,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 44 [2021-11-21 00:17:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:40,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:40,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288400096] [2021-11-21 00:17:40,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288400096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:40,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:40,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-21 00:17:40,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388166689] [2021-11-21 00:17:40,777 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:40,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:17:40,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:17:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:40,778 INFO L87 Difference]: Start difference. First operand 1172 states and 1416 transitions. Second operand has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:43,113 INFO L93 Difference]: Finished difference Result 1512 states and 1775 transitions. [2021-11-21 00:17:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:17:43,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-21 00:17:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:43,122 INFO L225 Difference]: With dead ends: 1512 [2021-11-21 00:17:43,122 INFO L226 Difference]: Without dead ends: 1512 [2021-11-21 00:17:43,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:43,124 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 419 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 806 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:43,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1991 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 764 Invalid, 0 Unknown, 806 Unchecked, 2.3s Time] [2021-11-21 00:17:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2021-11-21 00:17:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1189. [2021-11-21 00:17:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 760 states have (on average 1.85) internal successors, (1406), 1169 states have internal predecessors, (1406), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (18), 13 states have call predecessors, (18), 14 states have call successors, (18) [2021-11-21 00:17:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1438 transitions. [2021-11-21 00:17:43,165 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1438 transitions. Word has length 62 [2021-11-21 00:17:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:43,166 INFO L470 AbstractCegarLoop]: Abstraction has 1189 states and 1438 transitions. [2021-11-21 00:17:43,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1438 transitions. [2021-11-21 00:17:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:17:43,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:43,171 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] [2021-11-21 00:17:43,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:43,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:43,385 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:43,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:43,386 INFO L85 PathProgramCache]: Analyzing trace with hash -203140861, now seen corresponding path program 1 times [2021-11-21 00:17:43,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:43,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628681312] [2021-11-21 00:17:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:43,387 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:43,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:43,388 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:43,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 00:17:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:43,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-21 00:17:43,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:43,810 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:17:43,811 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 27 treesize of output 29 [2021-11-21 00:17:43,818 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:17:43,818 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 26 treesize of output 22 [2021-11-21 00:17:43,955 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 00:17:43,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 00:17:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:49,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:51,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:51,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628681312] [2021-11-21 00:17:51,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628681312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:51,537 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:51,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 9 [2021-11-21 00:17:51,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820225948] [2021-11-21 00:17:51,537 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:51,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 00:17:51,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:51,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 00:17:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:17:51,539 INFO L87 Difference]: Start difference. First operand 1189 states and 1438 transitions. Second operand has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:53,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:53,352 INFO L93 Difference]: Finished difference Result 1189 states and 1437 transitions. [2021-11-21 00:17:53,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:17:53,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-21 00:17:53,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:53,358 INFO L225 Difference]: With dead ends: 1189 [2021-11-21 00:17:53,358 INFO L226 Difference]: Without dead ends: 1189 [2021-11-21 00:17:53,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:17:53,359 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 78 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 4614 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2443 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:53,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 4614 Invalid, 3077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 633 Invalid, 0 Unknown, 2443 Unchecked, 1.7s Time] [2021-11-21 00:17:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2021-11-21 00:17:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1189. [2021-11-21 00:17:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 760 states have (on average 1.8486842105263157) internal successors, (1405), 1169 states have internal predecessors, (1405), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (18), 13 states have call predecessors, (18), 14 states have call successors, (18) [2021-11-21 00:17:53,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1437 transitions. [2021-11-21 00:17:53,390 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1437 transitions. Word has length 62 [2021-11-21 00:17:53,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:53,391 INFO L470 AbstractCegarLoop]: Abstraction has 1189 states and 1437 transitions. [2021-11-21 00:17:53,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1437 transitions. [2021-11-21 00:17:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 00:17:53,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:53,392 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] [2021-11-21 00:17:53,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:53,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:53,606 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:53,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1864793253, now seen corresponding path program 1 times [2021-11-21 00:17:53,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:53,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654596105] [2021-11-21 00:17:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:53,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:53,609 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:53,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 00:17:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:53,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:17:53,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:53,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:54,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:54,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:54,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654596105] [2021-11-21 