./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:35:11,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:35:11,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:35:11,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:35:11,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:35:11,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:35:11,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:35:11,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:35:11,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:35:12,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:35:12,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:35:12,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:35:12,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:35:12,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:35:12,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:35:12,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:35:12,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:35:12,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:35:12,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:35:12,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:35:12,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:35:12,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:35:12,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:35:12,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:35:12,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:35:12,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:35:12,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:35:12,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:35:12,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:35:12,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:35:12,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:35:12,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:35:12,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:35:12,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:35:12,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:35:12,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:35:12,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:35:12,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:35:12,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:35:12,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:35:12,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:35:12,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 14:35:12,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:35:12,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:35:12,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:35:12,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:35:12,127 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:35:12,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:35:12,130 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:35:12,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:35:12,130 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:35:12,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:35:12,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:35:12,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:35:12,131 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:35:12,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:35:12,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:35:12,132 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:35:12,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:35:12,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:35:12,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:35:12,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:35:12,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:35:12,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:35:12,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:35:12,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:35:12,135 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:35:12,135 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:35:12,135 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:35:12,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:35:12,136 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:35:12,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:35:12,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:35:12,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:35:12,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:35:12,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:35:12,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:35:12,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:35:12,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:35:12,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:35:12,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:35:12,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:35:12,139 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_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2021-11-19 14:35:12,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:35:12,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:35:12,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:35:12,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:35:12,454 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:35:12,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-19 14:35:12,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/8afdf68e4/06ecb12949fe4439a829f691f9547e6b/FLAGc753131c8 [2021-11-19 14:35:13,240 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:35:13,241 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-19 14:35:13,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/8afdf68e4/06ecb12949fe4439a829f691f9547e6b/FLAGc753131c8 [2021-11-19 14:35:13,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/8afdf68e4/06ecb12949fe4439a829f691f9547e6b [2021-11-19 14:35:13,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:35:13,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:35:13,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:13,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:35:13,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:35:13,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:13" (1/1) ... [2021-11-19 14:35:13,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c5ce3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:13, skipping insertion in model container [2021-11-19 14:35:13,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:13" (1/1) ... [2021-11-19 14:35:13,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:35:13,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:35:14,250 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-19 14:35:14,272 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-19 14:35:14,429 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-19 14:35:14,436 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-19 14:35:14,445 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:14,468 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:35:14,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bd4a727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:14, skipping insertion in model container [2021-11-19 14:35:14,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:14,469 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:35:14,472 INFO L158 Benchmark]: Toolchain (without parser) took 1052.29ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 54.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:35:14,473 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:35:14,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1042.92ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 54.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:35:14,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1042.92ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 54.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:35:16,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:35:16,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:35:16,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:35:16,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:35:16,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:35:16,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:35:16,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:35:16,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:35:16,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:35:16,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:35:16,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:35:16,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:35:16,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:35:16,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:35:16,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:35:16,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:35:16,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:35:16,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:35:16,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:35:16,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:35:16,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:35:16,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:35:16,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:35:16,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:35:16,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:35:16,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:35:16,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:35:16,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:35:16,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:35:16,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:35:16,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:35:16,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:35:16,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:35:16,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:35:16,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:35:16,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:35:16,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:35:16,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:35:16,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:35:16,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:35:16,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 14:35:16,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:35:16,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:35:16,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:35:16,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:35:16,999 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:35:16,999 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:35:16,999 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:35:17,000 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:35:17,000 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:35:17,000 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:35:17,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:35:17,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:35:17,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:35:17,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:35:17,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:35:17,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:35:17,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:35:17,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:35:17,005 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:35:17,006 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:35:17,006 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:35:17,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:35:17,007 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:35:17,007 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:35:17,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:35:17,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:35:17,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:35:17,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:35:17,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:35:17,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:35:17,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:35:17,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:35:17,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:35:17,010 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:35:17,011 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:35:17,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:35:17,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:35:17,012 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_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2021-11-19 14:35:17,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:35:17,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:35:17,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:35:17,480 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:35:17,481 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:35:17,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-19 14:35:17,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/0d871ffb1/54a2bf72fa6e4ad4b80c900c46ce4e56/FLAGbf96d8050 [2021-11-19 14:35:18,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:35:18,396 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-19 14:35:18,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/0d871ffb1/54a2bf72fa6e4ad4b80c900c46ce4e56/FLAGbf96d8050 [2021-11-19 14:35:18,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/data/0d871ffb1/54a2bf72fa6e4ad4b80c900c46ce4e56 [2021-11-19 