./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:05,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:05,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:05,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:05,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:05,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:05,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:05,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:05,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:05,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:05,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:05,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:05,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:05,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:05,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:05,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:05,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:05,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:05,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:05,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:05,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:05,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:05,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:05,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:05,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:05,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:05,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:05,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:05,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:05,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:05,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:05,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:05,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:05,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:05,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:05,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:05,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:05,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:05,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:05,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:05,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:05,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 13:59:05,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:05,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:05,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:05,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:05,558 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:05,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:05,559 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:05,559 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:59:05,559 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:05,560 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:05,561 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:59:05,561 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:59:05,561 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:05,562 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:59:05,562 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:59:05,562 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:59:05,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:59:05,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:59:05,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:05,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:59:05,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:59:05,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:59:05,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:59:05,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:05,565 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:59:05,565 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:59:05,565 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:59:05,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:05,566 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:05,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:59:05,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:05,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:05,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:05,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:05,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:05,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:05,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:59:05,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:59:05,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:05,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:05,569 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2021-11-19 13:59:05,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:05,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:05,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:05,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:05,861 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:05,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-19 13:59:05,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/4c6de486f/4a6484aa3aae4be18818a205c25301a3/FLAG518da70d3 [2021-11-19 13:59:06,604 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:06,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-19 13:59:06,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/4c6de486f/4a6484aa3aae4be18818a205c25301a3/FLAG518da70d3 [2021-11-19 13:59:06,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/4c6de486f/4a6484aa3aae4be18818a205c25301a3 [2021-11-19 13:59:06,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:06,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:06,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:06,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:06,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:06,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:06" (1/1) ... [2021-11-19 13:59:06,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b611c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:06, skipping insertion in model container [2021-11-19 13:59:06,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:06" (1/1) ... [2021-11-19 13:59:06,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:06,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:07,325 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-19 13:59:07,531 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-19 13:59:07,558 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:07,571 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:59:07,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f71a3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:07, skipping insertion in model container [2021-11-19 13:59:07,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:07,573 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:59:07,575 INFO L158 Benchmark]: Toolchain (without parser) took 756.12ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 54.9MB in the end (delta: 1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:59:07,577 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:07,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 753.49ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.9MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:59:07,580 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 92.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 753.49ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.9MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:09,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:09,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:09,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:09,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:09,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:09,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:09,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:09,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:09,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:09,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:09,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:09,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:09,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:09,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:09,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:09,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:09,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:09,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:09,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:09,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:09,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:09,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:09,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:09,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:09,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:09,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:09,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:09,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:09,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:09,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:09,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:09,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:09,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:09,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:09,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:09,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:09,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:09,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:09,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:09,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:09,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 13:59:09,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:09,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:09,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:09,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:09,838 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:09,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:09,839 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:09,839 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:09,839 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:09,840 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:09,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:59:09,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:59:09,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:09,843 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:59:09,843 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:59:09,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:59:09,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:59:09,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:09,844 