00:17:54,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654596105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:54,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:54,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-21 00:17:54,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123918357] [2021-11-21 00:17:54,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:54,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:17:54,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:54,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:17:54,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:54,096 INFO L87 Difference]: Start difference. First operand 1189 states and 1437 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:54,227 INFO L93 Difference]: Finished difference Result 1206 states and 1453 transitions. [2021-11-21 00:17:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:17:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-21 00:17:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:54,232 INFO L225 Difference]: With dead ends: 1206 [2021-11-21 00:17:54,232 INFO L226 Difference]: Without dead ends: 1206 [2021-11-21 00:17:54,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:17:54,233 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 22 mSDsluCounter, 4828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5796 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:54,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 5796 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:17:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2021-11-21 00:17:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1201. [2021-11-21 00:17:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 769 states have (on average 1.8426527958387515) internal successors, (1417), 1179 states have internal predecessors, (1417), 15 states have call successors, (15), 8 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2021-11-21 00:17:54,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1449 transitions. [2021-11-21 00:17:54,256 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1449 transitions. Word has length 68 [2021-11-21 00:17:54,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:54,256 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 1449 transitions. [2021-11-21 00:17:54,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1449 transitions. [2021-11-21 00:17:54,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 00:17:54,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:54,257 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] [2021-11-21 00:17:54,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:54,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:54,486 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1913615011, now seen corresponding path program 1 times [2021-11-21 00:17:54,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:54,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287495914] [2021-11-21 00:17:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:54,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:54,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:54,489 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:54,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 00:17:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:54,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:17:54,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:54,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:55,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:55,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287495914] [2021-11-21 00:17:55,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287495914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:55,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:55,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:17:55,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175018607] [2021-11-21 00:17:55,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:55,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:17:55,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:17:55,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:17:55,277 INFO L87 Difference]: Start difference. First operand 1201 states and 1449 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:17:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:55,607 INFO L93 Difference]: Finished difference Result 1242 states and 1493 transitions. [2021-11-21 00:17:55,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:17:55,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2021-11-21 00:17:55,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:55,615 INFO L225 Difference]: With dead ends: 1242 [2021-11-21 00:17:55,616 INFO L226 Difference]: Without dead ends: 1239 [2021-11-21 00:17:55,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:17:55,618 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 127 mSDsluCounter, 5626 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 6593 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:55,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 6593 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:17:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2021-11-21 00:17:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1198. [2021-11-21 00:17:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 767 states have (on average 1.8435462842242503) internal successors, (1414), 1176 states have internal predecessors, (1414), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-21 00:17:55,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1445 transitions. [2021-11-21 00:17:55,643 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1445 transitions. Word has length 68 [2021-11-21 00:17:55,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:55,643 INFO L470 AbstractCegarLoop]: Abstraction has 1198 states and 1445 transitions. [2021-11-21 00:17:55,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:17:55,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1445 transitions. [2021-11-21 00:17:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:17:55,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:55,645 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] [2021-11-21 00:17:55,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:55,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:55,858 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:17:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:55,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1847999061, now seen corresponding path program 1 times [2021-11-21 00:17:55,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:55,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398550552] [2021-11-21 00:17:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:55,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:55,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:55,861 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:55,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 00:17:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:56,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:17:56,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:56,298 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 [2021-11-21 00:17:56,554 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-21 00:17:56,554 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 15 treesize of output 20 [2021-11-21 00:17:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:56,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:56,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:56,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398550552] [2021-11-21 00:17:56,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398550552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:56,916 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:56,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2021-11-21 00:17:56,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71933934] [2021-11-21 00:17:56,917 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:56,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 00:17:56,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:56,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 00:17:56,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:17:56,918 INFO L87 Difference]: Start difference. First