14:35:18,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:35:18,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:35:18,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:18,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:35:18,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:35:18,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:18" (1/1) ... [2021-11-19 14:35:18,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b90d013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:18, skipping insertion in model container [2021-11-19 14:35:18,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:18" (1/1) ... [2021-11-19 14:35:18,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:35:18,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:35:19,288 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-19 14:35:19,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-19 14:35:19,413 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-19 14:35:19,414 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-19 14:35:19,423 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:19,436 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:35:19,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:35:19,503 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-19 14:35:19,512 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-19 14:35:19,592 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-19 14:35:19,594 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-19 14:35:19,598 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:19,604 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:35:19,658 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-19 14:35:19,660 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-19 14:35:19,715 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-19 14:35:19,715 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_f647634f-b759-4eea-b66f-3920819c2e10/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-19 14:35:19,717 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:19,794 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:35:19,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19 WrapperNode [2021-11-19 14:35:19,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:19,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:35:19,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:35:19,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:35:19,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:19,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:19,942 INFO L137 Inliner]: procedures = 285, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1041 [2021-11-19 14:35:19,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:35:19,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:35:19,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:35:19,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:35:19,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:19,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:19,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:19,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:20,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:20,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:20,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:20,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:35:20,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:35:20,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:35:20,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:35:20,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (1/1) ... [2021-11-19 14:35:20,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:35:20,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:35:20,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:35:20,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:35:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:35:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:35:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:35:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:35:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:35:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:35:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:35:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:35:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-19 14:35:20,266 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-19 14:35:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:35:20,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:35:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:35:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:35:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-19 14:35:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-19 14:35:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:35:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-19 14:35:20,269 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-19 14:35:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:35:20,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:35:20,510 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:35:20,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:35:26,239 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:35:26,257 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:35:26,257 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-19 14:35:26,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:35:26 BoogieIcfgContainer [2021-11-19 14:35:26,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:35:26,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:35:26,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:35:26,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:35:26,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:35:18" (1/3) ... [2021-11-19 14:35:26,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6491e434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:35:26, skipping insertion in model container [2021-11-19 14:35:26,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:19" (2/3) ... [2021-11-19 14:35:26,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6491e434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:35:26, skipping insertion in model container [2021-11-19 14:35:26,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:35:26" (3/3) ... [2021-11-19 14:35:26,271 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2021-11-19 14:35:26,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:35:26,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2021-11-19 14:35:26,325 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:35:26,333 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:35:26,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2021-11-19 14:35:26,383 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) [2021-11-19 14:35:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 14:35:26,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:26,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 14:35:26,393 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:26,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:26,405 INFO L85 PathProgramCache]: Analyzing trace with hash 77521, now seen corresponding path program 1 times [2021-11-19 14:35:26,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:26,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524042048] [2021-11-19 14:35:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:26,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:26,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:26,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:26,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:35:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:26,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:35:26,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:26,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:35:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:26,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:26,809 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:26,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524042048] [2021-11-19 14:35:26,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524042048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:26,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:26,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:35:26,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038835420] [2021-11-19 14:35:26,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:26,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:35:26,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:35:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:35:26,866 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) [2021-11-19 14:35:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:29,395 INFO L93 Difference]: Finished difference Result 1162 states and 1229 transitions. [2021-11-19 14:35:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:35:29,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 14:35:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:29,432 INFO L225 Difference]: With dead ends: 1162 [2021-11-19 14:35:29,433 INFO L226 Difference]: Without dead ends: 1160 [2021-11-19 14:35:29,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:35:29,440 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 714 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:29,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 1044 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:35:29,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2021-11-19 14:35:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1103. [2021-11-19 14:35:29,590 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) [2021-11-19 14:35:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1210 transitions. [2021-11-19 14:35:29,604 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1210 transitions. Word has length 3 [2021-11-19 14:35:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:29,606 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1210 transitions. [2021-11-19 14:35:29,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:35:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1210 transitions. [2021-11-19 14:35:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 14:35:29,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:29,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 14:35:29,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:35:29,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:29,820 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash 77522, now seen corresponding path program 1 times [2021-11-19 14:35:29,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:29,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992648735] [2021-11-19 14:35:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:29,822 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:29,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:29,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:29,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:35:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:29,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:35:29,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:29,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:35:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:30,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:30,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:30,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992648735] [2021-11-19 14:35:30,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992648735] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:30,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:30,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 14:35:30,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785055928] [2021-11-19 14:35:30,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:30,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:35:30,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:35:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:30,067 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) [2021-11-19 14:35:35,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:35,027 INFO L93 Difference]: Finished difference Result 1533 states and 1633 transitions. [2021-11-19 14:35:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 14:35:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:35,039 INFO L225 Difference]: With dead ends: 1533 [2021-11-19 14:35:35,039 INFO L226 Difference]: Without dead ends: 1533 [2021-11-19 14:35:35,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:35,041 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 1124 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:35,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 1632 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-19 14:35:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-11-19 14:35:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1099. [2021-11-19 14:35:35,075 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) [2021-11-19 14:35:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1206 transitions. [2021-11-19 14:35:35,082 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1206 transitions. Word has length 3 [2021-11-19 14:35:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:35,082 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 1206 transitions. [2021-11-19 14:35:35,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:35:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1206 transitions. [2021-11-19 