./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:01:03,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:01:03,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:01:03,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:01:03,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:01:03,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:01:03,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:01:03,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:01:03,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:01:03,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:01:03,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:01:03,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:01:03,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:01:03,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:01:03,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:01:03,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:01:03,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:01:03,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:01:03,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:01:03,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:01:03,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:01:03,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:01:03,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:01:03,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:01:03,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:01:03,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:01:03,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:01:03,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:01:03,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:01:03,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:01:03,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:01:03,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:01:03,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:01:03,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:01:03,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:01:03,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:01:03,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:01:03,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:01:03,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:01:03,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:01:03,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:01:03,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:01:03,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:01:03,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:01:03,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:01:03,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:01:03,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:01:03,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:01:03,643 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:01:03,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:01:03,644 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:01:03,644 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:01:03,645 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:01:03,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:01:03,646 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:01:03,646 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:01:03,646 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:01:03,647 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:01:03,647 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:01:03,648 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:01:03,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:01:03,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:01:03,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:01:03,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:01:03,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:01:03,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:01:03,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:01:03,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:01:03,652 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:01:03,652 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:01:03,653 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:01:03,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:01:03,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:01:03,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:01:03,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:01:03,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:01:03,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:01:03,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:01:03,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:01:03,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:01:03,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:01:03,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:01:03,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:01:03,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:01:03,657 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2021-11-21 00:01:03,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:01:03,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:01:03,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:01:03,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:01:03,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:01:03,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-21 00:01:04,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/c3bb45c92/8c7c6ed4a367468b8d45bb5427a91af8/FLAGec6192d6b [2021-11-21 00:01:04,656 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:01:04,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-21 00:01:04,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/c3bb45c92/8c7c6ed4a367468b8d45bb5427a91af8/FLAGec6192d6b [2021-11-21 00:01:04,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/c3bb45c92/8c7c6ed4a367468b8d45bb5427a91af8 [2021-11-21 00:01:04,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:01:04,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:01:04,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:01:04,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:01:04,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:01:04,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:04" (1/1) ... [2021-11-21 00:01:04,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f01471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:04, skipping insertion in model container [2021-11-21 00:01:04,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:04" (1/1) ... [2021-11-21 00:01:04,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:01:04,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:01:05,389 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-21 00:01:05,493 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-21 00:01:05,495 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-21 00:01:05,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:01:05,524 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-21 00:01:05,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3cb0a455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:05, skipping insertion in model container [2021-11-21 00:01:05,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:01:05,526 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:01:05,533 INFO L158 Benchmark]: Toolchain (without parser) took 658.30ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 48.6MB in the beginning and 76.7MB in the end (delta: -28.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-11-21 00:01:05,533 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:01:05,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.66ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 48.4MB in the beginning and 76.7MB in the end (delta: -28.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-11-21 00:01:05,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.66ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 48.4MB in the beginning and 76.7MB in the end (delta: -28.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:01:08,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:01:08,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:01:08,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:01:08,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:01:08,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:01:08,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:01:08,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:01:08,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:01:08,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:01:08,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:01:08,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:01:08,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:01:08,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:01:08,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:01:08,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:01:08,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:01:08,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:01:08,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:01:08,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:01:08,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:01:08,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:01:08,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:01:08,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:01:08,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:01:08,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:01:08,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:01:08,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:01:08,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:01:08,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:01:08,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:01:08,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:01:08,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:01:08,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:01:08,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:01:08,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:01:08,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:01:08,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:01:08,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:01:08,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:01:08,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:01:08,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:01:08,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:01:08,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:01:08,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:01:08,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:01:08,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:01:08,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:01:08,279 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:01:08,279 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:01:08,280 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:01:08,280 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:01:08,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:01:08,282 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:01:08,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:01:08,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:01:08,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:01:08,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:01:08,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:01:08,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:01:08,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:01:08,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:01:08,286 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:01:08,286 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:01:08,286 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:01:08,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:01:08,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:01:08,287 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:01:08,287 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:01:08,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:01:08,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:01:08,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:01:08,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:01:08,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:01:08,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:01:08,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:01:08,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:01:08,290 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:01:08,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:01:08,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:01:08,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:01:08,291 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2021-11-21 00:01:08,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:01:08,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:01:08,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:01:08,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:01:08,759 