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:59:09,844 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:59:09,844 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:59:09,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:09,845 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:09,845 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:59:09,845 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:59:09,845 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:59:09,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:09,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:09,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:59:09,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:09,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:09,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:09,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:09,848 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:59:09,848 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:59:09,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:09,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:09,849 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2021-11-19 13:59:10,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:10,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:10,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:10,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:10,252 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:10,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-19 13:59:10,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/6afa5ac33/2535d8c8c21844c6bfd90ec65242d62f/FLAG0a662b11e [2021-11-19 13:59:11,027 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:11,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-19 13:59:11,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/6afa5ac33/2535d8c8c21844c6bfd90ec65242d62f/FLAG0a662b11e [2021-11-19 13:59:11,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/data/6afa5ac33/2535d8c8c21844c6bfd90ec65242d62f [2021-11-19 13:59:11,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:11,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:11,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:11,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:11,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:11,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:11" (1/1) ... [2021-11-19 13:59:11,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182116b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:11, skipping insertion in model container [2021-11-19 13:59:11,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:11" (1/1) ... [2021-11-19 13:59:11,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:11,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:11,732 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-19 13:59:11,895 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-19 13:59:11,912 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:11,923 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:59:11,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:11,966 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-19 13:59:12,064 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-19 13:59:12,086 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:12,095 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:59:12,135 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-19 13:59:12,212 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_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-19 13:59:12,219 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:12,261 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:59:12,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12 WrapperNode [2021-11-19 13:59:12,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:12,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:12,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:59:12,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:59:12,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,421 INFO L137 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1578 [2021-11-19 13:59:12,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:12,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:59:12,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:59:12,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:59:12,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:59:12,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:59:12,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:59:12,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:59:12,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (1/1) ... [2021-11-19 13:59:12,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:12,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:59:12,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:59:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:59:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:59:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:59:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:59:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:59:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:59:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:59:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:59:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:59:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:59:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:59:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 13:59:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:59:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:59:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:59:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:59:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:59:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:59:12,974 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:59:12,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:59:12,980 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:59:20,198 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:59:20,223 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:59:20,228 INFO L301 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-19 13:59:20,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:20 BoogieIcfgContainer [2021-11-19 13:59:20,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:59:20,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:59:20,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:59:20,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:59:20,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:59:11" (1/3) ... [2021-11-19 13:59:20,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4385e16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:20, skipping insertion in model container [2021-11-19 13:59:20,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:12" (2/3) ... [2021-11-19 13:59:20,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4385e16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:20, skipping insertion in model container [2021-11-19 13:59:20,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:20" (3/3) ... [2021-11-19 13:59:20,244 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-2.i [2021-11-19 13:59:20,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:59:20,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 834 error locations. [2021-11-19 13:59:20,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:59:20,319 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:59:20,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 834 error locations. [2021-11-19 13:59:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 1655 states, 813 states have (on average 2.2484624846248464) internal successors, (1828), 1646 states have internal predecessors, (1828), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 13:59:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:59:20,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:20,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:59:20,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-19 13:59:20,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:20,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799515305] [2021-11-19 13:59:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:20,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:20,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:20,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:20,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:59:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:20,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:59:20,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:20,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:20,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:20,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799515305] [2021-11-19 13:59:20,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799515305] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:20,654 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:20,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:59:20,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652128025] [2021-11-19 13:59:20,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:20,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:59:20,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:59:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:59:20,693 INFO L87 Difference]: Start difference. First operand has 1655 states, 813 states have (on average 2.2484624846248464) internal successors, (1828), 1646 states have internal predecessors, (1828), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:20,904 INFO L93 Difference]: Finished difference Result 1637 states and 1731 transitions. [2021-11-19 13:59:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:59:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 5 [2021-11-19 13:59:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:20,938 INFO L225 Difference]: With dead ends: 1637 [2021-11-19 13:59:20,938 INFO L226 Difference]: Without dead ends: 1635 [2021-11-19 13:59:20,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:59:20,944 INFO L933 BasicCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:20,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:59:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2021-11-19 13:59:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2021-11-19 13:59:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 804 states have (on average 2.123134328358209) internal successors, (1707), 1626 states have internal predecessors, (1707), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 13:59:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 1729 transitions. [2021-11-19 13:59:21,091 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 1729 transitions. Word has length 5 [2021-11-19 13:59:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:21,092 