14:35:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:35:35,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:35,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:35,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:35,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:35,296 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:35,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash -102759776, now seen corresponding path program 1 times [2021-11-19 14:35:35,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:35,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357489128] [2021-11-19 14:35:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:35,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:35,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:35,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:35,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:35:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:35,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:35:35,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:35,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:35:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:35,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:35,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:35,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357489128] [2021-11-19 14:35:35,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357489128] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:35,566 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:35,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:35:35,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346181597] [2021-11-19 14:35:35,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:35,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:35:35,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:35:35,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:35,569 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) [2021-11-19 14:35:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:39,492 INFO L93 Difference]: Finished difference Result 1871 states and 2002 transitions. [2021-11-19 14:35:39,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:35:39,494 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 [2021-11-19 14:35:39,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:39,505 INFO L225 Difference]: With dead ends: 1871 [2021-11-19 14:35:39,505 INFO L226 Difference]: Without dead ends: 1871 [2021-11-19 14:35:39,506 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 [2021-11-19 14:35:39,510 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 2128 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s 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, 3.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:39,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2134 Valid, 1948 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-19 14:35:39,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-11-19 14:35:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1054. [2021-11-19 14:35:39,552 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) [2021-11-19 14:35:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1158 transitions. [2021-11-19 14:35:39,558 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1158 transitions. Word has length 9 [2021-11-19 14:35:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:39,562 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1158 transitions. [2021-11-19 14:35:39,562 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) [2021-11-19 14:35:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1158 transitions. [2021-11-19 14:35:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:35:39,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:39,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:39,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:39,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:39,775 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash -102759775, now seen corresponding path program 1 times [2021-11-19 14:35:39,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:39,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534678344] [2021-11-19 14:35:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:39,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:39,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:39,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:39,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:35:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:39,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:35:39,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:39,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:35:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:39,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:40,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:40,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534678344] [2021-11-19 14:35:40,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534678344] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:40,142 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:40,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:35:40,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151158196] [2021-11-19 14:35:40,142 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:40,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:35:40,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:40,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:35:40,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:40,144 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) [2021-11-19 14:35:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:46,763 INFO L93 Difference]: Finished difference Result 1486 states and 1587 transitions. [2021-11-19 14:35:46,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:35:46,764 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 [2021-11-19 14:35:46,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:46,777 INFO L225 Difference]: With dead ends: 1486 [2021-11-19 14:35:46,777 INFO L226 Difference]: Without dead ends: 1486 [2021-11-19 14:35:46,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:35:46,781 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 2041 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s 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, 6.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:46,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 2539 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-11-19 14:35:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2021-11-19 14:35:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1044. [2021-11-19 14:35:46,815 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) [2021-11-19 14:35:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1145 transitions. [2021-11-19 14:35:46,820 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1145 transitions. Word has length 9 [2021-11-19 14:35:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:46,820 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 1145 transitions. [2021-11-19 14:35:46,821 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) [2021-11-19 14:35:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1145 transitions. [2021-11-19 14:35:46,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:35:46,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:46,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:46,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:47,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:47,033 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)] === [2021-11-19 14:35:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash -856298529, now seen corresponding path program 1 times [2021-11-19 14:35:47,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:47,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980833327] [2021-11-19 14:35:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:47,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:47,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:47,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:47,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:35:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:47,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:35:47,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:47,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:47,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:47,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980833327] [2021-11-19 14:35:47,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980833327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:47,357 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:47,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:35:47,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252481921] [2021-11-19 14:35:47,358 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:47,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:35:47,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:35:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:47,360 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) [2021-11-19 14:35:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:48,058 INFO L93 Difference]: Finished difference Result 1494 states and 1632 transitions. [2021-11-19 14:35:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:35:48,059 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 [2021-11-19 14:35:48,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:48,066 INFO L225 Difference]: With dead ends: 1494 [2021-11-19 14:35:48,067 INFO L226 Difference]: Without dead ends: 1494 [2021-11-19 14:35:48,067 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 [2021-11-19 14:35:48,068 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 543 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:48,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 3092 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:35:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2021-11-19 14:35:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1283. [2021-11-19 14:35:48,101 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) [2021-11-19 14:35:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1598 transitions. [2021-11-19 14:35:48,106 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1598 transitions. Word has length 11 [2021-11-19 14:35:48,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:48,107 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1598 transitions. [2021-11-19 14:35:48,108 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) [2021-11-19 14:35:48,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1598 transitions. [2021-11-19 14:35:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:35:48,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:48,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:48,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:48,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:48,320 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)] === [2021-11-19 14:35:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:48,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2117571646, now seen corresponding path program 1 times [2021-11-19 14:35:48,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:48,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31683803] [2021-11-19 14:35:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:48,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:48,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:48,323 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:48,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:35:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:48,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:35:48,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:48,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:35:48,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:35:48,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:35:48,577 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-19 14:35:48,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-19 14:35:48,645 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-19 14:35:48,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-19 14:35:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:48,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:48,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:48,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:48,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31683803] [2021-11-19 14:35:48,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31683803] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:48,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:48,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:35:48,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413493952] [2021-11-19 14:35:48,750 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:48,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:35:48,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:35:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:48,751 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) [2021-11-19 14:35:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:50,761 INFO L93 Difference]: Finished difference Result 1643 states and 2022 transitions. [2021-11-19 14:35:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:50,763 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 [2021-11-19 14:35:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:50,771 INFO L225 Difference]: With dead ends: 1643 [2021-11-19 14:35:50,771 INFO L226 Difference]: Without dead ends: 1643 [2021-11-19 14:35:50,772 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 [2021-11-19 14:35:50,773 INFO L933 BasicCegarLoop]: 1033 mSDtfsCounter, 354 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:50,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 3862 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 14:35:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2021-11-19 14:35:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1282. [2021-11-19 14:35:50,803 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) [2021-11-19 14:35:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1596 transitions. [2021-11-19 14:35:50,808 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1596 transitions. Word has length 14 [2021-11-19 14:35:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:50,809 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 1596 transitions. [2021-11-19 14:35:50,809 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) [2021-11-19 14:35:50,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1596 transitions. [2021-11-19 14:35:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 14:35:50,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:50,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:50,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 14:35:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:51,024 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash 769788685, now seen corresponding path program 1 times [2021-11-19 14:35:51,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:51,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152811361] [2021-11-19 14:35:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:51,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:51,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:51,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:51,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:35:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:51,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:35:51,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:51,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:51,247 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:51,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152811361] [2021-11-19 14:35:51,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152811361] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:51,247 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:51,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:35:51,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981993100] [2021-11-19 14:35:51,248 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:51,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:35:51,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:51,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:35:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:51,249 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) [2021-11-19 14:35:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:51,278 INFO L93 Difference]: Finished difference Result 1222 states and 1510 transitions. [2021-11-19 14:35:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:35:51,279 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 [2021-11-19 14:35:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:51,285 INFO L225 Difference]: With dead ends: 1222 [2021-11-19 14:35:51,286 INFO L226 Difference]: Without dead ends: 1222 [2021-11-19 14:35:51,286 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 [2021-11-19 14:35:51,287 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 [2021-11-19 14:35:51,287 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] [2021-11-19 14:35:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-19 14:35:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-19 14:35:51,311 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) [2021-11-19 14:35:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1510 transitions. [2021-11-19 14:35:51,317 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1510 transitions. Word has length 19 [2021-11-19 14:35:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:51,317 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1510 transitions. [2021-11-19 14:35:51,317 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) [2021-11-19 14:35:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1510 transitions. [2021-11-19 14:35:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 14:35:51,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:51,318 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] [2021-11-19 14:35:51,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:51,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:51,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:51,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1032548102, now seen corresponding path program 1 times [2021-11-19 14:35:51,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:51,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985474396] [2021-11-19 14:35:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:51,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:51,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:51,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:35:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:51,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:35:51,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:51,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:51,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:51,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985474396] [2021-11-19 14:35:51,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985474396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:51,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:51,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 14:35:51,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211203725] [2021-11-19 14:35:51,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:51,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:51,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:51,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:51,802 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) [2021-11-19 14:35:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:51,872 INFO L93 Difference]: Finished difference Result 1194 states and 1454 transitions. [2021-11-19 14:35:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:51,872 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 [2021-11-19 14:35:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:51,879 INFO L225 Difference]: With dead ends: 1194 [2021-11-19 14:35:51,879 INFO L226 Difference]: Without dead ends: 1194 [2021-11-19 14:35:51,879 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 [2021-11-19 14:35:51,880 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 [2021-11-19 14:35:51,880 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] [2021-11-19 14:35:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-11-19 14:35:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1192. [2021-11-19 14:35:51,902 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) [2021-11-19 14:35:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1452 transitions. [2021-11-19 14:35:51,907 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1452 transitions. Word has length 21 [2021-11-19 14:35:51,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:51,908 INFO L470 AbstractCegarLoop]: Abstraction has 1192 states and 1452 transitions. [2021-11-19 14:35:51,908 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) [2021-11-19 14:35:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1452 transitions. [2021-11-19 14:35:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 14:35:51,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:51,910 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] [2021-11-19 14:35:51,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:35:52,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:52,124 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:52,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308372, now seen corresponding path program 1 times [2021-11-19 14:35:52,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:52,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971576929] [2021-11-19 14:35:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:52,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:52,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:52,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:52,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:35:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:52,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:52,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:52,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:35:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:52,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:52,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:52,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971576929] [2021-11-19 14:35:52,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971576929] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:52,536 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:52,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:35:52,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768227378] [2021-11-19 14:35:52,536 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:52,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:52,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:52,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:52,538 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) [2021-11-19 14:35:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:55,535 INFO L93 Difference]: Finished difference Result 2165 states and 2643 transitions. [2021-11-19 14:35:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:35:55,536 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 [2021-11-19 14:35:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:55,544 INFO L225 Difference]: With dead ends: 2165 [2021-11-19 14:35:55,544 INFO L226 Difference]: Without dead ends: 2165 [2021-11-19 14:35:55,545 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 [2021-11-19 14:35:55,545 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 2017 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:55,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2020 Valid, 1988 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:35:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2021-11-19 14:35:55,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1188. [2021-11-19 14:35:55,574 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) [2021-11-19 14:35:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1444 transitions. [2021-11-19 14:35:55,579 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1444 transitions. Word has length 35 [2021-11-19 14:35:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:55,580 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1444 transitions. [2021-11-19 14:35:55,580 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) [2021-11-19 14:35:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1444 transitions. [2021-11-19 14:35:55,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 14:35:55,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:55,581 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] [2021-11-19 14:35:55,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:55,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:55,793 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:35:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308373, now seen corresponding path program 1 times [2021-11-19 14:35:55,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:55,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146670140] [2021-11-19 14:35:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:55,794 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:55,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:55,795 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:55,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:35:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:55,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:35:55,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:56,005 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 [2021-11-19 14:35:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:56,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:56,786 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:56,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146670140] [2021-11-19 14:35:56,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146670140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:56,786 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:56,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 14:35:56,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874004208] [2021-11-19 14:35:56,787 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:56,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:35:56,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:35:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:35:56,788 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) [2021-11-19 14:36:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:05,372 INFO L93 Difference]: Finished difference Result 1795 states and 2203 transitions. [2021-11-19 14:36:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:36:05,373 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 [2021-11-19 14:36:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:05,380 INFO L225 Difference]: With dead ends: 1795 [2021-11-19 14:36:05,380 INFO L226 Difference]: Without dead ends: 1795 [2021-11-19 14:36:05,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:36:05,381 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 1770 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 8.