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:01:08,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-21 00:01:08,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/361016ac6/04060fadd35248a9bf67f95288d2546e/FLAGc64d0f11b [2021-11-21 00:01:09,755 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:01:09,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-21 00:01:09,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/361016ac6/04060fadd35248a9bf67f95288d2546e/FLAGc64d0f11b [2021-11-21 00:01:09,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/data/361016ac6/04060fadd35248a9bf67f95288d2546e [2021-11-21 00:01:09,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:01:09,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:01:09,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:01:09,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:01:09,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:01:09,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:09" (1/1) ... [2021-11-21 00:01:09,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320eb0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:09, skipping insertion in model container [2021-11-21 00:01:09,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:09" (1/1) ... [2021-11-21 00:01:09,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:01:10,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:01:10,535 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-21 00:01:10,652 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-21 00:01:10,654 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-21 00:01:10,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:01:10,692 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:01:10,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:01:10,731 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-21 00:01:10,805 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-21 00:01:10,807 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-21 00:01:10,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:01:10,854 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:01:10,922 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-21 00:01:10,995 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-21 00:01:10,997 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_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-21 00:01:11,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:01:11,077 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:01:11,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11 WrapperNode [2021-11-21 00:01:11,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:01:11,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:01:11,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:01:11,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:01:11,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,282 INFO L137 Inliner]: procedures = 179, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1175 [2021-11-21 00:01:11,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:01:11,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:01:11,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:01:11,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:01:11,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:01:11,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:01:11,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:01:11,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:01:11,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (1/1) ... [2021-11-21 00:01:11,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:01:11,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:01:11,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:01:11,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:01:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 00:01:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:01:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:01:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:01:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:01:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:01:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:01:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:01:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:01:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:01:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:01:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:01:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:01:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:01:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:01:11,814 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:01:11,829 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:01:11,835 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 00:01:18,094 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:01:18,109 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:01:18,109 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 00:01:18,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:18 BoogieIcfgContainer [2021-11-21 00:01:18,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:01:18,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:01:18,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:01:18,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:01:18,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:01:09" (1/3) ... [2021-11-21 00:01:18,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b89ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:18, skipping insertion in model container [2021-11-21 00:01:18,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:11" (2/3) ... [2021-11-21 00:01:18,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b89ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:18, skipping insertion in model container [2021-11-21 00:01:18,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:18" (3/3) ... [2021-11-21 00:01:18,122 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-2.i [2021-11-21 00:01:18,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:01:18,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 635 error locations. [2021-11-21 00:01:18,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:01:18,187 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:01:18,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 635 error locations. [2021-11-21 00:01:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 1249 states, 612 states have (on average 2.2663398692810457) internal successors, (1387), 1244 states have internal predecessors, (1387), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:18,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:01:18,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:18,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:01:18,236 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:18,243 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-11-21 00:01:18,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624156274] [2021-11-21 00:01:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:18,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:18,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:18,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:01:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:18,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:01:18,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:18,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:18,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:18,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:18,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624156274] [2021-11-21 00:01:18,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624156274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:18,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:18,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:01:18,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927291828] [2021-11-21 00:01:18,608 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:18,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:01:18,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:18,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:01:18,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:01:18,645 INFO L87 Difference]: Start difference. First operand has 1249 states, 612 states have (on average 2.2663398692810457) internal successors, (1387), 1244 states have internal predecessors, (1387), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:21,257 INFO L93 Difference]: Finished difference Result 1417 states and 1492 transitions. [2021-11-21 00:01:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:01:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-21 00:01:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:21,282 INFO L225 Difference]: With dead ends: 1417 [2021-11-21 00:01:21,282 INFO L226 Difference]: Without dead ends: 1415 [2021-11-21 00:01:21,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:01:21,287 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 1160 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:21,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 893 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 00:01:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2021-11-21 00:01:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1230. [2021-11-21 00:01:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 610 states have (on average 2.1163934426229507) internal successors, (1291), 1225 states have internal predecessors, (1291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1297 transitions. [2021-11-21 00:01:21,393 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1297 transitions. Word has length 3 [2021-11-21 00:01:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:21,394 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1297 transitions. [2021-11-21 00:01:21,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1297 transitions. [2021-11-21 00:01:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:01:21,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:21,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:01:21,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:21,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:21,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-11-21 00:01:21,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:21,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186462814] [2021-11-21 00:01:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:21,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:21,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:21,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:21,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:01:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:21,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:21,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:21,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:21,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:21,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:21,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186462814] [2021-11-21 00:01:21,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186462814] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:21,969 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:21,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:01:21,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247896677] [2021-11-21 00:01:21,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:21,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:21,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:21,972 INFO L87 Difference]: Start difference. First operand 1230 states and 1297 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:27,673 INFO L93 Difference]: Finished difference Result 1894 states and 2004 transitions. [2021-11-21 00:01:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:27,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-21 00:01:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:27,684 INFO L225 Difference]: With dead ends: 1894 [2021-11-21 00:01:27,684 INFO L226 Difference]: Without dead ends: 1894 [2021-11-21 00:01:27,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:27,686 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 1545 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:27,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 1760 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-21 00:01:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2021-11-21 00:01:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1265. [2021-11-21 00:01:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 654 states have (on average 2.09480122324159) internal successors, (1370), 1260 states have internal predecessors, (1370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1376 transitions. [2021-11-21 00:01:27,728 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1376 transitions. Word has length 3 [2021-11-21 