operand 1198 states and 1445 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:17:59,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:59,980 INFO L93 Difference]: Finished difference Result 2163 states and 2630 transitions. [2021-11-21 00:17:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:17:59,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 73 [2021-11-21 00:17:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:59,992 INFO L225 Difference]: With dead ends: 2163 [2021-11-21 00:17:59,993 INFO L226 Difference]: Without dead ends: 2163 [2021-11-21 00:17:59,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:17:59,994 INFO L933 BasicCegarLoop]: 815 mSDtfsCounter, 1393 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 922 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:59,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1399 Valid, 2286 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1374 Invalid, 0 Unknown, 922 Unchecked, 3.0s Time] [2021-11-21 00:17:59,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2021-11-21 00:18:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 1197. [2021-11-21 00:18:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 767 states have (on average 1.8422425032594525) internal successors, (1413), 1175 states have internal predecessors, (1413), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-21 00:18:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1444 transitions. [2021-11-21 00:18:00,025 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1444 transitions. Word has length 73 [2021-11-21 00:18:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:00,025 INFO L470 AbstractCegarLoop]: Abstraction has 1197 states and 1444 transitions. [2021-11-21 00:18:00,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:18:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1444 transitions. [2021-11-21 00:18:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:18:00,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:00,026 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] [2021-11-21 00:18:00,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:00,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:00,241 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:00,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:00,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1847999062, now seen corresponding path program 1 times [2021-11-21 00:18:00,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:00,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326090463] [2021-11-21 00:18:00,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:00,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:00,243 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:00,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-21 00:18:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:00,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 00:18:00,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:00,688 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 [2021-11-21 00:18:00,693 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 [2021-11-21 00:18:03,419 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:18:03,420 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 26 treesize of output 28 [2021-11-21 00:18:03,430 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:18:03,431 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 20 treesize of output 20 [2021-11-21 00:18:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:03,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:09,264 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_malloc_#res.base_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_alt_malloc_#res.base_12| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alt_malloc_#res.base_12|)))))) (or (exists ((v_alt_malloc_~sz_20 (_ BitVec 32))) (not (bvule (bvadd |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ bv12 32)) (select (store |c_old(#length)| |v_alt_malloc_#res.base_12| v_alt_malloc_~sz_20) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_4|)))) (not (bvule (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|) (bvadd |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ bv12 32))))))) (and (forall ((alt_malloc_~sz (_ BitVec 32))) (bvule (bvadd |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ bv12 32)) (select (store |c_#length| |v_alt_malloc_#res.base_13| alt_malloc_~sz) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_4|))) (bvule (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|) (bvadd |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ bv12 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_alt_malloc_#res.base_13|)))))) is different from true [2021-11-21 00:18:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:14,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:14,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326090463] [2021-11-21 00:18:14,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326090463] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:14,360 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:14,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-21 00:18:14,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338510239] [2021-11-21 00:18:14,361 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:14,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:18:14,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:14,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:18:14,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=84, Unknown=3, NotChecked=18, Total=132 [2021-11-21 00:18:14,362 INFO L87 Difference]: Start difference. First operand 1197 states and 1444 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 00:18:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:22,140 INFO L93 Difference]: Finished difference Result 2206 states and 2735 transitions. [2021-11-21 00:18:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:18:22,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 73 [2021-11-21 00:18:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:22,149 INFO L225 Difference]: With dead ends: 2206 [2021-11-21 00:18:22,149 INFO L226 Difference]: Without dead ends: 2206 [2021-11-21 00:18:22,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=35, Invalid=98, Unknown=3, NotChecked=20, Total=156 [2021-11-21 00:18:22,150 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2398 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 3936 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 7888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3892 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:22,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 3685 Invalid, 7888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3936 Invalid, 0 Unknown, 3892 Unchecked, 7.6s Time] [2021-11-21 00:18:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-21 00:18:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1165. [2021-11-21 00:18:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 769 states have (on average 1.7958387516254877) internal successors, (1381), 1143 states have internal predecessors, (1381), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-21 00:18:22,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1412 transitions. [2021-11-21 00:18:22,174 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1412 transitions. Word has length 73 [2021-11-21 00:18:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:22,175 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 1412 transitions. [2021-11-21 00:18:22,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 00:18:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1412 transitions. [2021-11-21 00:18:22,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-21 00:18:22,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:22,176 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:22,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:22,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:22,390 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash 816968073, now seen corresponding path program 1 times [2021-11-21 00:18:22,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:22,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436349390] [2021-11-21 00:18:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:22,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:22,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:22,392 