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:05,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1770 Valid, 3956 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-19 14:36:05,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-19 14:36:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1184. [2021-11-19 14:36:05,404 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) [2021-11-19 14:36:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1436 transitions. [2021-11-19 14:36:05,409 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1436 transitions. Word has length 35 [2021-11-19 14:36:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:05,409 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 1436 transitions. [2021-11-19 14:36:05,409 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) [2021-11-19 14:36:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1436 transitions. [2021-11-19 14:36:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-19 14:36:05,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:05,411 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] [2021-11-19 14:36:05,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:05,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:05,624 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:05,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:05,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2063927218, now seen corresponding path program 1 times [2021-11-19 14:36:05,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:05,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814935424] [2021-11-19 14:36:05,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:05,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:05,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:05,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:05,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:36:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:05,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:36:05,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:05,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:06,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:06,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814935424] [2021-11-19 14:36:06,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814935424] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:06,078 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:06,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:36:06,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982480807] [2021-11-19 14:36:06,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:06,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:36:06,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:06,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:36:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:36:06,079 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) [2021-11-19 14:36:06,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:06,145 INFO L93 Difference]: Finished difference Result 1172 states and 1416 transitions. [2021-11-19 14:36:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:06,145 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 [2021-11-19 14:36:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:06,152 INFO L225 Difference]: With dead ends: 1172 [2021-11-19 14:36:06,152 INFO L226 Difference]: Without dead ends: 1172 [2021-11-19 14:36:06,152 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 [2021-11-19 14:36:06,153 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, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:06,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 1990 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-11-19 14:36:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2021-11-19 14:36:06,174 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) [2021-11-19 14:36:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1416 transitions. [2021-11-19 14:36:06,185 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1416 transitions. Word has length 54 [2021-11-19 14:36:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:06,186 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1416 transitions. [2021-11-19 14:36:06,186 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) [2021-11-19 14:36:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1416 transitions. [2021-11-19 14:36:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 14:36:06,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:06,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:06,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:06,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:06,406 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:06,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:06,406 INFO L85 PathProgramCache]: Analyzing trace with hash -203140862, now seen corresponding path program 1 times [2021-11-19 14:36:06,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:06,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033968228] [2021-11-19 14:36:06,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:06,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:06,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:06,408 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:06,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:36:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:06,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:36:06,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:06,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:06,714 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 14:36:06,714 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 14 treesize of output 19 [2021-11-19 14:36:06,768 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-19 14:36:06,769 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 26 treesize of output 37 [2021-11-19 14:36:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:07,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:07,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:07,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033968228] [2021-11-19 14:36:07,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033968228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:07,395 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:07,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:36:07,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196271908] [2021-11-19 14:36:07,396 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:07,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:36:07,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:36:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:36:07,397 INFO L87 Difference]: Start difference. First operand 1172 states and 1416 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2021-11-19 14:36:09,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:09,534 INFO L93 Difference]: Finished difference Result 1827 states and 2205 transitions. [2021-11-19 14:36:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:36:09,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 62 [2021-11-19 14:36:09,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:09,542 INFO L225 Difference]: With dead ends: 1827 [2021-11-19 14:36:09,542 INFO L226 Difference]: Without dead ends: 1827 [2021-11-19 14:36:09,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:36:09,543 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1718 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:09,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1718 Valid, 1902 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 708 Invalid, 0 Unknown, 423 Unchecked, 2.1s Time] [2021-11-19 14:36:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2021-11-19 14:36:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1448. [2021-11-19 14:36:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1016 states have (on average 1.8208661417322836) internal successors, (1850), 1426 states have internal predecessors, (1850), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 14:36:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1888 transitions. [2021-11-19 14:36:09,592 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1888 transitions. Word has length 62 [2021-11-19 14:36:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:09,593 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 1888 transitions. [2021-11-19 14:36:09,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2021-11-19 14:36:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1888 transitions. [2021-11-19 14:36:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 14:36:09,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:09,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:09,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:09,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:09,814 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:09,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:09,814 INFO L85 PathProgramCache]: Analyzing trace with hash -203140861, now seen corresponding path program 1 times [2021-11-19 14:36:09,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:09,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274808427] [2021-11-19 14:36:09,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:09,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:09,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:09,817 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:09,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:36:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:10,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:36:10,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:10,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:10,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:10,275 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 14:36:10,275 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 [2021-11-19 14:36:10,281 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 14:36:10,282 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 [2021-11-19 14:36:10,416 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-19 14:36:10,417 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 [2021-11-19 14:36:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:15,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:23,716 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:23,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274808427] [2021-11-19 14:36:23,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274808427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:23,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:23,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 9 [2021-11-19 14:36:23,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39710601] [2021-11-19 14:36:23,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:23,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:36:23,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:36:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=73, Unknown=2, NotChecked=0, Total=110 [2021-11-19 14:36:23,718 INFO L87 Difference]: Start difference. First operand 1448 states and 1888 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) [2021-11-19 14:36:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:23,746 INFO L93 Difference]: Finished difference Result 1453 states and 1894 transitions. [2021-11-19 14:36:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:36:23,747 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 [2021-11-19 14:36:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:23,755 INFO L225 Difference]: With dead ends: 1453 [2021-11-19 14:36:23,756 INFO L226 Difference]: Without dead ends: 1453 [2021-11-19 14:36:23,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=35, Invalid=73, Unknown=2, NotChecked=0, Total=110 [2021-11-19 14:36:23,757 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 78 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1103 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:23,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 3406 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 1103 Unchecked, 0.0s Time] [2021-11-19 14:36:23,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2021-11-19 14:36:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2021-11-19 14:36:23,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1020 states have (on average 1.8176470588235294) internal successors, (1854), 1430 states have internal predecessors, (1854), 20 states have call successors, (20), 8 states have call predecessors, (20), 5 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 14:36:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1894 transitions. [2021-11-19 14:36:23,786 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1894 transitions. Word has length 62 [2021-11-19 14:36:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:23,786 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 1894 transitions. [2021-11-19 14:36:23,787 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) [2021-11-19 14:36:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1894 transitions. [2021-11-19 14:36:23,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:36:23,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:23,788 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] [2021-11-19 