00:01:27,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:27,729 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1376 transitions. [2021-11-21 00:01:27,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1376 transitions. [2021-11-21 00:01:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:01:27,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:27,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:27,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:27,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:27,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2021-11-21 00:01:27,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:27,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554923174] [2021-11-21 00:01:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:27,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:27,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:27,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:27,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:01:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:28,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:01:28,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:28,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:28,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:28,151 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:28,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554923174] [2021-11-21 00:01:28,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554923174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:28,151 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:28,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:01:28,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899888564] [2021-11-21 00:01:28,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:28,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:01:28,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:28,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:01:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:01:28,153 INFO L87 Difference]: Start difference. First operand 1265 states and 1376 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:30,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:30,531 INFO L93 Difference]: Finished difference Result 1595 states and 1731 transitions. [2021-11-21 00:01:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:01:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:01:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:30,543 INFO L225 Difference]: With dead ends: 1595 [2021-11-21 00:01:30,543 INFO L226 Difference]: Without dead ends: 1595 [2021-11-21 00:01:30,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:01:30,545 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 975 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:30,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1479 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 00:01:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2021-11-21 00:01:30,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1218. [2021-11-21 00:01:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 654 states have (on average 2.018348623853211) internal successors, (1320), 1213 states have internal predecessors, (1320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1326 transitions. [2021-11-21 00:01:30,579 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1326 transitions. Word has length 8 [2021-11-21 00:01:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:30,579 INFO L470 AbstractCegarLoop]: Abstraction has 1218 states and 1326 transitions. [2021-11-21 00:01:30,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1326 transitions. [2021-11-21 00:01:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:01:30,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:30,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:30,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:30,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:30,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:30,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2021-11-21 00:01:30,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:30,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585494691] [2021-11-21 00:01:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:30,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:30,797 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:30,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:01:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:30,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:30,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:30,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:30,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:31,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:31,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585494691] [2021-11-21 00:01:31,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585494691] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:31,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:31,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:01:31,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264841325] [2021-11-21 00:01:31,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:31,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:31,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:31,059 INFO L87 Difference]: Start difference. First operand 1218 states and 1326 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:35,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:35,330 INFO L93 Difference]: Finished difference Result 1639 states and 1739 transitions. [2021-11-21 00:01:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:35,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:01:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:35,338 INFO L225 Difference]: With dead ends: 1639 [2021-11-21 00:01:35,338 INFO L226 Difference]: Without dead ends: 1639 [2021-11-21 00:01:35,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:35,339 INFO L933 BasicCegarLoop]: 1309 mSDtfsCounter, 1392 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:35,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 1824 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 00:01:35,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2021-11-21 00:01:35,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1208. [2021-11-21 00:01:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 654 states have (on average 1.9984709480122325) internal successors, (1307), 1203 states have internal predecessors, (1307), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:35,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1313 transitions. [2021-11-21 00:01:35,372 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1313 transitions. Word has length 8 [2021-11-21 00:01:35,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:35,372 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1313 transitions. [2021-11-21 00:01:35,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:35,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1313 transitions. [2021-11-21 00:01:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:01:35,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:35,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:35,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:35,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:35,585 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr526ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:35,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash 871378613, now seen corresponding path program 1 times [2021-11-21 00:01:35,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:35,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323956753] [2021-11-21 00:01:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:35,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:35,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:35,587 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:35,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:01:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:35,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:01:35,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:35,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:35,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:35,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323956753] [2021-11-21 00:01:35,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323956753] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:35,915 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:35,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:01:35,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682072777] [2021-11-21 00:01:35,916 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:35,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:35,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:35,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:35,917 INFO L87 Difference]: Start difference. First operand 1208 states and 1313 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:36,868 INFO L93 Difference]: Finished difference Result 1851 states and 1998 transitions. [2021-11-21 00:01:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:01:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:01:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:36,879 INFO L225 Difference]: With dead ends: 1851 [2021-11-21 00:01:36,879 INFO L226 Difference]: Without dead ends: 1851 [2021-11-21 00:01:36,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:01:36,881 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 754 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:36,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 3651 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:01:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2021-11-21 00:01:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1449. [2021-11-21 00:01:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 895 states have (on average 1.9687150837988827) internal successors, (1762), 1444 states have internal predecessors, (1762), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1768 transitions. [2021-11-21 00:01:36,920 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1768 transitions. Word has length 11 [2021-11-21 00:01:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:36,921 INFO L470 AbstractCegarLoop]: Abstraction has 1449 states and 1768 transitions. [2021-11-21 00:01:36,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1768 transitions. [2021-11-21 00:01:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:01:36,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:36,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:36,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:37,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:37,134 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:37,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:37,136 INFO L85 PathProgramCache]: Analyzing trace with hash -702153283, now seen corresponding path program 1 times [2021-11-21 00:01:37,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:37,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515929902] [2021-11-21 00:01:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:37,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:37,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:37,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:37,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:01:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:37,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:01:37,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:37,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:37,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:37,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515929902] [2021-11-21 00:01:37,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515929902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:37,342 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:37,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:01:37,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839482857] [2021-11-21 00:01:37,343 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:37,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:37,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:37,344 INFO L87 Difference]: Start difference. First operand 1449 states and 1768 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:37,395 INFO L93 Difference]: Finished difference Result 1611 states and 1916 transitions. [2021-11-21 00:01:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:01:37,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 13 [2021-11-21 00:01:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:37,404 INFO L225 Difference]: With dead ends: 1611 [2021-11-21 00:01:37,405 INFO L226 Difference]: Without dead ends: 1611 [2021-11-21 00:01:37,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:37,408 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 583 