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:22,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-21 00:18:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:22,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:18:22,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:22,777 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 [2021-11-21 00:18:22,801 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 24 treesize of output 20 [2021-11-21 00:18:22,844 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 27 treesize of output 15 [2021-11-21 00:18:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:22,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:23,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:23,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436349390] [2021-11-21 00:18:23,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436349390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:23,049 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:23,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-21 00:18:23,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529083021] [2021-11-21 00:18:23,050 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:23,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:18:23,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:18:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:18:23,051 INFO L87 Difference]: Start difference. First operand 1165 states and 1412 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:18:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:26,781 INFO L93 Difference]: Finished difference Result 1173 states and 1420 transitions. [2021-11-21 00:18:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 00:18:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2021-11-21 00:18:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:26,786 INFO L225 Difference]: With dead ends: 1173 [2021-11-21 00:18:26,786 INFO L226 Difference]: Without dead ends: 1173 [2021-11-21 00:18:26,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:18:26,787 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 23 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:26,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 3870 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:18:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2021-11-21 00:18:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1172. [2021-11-21 00:18:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 775 states have (on average 1.792258064516129) internal successors, (1389), 1149 states have internal predecessors, (1389), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-21 00:18:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1420 transitions. [2021-11-21 00:18:26,806 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1420 transitions. Word has length 80 [2021-11-21 00:18:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:26,807 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1420 transitions. [2021-11-21 00:18:26,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:18:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1420 transitions. [2021-11-21 00:18:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 00:18:26,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:26,808 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:26,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-21 00:18:27,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:27,023 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash -443793445, now seen corresponding path program 1 times [2021-11-21 00:18:27,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:27,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783390239] [2021-11-21 00:18:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:27,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:27,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:27,026 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:27,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-21 00:18:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-21 00:18:27,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:27,379 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 [2021-11-21 00:18:27,416 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 [2021-11-21 00:18:27,423 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 [2021-11-21 00:18:27,472 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 [2021-11-21 00:18:27,475 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 [2021-11-21 00:18:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:27,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:28,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:28,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783390239] [2021-11-21 00:18:28,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783390239] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:28,360 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:28,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-11-21 00:18:28,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714451187] [2021-11-21 00:18:28,360 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:28,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 00:18:28,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 00:18:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-21 00:18:28,362 INFO L87 Difference]: Start difference. First operand 1172 states and 1420 transitions. Second operand has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:18:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:43,911 INFO L93 Difference]: Finished difference Result 1174 states and 1419 transitions. [2021-11-21 00:18:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:18:43,912 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 81 [2021-11-21 00:18:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:43,916 INFO L225 Difference]: With dead ends: 1174 [2021-11-21 00:18:43,916 INFO L226 Difference]: Without dead ends: 1174 [2021-11-21 00:18:43,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-11-21 00:18:43,918 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 33 mSDsluCounter, 7300 mSDsCounter, 0 mSdLazyCounter, 4924 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8225 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:43,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 8225 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4924 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2021-11-21 00:18:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2021-11-21 00:18:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1172. [2021-11-21 00:18:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 775 states have (on average 1.790967741935484) internal successors, (1388), 1149 states have internal predecessors, (1388), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-21 00:18:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1419 transitions. [2021-11-21 00:18:43,937 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1419 transitions. Word has length 81 [2021-11-21 00:18:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:43,937 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1419 transitions. [2021-11-21 00:18:43,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:18:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1419 transitions. [2021-11-21 00:18:43,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 00:18:43,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:43,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:43,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-21 00:18:44,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:44,171 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:44,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:44,171 INFO L85 PathProgramCache]: Analyzing trace with hash 540063607, now seen corresponding path program 1 times [2021-11-21 00:18:44,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:44,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982300672] [2021-11-21 00:18:44,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:44,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:44,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:44,172 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:44,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-21 00:18:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:44,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:18:44,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:44,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:44,849 