14:36:23,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:24,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:24,002 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)] === [2021-11-19 14:36:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:24,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1864793253, now seen corresponding path program 1 times [2021-11-19 14:36:24,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:24,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471630552] [2021-11-19 14:36:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:24,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:24,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:24,005 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:24,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:36:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:24,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:36:24,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:24,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:24,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:24,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471630552] [2021-11-19 14:36:24,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471630552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:24,557 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:24,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:36:24,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129855283] [2021-11-19 14:36:24,558 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:24,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:36:24,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:36:24,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:36:24,559 INFO L87 Difference]: Start difference. First operand 1453 states and 1894 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) [2021-11-19 14:36:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:24,717 INFO L93 Difference]: Finished difference Result 1469 states and 1911 transitions. [2021-11-19 14:36:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:36:24,717 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 [2021-11-19 14:36:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:24,725 INFO L225 Difference]: With dead ends: 1469 [2021-11-19 14:36:24,726 INFO L226 Difference]: Without dead ends: 1469 [2021-11-19 14:36:24,726 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 [2021-11-19 14:36:24,727 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 23 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:24,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 5793 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:36:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2021-11-19 14:36:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1467. [2021-11-19 14:36:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1031 states have (on average 1.8128031037827352) internal successors, (1869), 1441 states have internal predecessors, (1869), 21 states have call successors, (21), 11 states have call predecessors, (21), 7 states have return successors, (21), 16 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-19 14:36:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1911 transitions. [2021-11-19 14:36:24,756 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1911 transitions. Word has length 68 [2021-11-19 14:36:24,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:24,757 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 1911 transitions. [2021-11-19 14:36:24,757 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) [2021-11-19 14:36:24,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1911 transitions. [2021-11-19 14:36:24,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:36:24,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:24,758 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] [2021-11-19 14:36:24,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:24,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:24,972 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1913615011, now seen corresponding path program 1 times [2021-11-19 14:36:24,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:24,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151622928] [2021-11-19 14:36:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:24,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:24,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:24,974 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:24,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:36:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:25,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:36:25,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:25,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:25,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:25,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151622928] [2021-11-19 14:36:25,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151622928] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:25,711 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:25,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:36:25,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153291940] [2021-11-19 14:36:25,711 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:25,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:36:25,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:25,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:36:25,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:36:25,712 INFO L87 Difference]: Start difference. First operand 1467 states and 1911 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) [2021-11-19 14:36:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:26,007 INFO L93 Difference]: Finished difference Result 1511 states and 1961 transitions. [2021-11-19 14:36:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:36:26,008 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 [2021-11-19 14:36:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:26,015 INFO L225 Difference]: With dead ends: 1511 [2021-11-19 14:36:26,016 INFO L226 Difference]: Without dead ends: 1511 [2021-11-19 14:36:26,016 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 [2021-11-19 14:36:26,017 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 133 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 4804 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:26,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 4804 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:36:26,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2021-11-19 14:36:26,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1470. [2021-11-19 14:36:26,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1033 states have (on average 1.8112294288480155) internal successors, (1871), 1443 states have internal predecessors, (1871), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (23), 16 states have call predecessors, (23), 21 states have call successors, (23) [2021-11-19 14:36:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1915 transitions. [2021-11-19 14:36:26,047 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1915 transitions. Word has length 68 [2021-11-19 14:36:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:26,048 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 1915 transitions. [2021-11-19 14:36:26,048 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) [2021-11-19 14:36:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1915 transitions. [2021-11-19 14:36:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:36:26,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:26,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:26,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:26,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:26,264 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:26,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:26,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1847999061, now seen corresponding path program 1 times [2021-11-19 14:36:26,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:26,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446835521] [2021-11-19 14:36:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:26,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:26,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:26,265 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:26,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:36:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:26,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:36:26,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:26,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:26,878 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 14:36:26,878 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 [2021-11-19 14:36:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:26,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:27,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:27,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446835521] [2021-11-19 14:36:27,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446835521] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:27,218 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:27,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2021-11-19 14:36:27,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542652203] [2021-11-19 14:36:27,218 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:27,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:36:27,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:27,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:36:27,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:36:27,219 INFO L87 Difference]: Start difference. First operand 1470 states and 1915 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) [2021-11-19 14:36:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:30,932 INFO L93 Difference]: Finished difference Result 2432 states and 3101 transitions. [2021-11-19 14:36:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:36:30,932 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 [2021-11-19 14:36:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:30,943 INFO L225 Difference]: With dead ends: 2432 [2021-11-19 14:36:30,944 INFO L226 Difference]: Without dead ends: 2432 [2021-11-19 14:36:30,944 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 [2021-11-19 14:36:30,944 INFO L933 BasicCegarLoop]: 794 mSDtfsCounter, 1417 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1443 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:30,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 3656 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2110 Invalid, 0 Unknown, 1443 Unchecked, 3.6s Time] [2021-11-19 14:36:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2021-11-19 14:36:30,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 1469. [2021-11-19 14:36:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1033 states have (on average 1.8102613746369798) internal successors, (1870), 1442 states have internal predecessors, (1870), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (23), 16 states have call predecessors, (23), 21 states have call successors, (23) [2021-11-19 14:36:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1914 transitions. [2021-11-19 14:36:30,987 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1914 transitions. Word has length 73 [2021-11-19 14:36:30,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:30,987 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 1914 transitions. [2021-11-19 14:36:30,988 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) [2021-11-19 14:36:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1914 transitions. [2021-11-19 14:36:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:36:30,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:30,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:31,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:31,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:31,202 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:36:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1847999062, now seen corresponding path program 1 times [2021-11-19 14:36:31,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:31,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169946643] [2021-11-19 14:36:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:31,203 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:31,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:31,203 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:31,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:36:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:31,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 14:36:31,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:31,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:31,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:34,334 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 14:36:34,335 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 [2021-11-19 14:36:34,343 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:36:34,344 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 [2021-11-19 14:36:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:34,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:38,112 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 [2021-11-19 14:36:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:43,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:43,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169946643] [2021-11-19 