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:37,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 2820 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:01:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2021-11-21 00:01:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1389. [2021-11-21 00:01:37,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 859 states have (on average 1.951105937136205) internal successors, (1676), 1384 states have internal predecessors, (1676), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1682 transitions. [2021-11-21 00:01:37,447 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1682 transitions. Word has length 13 [2021-11-21 00:01:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:37,448 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 1682 transitions. [2021-11-21 00:01:37,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:37,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1682 transitions. [2021-11-21 00:01:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 00:01:37,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:37,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:37,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:37,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:37,664 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:37,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:37,665 INFO L85 PathProgramCache]: Analyzing trace with hash -459414345, now seen corresponding path program 1 times [2021-11-21 00:01:37,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:37,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635830754] [2021-11-21 00:01:37,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:37,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:37,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:37,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:37,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:01:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:37,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:37,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:37,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:37,886 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:37,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635830754] [2021-11-21 00:01:37,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635830754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:37,887 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:37,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:01:37,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909817426] [2021-11-21 00:01:37,887 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:37,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:01:37,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:37,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:01:37,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:01:37,889 INFO L87 Difference]: Start difference. First operand 1389 states and 1682 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:37,967 INFO L93 Difference]: Finished difference Result 1583 states and 1860 transitions. [2021-11-21 00:01:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:37,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 15 [2021-11-21 00:01:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:37,974 INFO L225 Difference]: With dead ends: 1583 [2021-11-21 00:01:37,974 INFO L226 Difference]: Without dead ends: 1583 [2021-11-21 00:01:37,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:01:37,976 INFO L933 BasicCegarLoop]: 1139 mSDtfsCounter, 554 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:37,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 3907 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:01:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2021-11-21 00:01:38,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1359. [2021-11-21 00:01:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 843 states have (on average 1.9193357058125742) internal successors, (1618), 1354 states have internal predecessors, (1618), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:38,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1624 transitions. [2021-11-21 00:01:38,012 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1624 transitions. Word has length 15 [2021-11-21 00:01:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:38,013 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1624 transitions. [2021-11-21 00:01:38,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1624 transitions. [2021-11-21 00:01:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:01:38,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:38,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:38,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:38,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:38,225 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr634ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2058395604, now seen corresponding path program 1 times [2021-11-21 00:01:38,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:38,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951591055] [2021-11-21 00:01:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:38,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:38,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:38,227 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:38,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 00:01:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:38,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:38,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:38,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:01:38,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:01:38,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:01:38,474 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-21 00:01:38,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-21 00:01:38,548 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-21 00:01:38,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-21 00:01:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:38,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:38,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951591055] [2021-11-21 00:01:38,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951591055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:38,679 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:38,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:01:38,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616662798] [2021-11-21 00:01:38,680 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:38,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:01:38,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:38,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:01:38,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:01:38,681 INFO L87 Difference]: Start difference. First operand 1359 states and 1624 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:40,709 INFO L93 Difference]: Finished difference Result 1795 states and 2119 transitions. [2021-11-21 00:01:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 16 [2021-11-21 00:01:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:40,716 INFO L225 Difference]: With dead ends: 1795 [2021-11-21 00:01:40,716 INFO L226 Difference]: Without dead ends: 1795 [2021-11-21 00:01:40,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:01:40,717 INFO L933 BasicCegarLoop]: 1108 mSDtfsCounter, 424 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:40,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 5312 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 00:01:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-21 00:01:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1358. [2021-11-21 00:01:40,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 842 states have (on average 1.9192399049881235) internal successors, (1616), 1353 states have internal predecessors, (1616), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1622 transitions. [2021-11-21 00:01:40,751 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1622 transitions. Word has length 16 [2021-11-21 00:01:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:40,751 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 1622 transitions. [2021-11-21 00:01:40,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1622 transitions. [2021-11-21 00:01:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:01:40,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:40,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:40,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:40,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:40,964 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:40,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2021-11-21 00:01:40,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:40,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912532320] [2021-11-21 00:01:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:40,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:40,967 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:41,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 00:01:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:41,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:01:41,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:41,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:41,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:41,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912532320] [2021-11-21 00:01:41,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912532320] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:41,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:41,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:01:41,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537696883] [2021-11-21 00:01:41,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:41,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:41,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:41,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:41,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:41,246 INFO L87 Difference]: Start difference. First operand 1358 states and 1622 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:41,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:41,286 INFO L93 Difference]: Finished difference Result 1298 states and 1536 transitions. [2021-11-21 00:01:41,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:01:41,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 00:01:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:41,293 INFO L225 Difference]: With dead ends: 1298 [2021-11-21 00:01:41,293 INFO L226 Difference]: Without dead ends: 1298 [2021-11-21 00:01:41,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:41,294 INFO L933 BasicCegarLoop]: 1105 mSDtfsCounter, 2178 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:41,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 1127 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:01:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2021-11-21 00:01:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1298. [2021-11-21 00:01:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 806 states have (on average 1.8982630272952854) internal successors, (1530), 1293 states have internal predecessors, (1530), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1536 transitions. [2021-11-21 00:01:41,322 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1536 transitions. Word has length 18 [2021-11-21 00:01:41,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:41,323 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1536 transitions. [2021-11-21 00:01:41,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1536 transitions. [2021-11-21 00:01:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:01:41,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:41,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:41,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:41,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:41,536 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:41,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2021-11-21 00:01:41,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:41,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084932601] [2021-11-21 00:01:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:41,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:41,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:41,538 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:41,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 00:01:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:41,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:41,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:41,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:41,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:41,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084932601] [2021-11-21 00:01:41,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084932601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:41,805 