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:44,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982300672] [2021-11-21 00:18:44,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982300672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:44,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:44,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:18:44,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410523490] [2021-11-21 00:18:44,850 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:44,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:18:44,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:18:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:18:44,852 INFO L87 Difference]: Start difference. First operand 1172 states and 1419 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-21 00:18:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:44,991 INFO L93 Difference]: Finished difference Result 1184 states and 1432 transitions. [2021-11-21 00:18:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:18:44,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 88 [2021-11-21 00:18:44,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:44,997 INFO L225 Difference]: With dead ends: 1184 [2021-11-21 00:18:44,997 INFO L226 Difference]: Without dead ends: 1178 [2021-11-21 00:18:44,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:18:44,998 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 33 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:44,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 3708 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:18:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2021-11-21 00:18:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2021-11-21 00:18:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 780 states have (on average 1.7871794871794873) internal successors, (1394), 1155 states have internal predecessors, (1394), 15 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2021-11-21 00:18:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1426 transitions. [2021-11-21 00:18:45,019 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1426 transitions. Word has length 88 [2021-11-21 00:18:45,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:45,019 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1426 transitions. [2021-11-21 00:18:45,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-21 00:18:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1426 transitions. [2021-11-21 00:18:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-21 00:18:45,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:45,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:45,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-21 00:18:45,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:45,235 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1673703735, now seen corresponding path program 1 times [2021-11-21 00:18:45,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:45,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946255345] [2021-11-21 00:18:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:45,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:45,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:45,238 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:45,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-21 00:18:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:45,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:18:45,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:45,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:45,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:45,932 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:45,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946255345] [2021-11-21 00:18:45,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946255345] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:45,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369729075] [2021-11-21 00:18:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:45,932 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:18:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:18:45,934 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:18:45,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-21 00:18:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:46,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:18:46,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:46,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:46,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1369729075] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:46,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288217936] [2021-11-21 00:18:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:46,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:46,686 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:46,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-21 00:18:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:46,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:18:46,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:47,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:47,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288217936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:47,377 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:18:47,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 17 [2021-11-21 00:18:47,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390191304] [2021-11-21 00:18:47,378 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:18:47,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 00:18:47,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 00:18:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-21 00:18:47,379 INFO L87 Difference]: Start difference. First operand 1178 states and 1426 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-21 00:18:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:47,928 INFO L93 Difference]: Finished difference Result 1196 states and 1447 transitions. [2021-11-21 00:18:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 00:18:47,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 90 [2021-11-21 00:18:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:47,933 INFO L225 Difference]: With dead ends: 1196 [2021-11-21 00:18:47,933 INFO L226 Difference]: Without dead ends: 1187 [2021-11-21 00:18:47,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=486, Unknown=0, NotChecked=0, Total=756 [2021-11-21 00:18:47,934 INFO L933 BasicCegarLoop]: 935 mSDtfsCounter, 65 mSDsluCounter, 6497 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 7432 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:47,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 7432 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:18:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-11-21 00:18:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1184. [2021-11-21 00:18:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 786 states have (on average 1.782442748091603) internal successors, (1401), 1161 states have internal predecessors, (1401), 15 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2021-11-21 00:18:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1433 transitions. [2021-11-21 00:18:47,955 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1433 transitions. Word has length 90 [2021-11-21 00:18:47,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:47,956 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 1433 transitions. [2021-11-21 00:18:47,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-21 00:18:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1433 transitions. [2021-11-21 00:18:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-21 00:18:47,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:47,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:47,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:48,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-21 00:18:48,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:48,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt [2021-11-21 00:18:48,579 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-21 00:18:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash -583248713, now seen corresponding path program 2 times [2021-11-21 00:18:48,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:48,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996131570] [2021-11-21 