14:36:43,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169946643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:43,772 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:43,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-19 14:36:43,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337520104] [2021-11-19 14:36:43,772 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:43,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:36:43,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:43,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:36:43,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=85, Unknown=2, NotChecked=18, Total=132 [2021-11-19 14:36:43,774 INFO L87 Difference]: Start difference. First operand 1469 states and 1914 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) [2021-11-19 14:36:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:53,877 INFO L93 Difference]: Finished difference Result 2625 states and 3479 transitions. [2021-11-19 14:36:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:36:53,877 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 [2021-11-19 14:36:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:53,888 INFO L225 Difference]: With dead ends: 2625 [2021-11-19 14:36:53,889 INFO L226 Difference]: Without dead ends: 2625 [2021-11-19 14:36:53,889 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=99, Unknown=2, NotChecked=20, Total=156 [2021-11-19 14:36:53,890 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2897 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2908 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 7250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3776 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:53,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2908 Valid, 4175 Invalid, 7250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3415 Invalid, 0 Unknown, 3776 Unchecked, 7.9s Time] [2021-11-19 14:36:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2021-11-19 14:36:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1437. [2021-11-19 14:36:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1035 states have (on average 1.7748792270531402) internal successors, (1837), 1410 states have internal predecessors, (1837), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (23), 16 states have call predecessors, (23), 21 states have call successors, (23) [2021-11-19 14:36:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1881 transitions. [2021-11-19 14:36:53,925 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1881 transitions. Word has length 73 [2021-11-19 14:36:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:53,926 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 1881 transitions. [2021-11-19 14:36:53,926 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) [2021-11-19 14:36:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1881 transitions. [2021-11-19 14:36:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 14:36:53,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:53,927 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] [2021-11-19 14:36:53,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:54,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:54,143 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)] === [2021-11-19 14:36:54,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:54,143 INFO L85 PathProgramCache]: Analyzing trace with hash 816968073, now seen corresponding path program 1 times [2021-11-19 14:36:54,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:54,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658241427] [2021-11-19 14:36:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:54,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:54,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:54,145 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:36:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:54,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:36:54,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:54,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:54,499 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 [2021-11-19 14:36:54,534 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 [2021-11-19 14:36:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:54,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:54,782 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:54,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658241427] [2021-11-19 14:36:54,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658241427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:54,783 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:54,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 14:36:54,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959689685] [2021-11-19 14:36:54,787 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:54,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:36:54,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:36:54,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:36:54,789 INFO L87 Difference]: Start difference. First operand 1437 states and 1881 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) [2021-11-19 14:36:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:58,547 INFO L93 Difference]: Finished difference Result 1445 states and 1889 transitions. [2021-11-19 14:36:58,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:36:58,556 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 [2021-11-19 14:36:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:58,561 INFO L225 Difference]: With dead ends: 1445 [2021-11-19 14:36:58,562 INFO L226 Difference]: Without dead ends: 1445 [2021-11-19 14:36:58,562 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 [2021-11-19 14:36:58,563 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 [2021-11-19 14:36:58,563 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] [2021-11-19 14:36:58,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-11-19 14:36:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1444. [2021-11-19 14:36:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1041 states have (on average 1.7723342939481268) internal successors, (1845), 1416 states have internal predecessors, (1845), 21 states have call successors, (21), 12 states have call predecessors, (21), 9 states have return successors, (23), 16 states have call predecessors, (23), 21 states have call successors, (23) [2021-11-19 14:36:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1889 transitions. [2021-11-19 14:36:58,590 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1889 transitions. Word has length 80 [2021-11-19 14:36:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:58,591 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 1889 transitions. [2021-11-19 14:36:58,591 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) [2021-11-19 14:36:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1889 transitions. [2021-11-19 14:36:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 14:36:58,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:58,592 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] [2021-11-19 14:36:58,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:58,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:58,805 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)] === [2021-11-19 14:36:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash -443793445, now seen corresponding path program 1 times [2021-11-19 14:36:58,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:58,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472243248] [2021-11-19 14:36:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:58,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:58,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:58,807 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:58,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:36:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:59,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:36:59,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:59,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:36:59,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-19 14:36:59,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:36:59,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-19 14:36:59,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-19 14:36:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:36:59,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:00,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:00,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472243248] [2021-11-19 14:37:00,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472243248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:00,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:00,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-11-19 14:37:00,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223984500] [2021-11-19 14:37:00,240 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:00,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 14:37:00,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:00,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 14:37:00,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:37:00,242 INFO L87 Difference]: Start difference. First operand 1444 states and 1889 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) [2021-11-19 14:37:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:17,872 INFO L93 Difference]: Finished difference Result 1446 states and 1888 transitions. [2021-11-19 14:37:17,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:37:17,874 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 [2021-11-19 14:37:17,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:17,877 INFO L225 Difference]: With dead ends: 1446 [2021-11-19 14:37:17,878 INFO L226 Difference]: Without dead ends: 1446 [2021-11-19 14:37:17,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:37:17,879 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 49 mSDsluCounter, 5394 mSDsCounter, 0 mSdLazyCounter, 4035 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 6321 SdHoareTripleChecker+Invalid, 4043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:17,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 6321 Invalid, 4043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4035 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2021-11-19 14:37:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2021-11-19 14:37:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1444. [2021-11-19 14:37:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1041 states have (on average 1.771373679154659) internal successors, (1844), 1416 states have internal predecessors, (1844), 21 states have call successors, (21), 12 states have call predecessors, (21), 9 states have return successors, (23), 16 states have call predecessors, (23), 21 states have call successors, (23) [2021-11-19 14:37:17,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1888 transitions. [2021-11-19 14:37:17,909 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1888 transitions. Word has length 81 [2021-11-19 14:37:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:17,909 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 1888 transitions. [2021-11-19 14:37:17,910 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) [2021-11-19 14:37:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1888 transitions. [2021-11-19 14:37:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 14:37:17,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:17,911 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] [2021-11-19 14:37:17,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:18,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:18,125 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:37:18,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:18,126 INFO L85 PathProgramCache]: Analyzing trace with hash 540063607, now seen corresponding path program 1 times [2021-11-19 14:37:18,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:18,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496010159] [2021-11-19 14:37:18,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:18,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:18,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:18,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:18,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:37:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:18,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:37:18,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:18,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:18,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:18,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496010159] [2021-11-19 14:37:18,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496010159] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:18,781 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:18,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:37:18,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095621350] [2021-11-19 14:37:18,782 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:18,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:37:18,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:18,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:37:18,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:37:18,783 INFO L87 Difference]: Start difference. First operand 1444 states and 1888 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) [2021-11-19 14:37:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:18,986 INFO L93 Difference]: Finished