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:41,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:01:41,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360833142] [2021-11-21 00:01:41,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:41,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:01:41,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:01:41,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:01:41,807 INFO L87 Difference]: Start difference. First operand 1298 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:41,891 INFO L93 Difference]: Finished difference Result 1270 states and 1480 transitions. [2021-11-21 00:01:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 00:01:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:41,899 INFO L225 Difference]: With dead ends: 1270 [2021-11-21 00:01:41,899 INFO L226 Difference]: Without dead ends: 1270 [2021-11-21 00:01:41,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:01:41,900 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 2110 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:41,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 2135 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:01:41,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2021-11-21 00:01:41,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1268. [2021-11-21 00:01:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 790 states have (on average 1.8632911392405063) internal successors, (1472), 1263 states have internal predecessors, (1472), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1478 transitions. [2021-11-21 00:01:41,927 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1478 transitions. Word has length 20 [2021-11-21 00:01:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:41,928 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 1478 transitions. [2021-11-21 00:01:41,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:41,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1478 transitions. [2021-11-21 00:01:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:01:41,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:41,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:41,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-21 00:01:42,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:42,142 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531686, now seen corresponding path program 1 times [2021-11-21 00:01:42,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:42,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328484881] [2021-11-21 00:01:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:42,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:42,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:42,145 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 00:01:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:42,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:42,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:42,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:42,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:42,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:42,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328484881] [2021-11-21 00:01:42,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328484881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:42,579 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:42,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:01:42,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945622350] [2021-11-21 00:01:42,579 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:42,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:42,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:42,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:42,583 INFO L87 Difference]: Start difference. First operand 1268 states and 1478 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:45,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:45,339 INFO L93 Difference]: Finished difference Result 1850 states and 2182 transitions. [2021-11-21 00:01:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:01:45,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 00:01:45,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:45,347 INFO L225 Difference]: With dead ends: 1850 [2021-11-21 00:01:45,348 INFO L226 Difference]: Without dead ends: 1850 [2021-11-21 00:01:45,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:01:45,348 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1719 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:45,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1719 Valid, 1222 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 00:01:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-21 00:01:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1264. [2021-11-21 00:01:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 790 states have (on average 1.8531645569620254) internal successors, (1464), 1259 states have internal predecessors, (1464), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1470 transitions. [2021-11-21 00:01:45,390 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1470 transitions. Word has length 34 [2021-11-21 00:01:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:45,391 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1470 transitions. [2021-11-21 00:01:45,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1470 transitions. [2021-11-21 00:01:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:01:45,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:45,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:45,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:01:45,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:45,605 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:45,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:45,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531687, now seen corresponding path program 1 times [2021-11-21 00:01:45,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:45,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947886293] [2021-11-21 00:01:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:45,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:45,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:45,607 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:45,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 00:01:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:45,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:01:45,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:45,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:46,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:46,488 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:46,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947886293] [2021-11-21 00:01:46,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947886293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:46,488 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:46,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:01:46,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195010560] [2021-11-21 00:01:46,488 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:46,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:01:46,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:46,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:01:46,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:01:46,490 INFO L87 Difference]: Start difference. First operand 1264 states and 1470 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:54,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:54,086 INFO L93 Difference]: Finished difference Result 1977 states and 2286 transitions. [2021-11-21 00:01:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:01:54,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 00:01:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:54,094 INFO L225 Difference]: With dead ends: 1977 [2021-11-21 00:01:54,094 INFO L226 Difference]: Without dead ends: 1977 [2021-11-21 00:01:54,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:01:54,095 INFO L933 BasicCegarLoop]: 1357 mSDtfsCounter, 2009 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:01:54,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2009 Valid, 3001 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:01:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2021-11-21 00:01:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1260. [2021-11-21 00:01:54,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 790 states have (on average 1.8430379746835444) internal successors, (1456), 1255 states have internal predecessors, (1456), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1462 transitions. [2021-11-21 00:01:54,118 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1462 transitions. Word has length 34 [2021-11-21 00:01:54,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:54,119 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 1462 transitions. [2021-11-21 00:01:54,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:54,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1462 transitions. [2021-11-21 00:01:54,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 00:01:54,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:54,121 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] [2021-11-21 00:01:54,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-21 00:01:54,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:54,333 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:54,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:54,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1509555205, now seen corresponding path program 1 times [2021-11-21 00:01:54,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:54,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791401818] [2021-11-21 00:01:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:54,334 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:54,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:54,335 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:54,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 00:01:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:54,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:01:54,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:54,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:01:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:54,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:01:54,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791401818] [2021-11-21 00:01:54,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791401818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:01:54,807 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:01:54,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:01:54,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273759221] [2021-11-21 00:01:54,807 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:01:54,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:01:54,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:01:54,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:01:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:01:54,808 INFO L87 Difference]: Start difference. First operand 1260 states and 1462 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:01:54,868 INFO L93 Difference]: Finished difference Result 1248 states and 1442 transitions. [2021-11-21 00:01:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:01:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2021-11-21 00:01:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:01:54,875 INFO L225 Difference]: With dead ends: 1248 [2021-11-21 00:01:54,875 INFO L226 Difference]: Without dead ends: 1248 [2021-11-21 00:01:54,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:01:54,876 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 1036 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 2113 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 [2021-11-21 00:01:54,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 2113 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:01:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2021-11-21 00:01:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2021-11-21 00:01:54,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 778 states have (on average 1.845758354755784) internal successors, (1436), 1243 states have internal predecessors, (1436), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:01:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1442 transitions. [2021-11-21 00:01:54,898 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1442 transitions. Word has length 52 [2021-11-21 00:01:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:01:54,898 INFO L470 AbstractCegarLoop]: Abstraction has 1248 states and 1442 transitions. [2021-11-21 00:01:54,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:01:54,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1442 transitions. [2021-11-21 00:01:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-21 