00:18:48,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:48,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:48,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:48,581 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:48,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-21 00:18:49,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:18:49,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:18:49,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:18:49,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:49,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:49,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:49,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996131570] [2021-11-21 00:18:49,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996131570] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:49,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [598303787] [2021-11-21 00:18:49,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:49,917 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:18:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:18:49,923 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:18:49,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-21 00:18:50,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:18:50,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:18:50,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:18:50,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:51,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:51,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [598303787] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:51,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571259208] [2021-11-21 00:18:51,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:51,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:51,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:51,327 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:51,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44e96bd-26c7-48b6-bd0a-771dcb0b8885/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-21 00:20:04,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:20:04,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:20:04,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-21 00:20:04,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:20:04,660 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:20:04,660 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 16 treesize of output 16 [2021-11-21 00:20:04,705 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 18 treesize of output 14 [2021-11-21 00:21:37,251 WARN L227 SmtUtils]: Spent 15.00s 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) [2021-11-21 00:21:37,252 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 00:21:37,252 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 78 treesize of output 82 [2021-11-21 00:21:37,957 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:21:37,957 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 127 treesize of output 40 [2021-11-21 00:21:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 11 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:21:38,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:21:40,517 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:21:40,517 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 65 treesize of output 64 [2021-11-21 00:25:53,952 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:25:53,953 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 115 treesize of output 114 [2021-11-21 00:25:57,901 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121| (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) is different from false [2021-11-21 00:26:01,122 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121| (_ BitVec 32))) (or (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) is different from false [2021-11-21 00:26:30,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-21 00:26:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:26:30,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571259208] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:26:30,947 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:26:30,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 18, 18] total 53 [2021-11-21 00:26:30,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283487777] [2021-11-21 00:26:30,948 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:26:30,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-21 00:26:30,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:26:30,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-21 00:26:30,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2200, Unknown=156, NotChecked=198, Total=2756 [2021-11-21 00:26:30,952 INFO L87 Difference]: Start difference. First operand 1184 states and 1433 transitions. Second operand has 53 states, 51 states have (on average 4.96078431372549) internal successors, (253), 49 states have internal predecessors, (253), 7 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2021-11-21 00:26:37,475 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121| (_ BitVec 32))) (or (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) (= |c_old(#valid)| |c_#valid|) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-21 00:26:39,567 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121| (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_121|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-21 00:28:01,089 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ bv1 32)) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1))))) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))))))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|)))))) is different from false [2021-11-21 00:28:03,127 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv2 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))))))))))) is different from false [2021-11-21 00:28:05,168 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))))) (_ bv1 1))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= (_ bv3 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:28:07,200 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv4 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1|) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))))))))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:28:09,236 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))) (_ bv1 1))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))))) (= |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ bv5 32)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87|) (_ bv0 32)) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:28:11,253 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_89| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_89|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv6 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1|) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#in~a#1.base|))))) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1)))))) is different from false [2021-11-21 00:28:13,271 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_89| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_85|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_86|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_87|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_88|) (_ bv0 32)) (bvadd |alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_89|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (not (bvult (_ bv6 32) |c_alt_bzero_#in~n#1|)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#in~a#1.base|))))) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1)))))) is different from false [2021-11-21 00:30:27,931 WARN L227 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 00:30:29,943 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ bv1 32)) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_107|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_110|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_108|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_105|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_104|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| |v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_106|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)) |c_alt_bzero_#in~a#1.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1)))))) is different from false