difference Result 1456 states and 1901 transitions. [2021-11-19 14:37:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:37:18,987 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 [2021-11-19 14:37:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:18,991 INFO L225 Difference]: With dead ends: 1456 [2021-11-19 14:37:18,991 INFO L226 Difference]: Without dead ends: 1450 [2021-11-19 14:37:18,991 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 [2021-11-19 14:37:18,992 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 27 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4631 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:18,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 4631 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:37:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-11-19 14:37:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2021-11-19 14:37:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1046 states have (on average 1.768642447418738) internal successors, (1850), 1422 states have internal predecessors, (1850), 21 states have call successors, (21), 12 states have call predecessors, (21), 10 states have return successors, (24), 16 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-19 14:37:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1895 transitions. [2021-11-19 14:37:19,022 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1895 transitions. Word has length 88 [2021-11-19 14:37:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:19,023 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 1895 transitions. [2021-11-19 14:37:19,023 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) [2021-11-19 14:37:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1895 transitions. [2021-11-19 14:37:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-19 14:37:19,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:19,024 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] [2021-11-19 14:37:19,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-19 14:37:19,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:19,239 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:37:19,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1673703735, now seen corresponding path program 1 times [2021-11-19 14:37:19,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:19,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117675397] [2021-11-19 14:37:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:19,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:19,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:19,241 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:19,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:37:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:19,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:37:19,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:19,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:20,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:20,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117675397] [2021-11-19 14:37:20,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117675397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:20,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83128070] [2021-11-19 14:37:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:20,004 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:37:20,005 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:37:20,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-19 14:37:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:20,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:37:20,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:20,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:20,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [83128070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:20,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908071374] [2021-11-19 14:37:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:20,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:37:20,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:37:20,697 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:37:20,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-19 14:37:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:20,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:37:20,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:21,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:21,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908071374] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:21,458 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:37:21,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 17 [2021-11-19 14:37:21,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374720573] [2021-11-19 14:37:21,459 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:37:21,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 14:37:21,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 14:37:21,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:37:21,461 INFO L87 Difference]: Start difference. First operand 1450 states and 1895 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) [2021-11-19 14:37:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:22,008 INFO L93 Difference]: Finished difference Result 1468 states and 1916 transitions. [2021-11-19 14:37:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:37:22,009 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 [2021-11-19 14:37:22,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:22,011 INFO L225 Difference]: With dead ends: 1468 [2021-11-19 14:37:22,012 INFO L226 Difference]: Without dead ends: 1459 [2021-11-19 14:37:22,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=486, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:37:22,012 INFO L933 BasicCegarLoop]: 935 mSDtfsCounter, 72 mSDsluCounter, 7416 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:22,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 8351 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:37:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2021-11-19 14:37:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1456. [2021-11-19 14:37:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1052 states have (on average 1.765209125475285) internal successors, (1857), 1428 states have internal predecessors, (1857), 21 states have call successors, (21), 12 states have call predecessors, (21), 10 states have return successors, (24), 16 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-19 14:37:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1902 transitions. [2021-11-19 14:37:22,035 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1902 transitions. Word has length 90 [2021-11-19 14:37:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:22,035 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 1902 transitions. [2021-11-19 14:37:22,036 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) [2021-11-19 14:37:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1902 transitions. [2021-11-19 14:37:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:37:22,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:22,037 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] [2021-11-19 14:37:22,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:22,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:22,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:22,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:22,654 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 527 more)] === [2021-11-19 14:37:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash -583248713, now seen corresponding path program 2 times [2021-11-19 14:37:22,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:22,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334193956] [2021-11-19 14:37:22,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:37:22,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:22,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:22,656 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:22,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:37:23,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:37:23,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:37:23,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:37:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:23,458 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:23,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:24,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:24,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334193956] [2021-11-19 14:37:24,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334193956] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:24,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1272007919] [2021-11-19 14:37:24,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:37:24,125 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:24,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:37:24,126 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:37:24,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-19 14:37:25,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:37:25,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:37:25,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:37:25,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:25,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:37:25,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1272007919] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:25,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147095064] [2021-11-19 14:37:25,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:37:25,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:37:25,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:37:25,737 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:37:25,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f647634f-b759-4eea-b66f-3920819c2e10/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-19 14:38:00,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:38:00,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:38:00,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 14:38:00,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:01,225 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:38:01,225 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 14 treesize of output 14 [2021-11-19 14:38:01,285 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 [2021-11-19 14:39:40,702 WARN L227 SmtUtils]: Spent 24.79s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:39:40,703 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 14:39:40,704 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 [2021-11-19 14:39:41,368 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 14:39:41,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 40 [2021-11-19 14:39:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:41,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:44,188 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:39:44,188 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 [2021-11-19 14:44:17,791 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:44:17,792 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 [2021-11-19 14:44:20,917 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 [2021-11-19 14:44:23,738 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 [2021-11-19 14:45:04,283 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 [2021-11-19 14:45:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:45:04,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147095064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:45:04,303 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:45:04,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 18, 18] total 53 [2021-11-19 14:45:04,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402056515] [2021-11-19 14:45:04,304 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:45:04,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-19 14:45:04,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:45:04,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-19 14:45:04,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2188, Unknown=170, NotChecked=198, Total=2756 [2021-11-19 14:45:04,308 INFO L87 Difference]: Start difference. First operand 1456 states and 1902 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) [2021-11-19 14:45:10,214 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 [2021-11-19 14:45:12,256 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 [2021-11-19 14:46:43,562 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$.base|)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= |c_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ bv1 32)) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_115| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr269#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_119| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr269#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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 [2021-11-19 14:46:45,651 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 [2021-11-19 14:46:47,687 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 [2021-11-19 14:46:49,724 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 [2021-11-19 14:46:51,761 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 [2021-11-19 14:46:53,778 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 [2021-11-19 14:48:21,360 WARN L227 SmtUtils]: Spent 18.14s on a formula simplification that was a NOOP. DAG size: 86 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)