00:01:54,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:01:54,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:01:54,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-21 00:01:55,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:01:55,118 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:01:55,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:01:55,118 INFO L85 PathProgramCache]: Analyzing trace with hash -881686959, now seen corresponding path program 1 times [2021-11-21 00:01:55,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:01:55,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15190048] [2021-11-21 00:01:55,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:01:55,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:01:55,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:01:55,120 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:01:55,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 00:01:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:01:55,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:01:55,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:01:55,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:55,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:01:56,153 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:01:56,153 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 24 treesize of output 26 [2021-11-21 00:01:56,175 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:01:56,175 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 23 treesize of output 19 [2021-11-21 00:01:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:01:56,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:01,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:01,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15190048] [2021-11-21 00:02:01,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15190048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:01,286 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:01,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:02:01,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141054713] [2021-11-21 00:02:01,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:01,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:02:01,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:02:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-21 00:02:01,288 INFO L87 Difference]: Start difference. First operand 1248 states and 1442 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:07,017 INFO L93 Difference]: Finished difference Result 1795 states and 2079 transitions. [2021-11-21 00:02:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:02:07,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-21 00:02:07,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:07,025 INFO L225 Difference]: With dead ends: 1795 [2021-11-21 00:02:07,025 INFO L226 Difference]: Without dead ends: 1795 [2021-11-21 00:02:07,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-21 00:02:07,026 INFO L933 BasicCegarLoop]: 830 mSDtfsCounter, 1326 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1580 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:07,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 2161 Invalid, 3195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1574 Invalid, 0 Unknown, 1580 Unchecked, 5.6s Time] [2021-11-21 00:02:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-21 00:02:07,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1226. [2021-11-21 00:02:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 788 states have (on average 1.8045685279187818) internal successors, (1422), 1221 states have internal predecessors, (1422), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:02:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1428 transitions. [2021-11-21 00:02:07,049 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1428 transitions. Word has length 60 [2021-11-21 00:02:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:07,050 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 1428 transitions. [2021-11-21 00:02:07,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1428 transitions. [2021-11-21 00:02:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:02:07,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:07,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:07,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-21 00:02:07,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:02:07,266 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1192602638, now seen corresponding path program 1 times [2021-11-21 00:02:07,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:07,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145379015] [2021-11-21 00:02:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:07,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:07,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:07,269 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:07,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 00:02:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:07,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:02:07,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:07,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:07,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-21 00:02:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:08,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:08,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145379015] [2021-11-21 00:02:08,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145379015] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:08,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:08,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:02:08,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724921836] [2021-11-21 00:02:08,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:08,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:02:08,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:02:08,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:02:08,064 INFO L87 Difference]: Start difference. First operand 1226 states and 1428 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:10,804 INFO L93 Difference]: Finished difference Result 1224 states and 1426 transitions. [2021-11-21 00:02:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:02:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-21 00:02:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:10,812 INFO L225 Difference]: With dead ends: 1224 [2021-11-21 00:02:10,812 INFO L226 Difference]: Without dead ends: 1224 [2021-11-21 00:02:10,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:02:10,813 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 813 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:10,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 1092 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 00:02:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-11-21 00:02:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2021-11-21 00:02:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 788 states have (on average 1.8020304568527918) internal successors, (1420), 1219 states have internal predecessors, (1420), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:02:10,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1426 transitions. [2021-11-21 00:02:10,831 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1426 transitions. Word has length 62 [2021-11-21 00:02:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:10,831 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1426 transitions. [2021-11-21 00:02:10,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:10,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1426 transitions. [2021-11-21 00:02:10,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:02:10,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:10,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:10,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-21 00:02:11,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:02:11,046 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:11,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:11,047 INFO L85 PathProgramCache]: Analyzing trace with hash -855470841, now seen corresponding path program 1 times [2021-11-21 00:02:11,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:11,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449859551] [2021-11-21 00:02:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:11,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:11,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:11,048 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:11,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 00:02:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:11,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:02:11,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:11,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:02:11,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 00:02:11,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-21 00:02:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:11,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:11,516 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449859551] [2021-11-21 00:02:11,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449859551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:11,516 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:11,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:02:11,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415219330] [2021-11-21 00:02:11,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:11,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:02:11,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:11,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:02:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:02:11,518 INFO L87 Difference]: Start difference. First operand 1224 states and 1426 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:14,799 INFO L93 Difference]: Finished difference Result 1223 states and 1425 transitions. [2021-11-21 00:02:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:02:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-21 00:02:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:14,807 INFO L225 Difference]: With dead ends: 1223 [2021-11-21 00:02:14,807 INFO L226 Difference]: Without dead ends: 1223 [2021-11-21 00:02:14,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:02:14,809 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 4 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:14,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2584 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 00:02:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-21 00:02:14,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2021-11-21 00:02:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 788 states have (on average 1.8007614213197969) internal successors, (1419), 1218 states have internal predecessors, (1419), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:02:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1425 transitions. [2021-11-21 00:02:14,826 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1425 transitions. Word has length 65 [2021-11-21 00:02:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:14,827 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1425 transitions. [2021-11-21 00:02:14,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1425 transitions. [2021-11-21 00:02:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:02:14,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:14,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:14,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-21 00:02:15,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:02:15,057 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash -855470840, now seen corresponding path program 1 times [2021-11-21 00:02:15,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:15,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918562380] [2021-11-21 00:02:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:15,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:15,059 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:15,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-21 00:02:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:15,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:02:15,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:15,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:02:15,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-21 00:02:15,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:02:15,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-21 00:02:15,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-21 00:02:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:15,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:15,791 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:15,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918562380] [2021-11-21 00:02:15,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918562380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:15,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:15,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 00:02:15,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098514966] [2021-11-21 00:02:15,792 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:15,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:02:15,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:15,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:02:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:02:15,793 INFO L87 Difference]: Start difference. First operand 1223 states and 1425 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:27,621 INFO L93 Difference]: Finished difference Result 1222 states and 1424 transitions. [2021-11-21 00:02:27,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:02:27,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-21 00:02:27,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:27,628 INFO L225 Difference]: With dead ends: 1222 [2021-11-21 00:02:27,629 INFO L226 Difference]: Without dead ends: 1222 [2021-11-21 00:02:27,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:02:27,630 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 3 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:27,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3713 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2021-11-21 00:02:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-21 00:02:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-21 00:02:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 787 states have (on average 1.8017789072426937) internal successors, (1418), 1217 states have internal predecessors, (1418), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:02:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1424 transitions. [2021-11-21 00:02:27,656 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1424 transitions. Word has length 65 [2021-11-21 00:02:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:27,657 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1424 transitions. [2021-11-21 00:02:27,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:02:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1424 transitions. [2021-11-21 00:02:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:02:27,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:27,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:27,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-21 00:02:27,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:02:27,876 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1088613615, now seen corresponding path program 1 times [2021-11-21 00:02:27,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:27,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127865465] [2021-11-21 00:02:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:27,877 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:27,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:27,879 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:27,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-21 00:02:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:28,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:02:28,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:28,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:28,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:28,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127865465] [2021-11-21 00:02:28,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127865465] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:28,482 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:28,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:02:28,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601975548] [2021-11-21 00:02:28,482 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:28,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:02:28,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:02:28,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:02:28,483 INFO L87 Difference]: Start difference. First operand 1222 states and 1424 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:02:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:28,598 INFO L93 Difference]: Finished difference Result 1232 states and 1437 transitions. [2021-11-21 00:02:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:02:28,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-21 00:02:28,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:28,608 INFO L225 Difference]: With dead ends: 1232 [2021-11-21 00:02:28,608 INFO L226 Difference]: Without dead ends: 1232 [2021-11-21 00:02:28,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:02:28,609 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 11 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 3048 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:02:28,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-21 00:02:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2021-11-21 00:02:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 795 states have (on average 1.79874213836478) internal successors, (1430), 1226 states have internal predecessors, (1430), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:02:28,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1437 transitions. [2021-11-21 00:02:28,641 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1437 transitions. Word has length 73 [2021-11-21 00:02:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:28,641 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1437 transitions. [2021-11-21 00:02:28,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:02:28,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1437 transitions. [2021-11-21 00:02:28,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 00:02:28,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:28,643 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:28,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-21 00:02:28,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:02:28,863 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:28,864 INFO L85 PathProgramCache]: Analyzing trace with hash 973507983, now seen corresponding path program 1 times [2021-11-21 00:02:28,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:28,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97164021] [2021-11-21 00:02:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:28,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:28,866 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:28,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-21 00:02:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:29,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:02:29,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:29,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:29,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:29,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97164021] [2021-11-21 00:02:29,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97164021] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:02:29,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1727573597] [2021-11-21 00:02:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:29,636 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:02:29,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:02:29,638 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:02:29,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-21 00:02:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:29,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:02:29,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:30,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:30,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1727573597] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:02:30,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666136857] [2021-11-21 00:02:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:30,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:02:30,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:02:30,268 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:02:30,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-21 00:02:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:30,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:02:30,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:30,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:30,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666136857] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:02:30,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:02:30,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-21 00:02:30,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412299806] [2021-11-21 00:02:30,990 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:02:30,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 00:02:30,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:02:30,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 00:02:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:02:30,992 INFO L87 Difference]: Start difference. First operand 1232 states and 1437 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:02:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:31,535 INFO L93 Difference]: Finished difference Result 1246 states and 1454 transitions. [2021-11-21 00:02:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 00:02:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-21 00:02:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:31,541 INFO L225 Difference]: With dead ends: 1246 [2021-11-21 00:02:31,542 INFO L226 Difference]: Without dead ends: 1240 [2021-11-21 00:02:31,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-21 00:02:31,543 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 40 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 6094 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:31,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 6094 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:02:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2021-11-21 00:02:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1238. [2021-11-21 00:02:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 801 states have (on average 1.794007490636704) internal successors, (1437), 1232 states have internal predecessors, (1437), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:02:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1444 transitions. [2021-11-21 00:02:31,572 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1444 transitions. Word has length 75 [2021-11-21 00:02:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:31,572 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1444 transitions. [2021-11-21 00:02:31,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:02:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1444 transitions. [2021-11-21 00:02:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-21 00:02:31,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:31,574 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:02:31,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-21 00:02:31,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-21 00:02:32,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-21 00:02:32,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:02:32,180 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:02:32,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:32,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1648945, now seen corresponding path program 2 times [2021-11-21 00:02:32,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:02:32,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138898646] [2021-11-21 00:02:32,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:02:32,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:02:32,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:02:32,182 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:02:32,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-21 00:02:32,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:02:32,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:02:32,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:02:32,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:32,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:33,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:02:33,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138898646] [2021-11-21 00:02:33,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138898646] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:02:33,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2010494473] [2021-11-21 00:02:33,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:02:33,420 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:02:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:02:33,421 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:02:33,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-21 00:02:34,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:02:34,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:02:34,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:02:34,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:02:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:34,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:02:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:34,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2010494473] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:02:34,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166239753] [2021-11-21 00:02:34,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:02:34,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:02:34,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:02:34,631 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:02:34,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-21 00:03:00,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:03:00,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:03:00,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-21 00:03:00,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:03:00,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:03:01,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:03:01,274 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:03:01,275 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 [2021-11-21 00:03:01,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:03:01,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-21 00:03:01,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-21 00:03:01,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-21 00:05:37,045 WARN L227 SmtUtils]: Spent 45.71s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:05:37,046 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 00:05:37,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 135 [2021-11-21 00:06:19,433 WARN L227 SmtUtils]: Spent 42.37s on a formula simplification. DAG size of input: 118 DAG size of output: 38 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:06:19,434 INFO L354 Elim1Store]: treesize reduction 1178, result has 7.5 percent of original size [2021-11-21 00:06:19,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 226 [2021-11-21 00:06:25,011 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:06:25,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 241 treesize of output 118 [2021-11-21 00:06:25,035 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:06:25,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 46 [2021-11-21 00:06:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:35,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:50,972 WARN L227 SmtUtils]: Spent 14.31s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-21 00:08:05,253 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse8 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse9 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3) .cse8 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse11 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse10 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11))))) (forall ((|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse12 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse12) (bvadd (_ bv20 32) .cse12))))))) is different from false [2021-11-21 00:08:10,431 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (and (forall ((v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse0 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse3 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3))))) (forall ((v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse5) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd (_ bv20 32) .cse4))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse6 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse7) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse7) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse6) (bvadd (_ bv20 32) .cse6))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse8 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse10 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse11 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse12 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse15 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 .cse9) .cse10 .cse9) .cse11 .cse9) .cse12 .cse9) .cse13 .cse9) .cse14 .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15)))))))) is different from false [2021-11-21 00:10:45,408 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8))))) (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse10))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse9) (bvadd .cse9 (_ bv20 32)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse11 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 .cse12) .cse13 .cse12) .cse14 .cse12) .cse15 .cse12) .cse16 .cse12) .cse17 .cse12))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)))))))) is different from false [2021-11-21 00:10:47,417 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8))))) (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse10))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse9) (bvadd .cse9 (_ bv20 32)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse11 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 .cse12) .cse13 .cse12) .cse14 .cse12) .cse15 .cse12) .cse16 .cse12) .cse17 .cse12))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)))))))) is different from true [2021-11-21 00:10:54,245 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse2) (bvadd .cse2 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse4 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse6 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse7 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse8 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse9 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse10 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse11 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse4 .cse5) .cse6 .cse5) .cse7 .cse5) .cse8 .cse5) .cse9 .cse5) .cse10 .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse12 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse19 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13) .cse18 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32)) .cse18 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)))))))) is different from false [2021-11-21 00:10:56,253 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse2) (bvadd .cse2 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse4 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse6 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse7 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse8 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse9 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse10 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse11 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse4 .cse5) .cse6 .cse5) .cse7 .cse5) .cse8 .cse5) .cse9 .cse5) .cse10 .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse12 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse19 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13) .cse18 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32)) .cse18 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)))))))) is different from true [2021-11-21 00:11:43,711 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:11:43,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2021-11-21 00:11:43,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2021-11-21 00:11:43,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093840575] [2021-11-21 00:11:43,712 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2021-11-21 00:11:43,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 00:11:43,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:11:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 00:11:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1128, Unknown=126, NotChecked=300, Total=1722 [2021-11-21 00:11:43,714 INFO L87 Difference]: Start difference. First operand 1238 states and 1444 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:12:27,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:12:27,634 INFO L93 Difference]: Finished difference Result 1264 states and 1480 transitions. [2021-11-21 00:12:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-21 00:12:27,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2021-11-21 00:12:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:12:27,639 INFO L225 Difference]: With dead ends: 1264 [2021-11-21 00:12:27,639 INFO L226 Difference]: Without dead ends: 1260 [2021-11-21 00:12:27,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 416.0s TimeCoverageRelationStatistics Valid=509, Invalid=2566, Unknown=133, NotChecked=452, Total=3660 [2021-11-21 00:12:27,642 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 59 mSDsluCounter, 9162 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 10185 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:12:27,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 10185 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:12:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2021-11-21 00:12:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1250. [2021-11-21 00:12:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 813 states have (on average 1.7872078720787208) internal successors, (1453), 1244 states have internal predecessors, (1453), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:12:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1460 transitions. [2021-11-21 00:12:27,666 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1460 transitions. Word has length 79 [2021-11-21 00:12:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:12:27,667 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1460 transitions. [2021-11-21 00:12:27,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:12:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1460 transitions. [2021-11-21 00:12:27,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-21 00:12:27,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:12:27,668 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:12:27,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-21 00:12:27,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2021-11-21 00:12:28,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-21 00:12:28,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:12:28,288 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-21 00:12:28,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:12:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1487112527, now seen corresponding path program 3 times [2021-11-21 00:12:28,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:12:28,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142158437] [2021-11-21 00:12:28,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:12:28,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:12:28,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:12:28,290 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:12:28,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-21 00:12:28,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-21 00:12:28,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:12:28,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-21 00:12:28,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:12:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:12:29,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:12:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:12:31,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:12:31,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142158437] [2021-11-21 00:12:31,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142158437] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:12:31,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1194825458] [2021-11-21 00:12:31,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:12:31,617 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:12:31,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:12:31,618 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:12:31,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-11-21 00:12:33,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-21 00:12:33,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:12:33,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-21 00:12:33,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:12:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:12:33,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:12:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:12:34,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1194825458] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:12:34,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953231211] [2021-11-21 00:12:34,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:12:34,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:12:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:12:34,371 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:12:34,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d779f2c-ec9c-43f8-9de2-2ed6d38071ab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process