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 1729 transitions. [2021-11-19 13:59:21,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 1729 transitions. [2021-11-19 13:59:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:59:21,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:21,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:59:21,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:21,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:21,305 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-19 13:59:21,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:21,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361585222] [2021-11-19 13:59:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:21,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:21,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:21,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:21,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:59:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:21,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:59:21,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:21,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:21,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:21,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:21,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361585222] [2021-11-19 13:59:21,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361585222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:21,591 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:21,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:59:21,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466049216] [2021-11-19 13:59:21,593 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:21,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:59:21,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:21,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:59:21,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:59:21,597 INFO L87 Difference]: Start difference. First operand 1635 states and 1729 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:25,134 INFO L93 Difference]: Finished difference Result 1891 states and 2028 transitions. [2021-11-19 13:59:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:59:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 5 [2021-11-19 13:59:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:25,146 INFO L225 Difference]: With dead ends: 1891 [2021-11-19 13:59:25,146 INFO L226 Difference]: Without dead ends: 1891 [2021-11-19 13:59:25,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:59:25,148 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 1369 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:25,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1533 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-19 13:59:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-11-19 13:59:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1620. [2021-11-19 13:59:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 880 states have (on average 1.9897727272727272) internal successors, (1751), 1611 states have internal predecessors, (1751), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 13:59:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1773 transitions. [2021-11-19 13:59:25,199 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1773 transitions. Word has length 5 [2021-11-19 13:59:25,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:25,199 INFO L470 AbstractCegarLoop]: Abstraction has 1620 states and 1773 transitions. [2021-11-19 13:59:25,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:25,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1773 transitions. [2021-11-19 13:59:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:59:25,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:25,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:59:25,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 13:59:25,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:25,414 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-19 13:59:25,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:25,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367933294] [2021-11-19 13:59:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:25,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:25,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:25,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:25,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:59:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:25,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:59:25,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:25,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:25,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:25,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:25,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367933294] [2021-11-19 13:59:25,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367933294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:25,719 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 13:59:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241344057] [2021-11-19 13:59:25,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:25,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:59:25,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:59:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:25,720 INFO L87 Difference]: Start difference. First operand 1620 states and 1773 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:34,504 INFO L93 Difference]: Finished difference Result 2191 states and 2395 transitions. [2021-11-19 13:59:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:59:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 5 [2021-11-19 13:59:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:34,519 INFO L225 Difference]: With dead ends: 2191 [2021-11-19 13:59:34,520 INFO L226 Difference]: Without dead ends: 2191 [2021-11-19 13:59:34,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:34,523 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 825 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:34,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 2897 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-11-19 13:59:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2021-11-19 13:59:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 1776. [2021-11-19 13:59:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1046 states have (on average 1.9665391969407267) internal successors, (2057), 1767 states have internal predecessors, (2057), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 13:59:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2079 transitions. [2021-11-19 13:59:34,579 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2079 transitions. Word has length 5 [2021-11-19 13:59:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:34,580 INFO L470 AbstractCegarLoop]: Abstraction has 1776 states and 2079 transitions. [2021-11-19 13:59:34,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2079 transitions. [2021-11-19 13:59:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 13:59:34,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:34,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 13:59:34,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:34,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:34,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-19 13:59:34,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:34,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930486444] [2021-11-19 13:59:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:34,794 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:34,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:34,795 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:34,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:59:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:34,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:59:34,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:34,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:35,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:35,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930486444] [2021-11-19 13:59:35,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930486444] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:35,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:35,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:59:35,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572940982] [2021-11-19 13:59:35,018 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:35,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:59:35,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:59:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:35,020 INFO L87 Difference]: Start difference. First operand 1776 states and 2079 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:35,254 INFO L93 Difference]: Finished difference Result 3338 states and 3933 transitions. [2021-11-19 13:59:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:59:35,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 6 [2021-11-19 13:59:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:35,278 INFO L225 Difference]: With dead ends: 3338 [2021-11-19 13:59:35,279 INFO L226 Difference]: Without dead ends: 3338 [2021-11-19 13:59:35,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:35,282 INFO L933 BasicCegarLoop]: 1906 mSDtfsCounter, 3858 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:35,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3880 Valid, 3513 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:59:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2021-11-19 13:59:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 2721. [2021-11-19 13:59:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 1986 states have (on average 1.957703927492447) internal successors, (3888), 2706 states have internal predecessors, (3888), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3932 transitions. [2021-11-19 13:59:35,382 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3932 transitions. Word has length 6 [2021-11-19 13:59:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:35,382 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 3932 transitions. [2021-11-19 13:59:35,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:35,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3932 transitions. [2021-11-19 13:59:35,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:59:35,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:35,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:35,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:35,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:35,598 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:35,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-19 13:59:35,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:35,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777052131] [2021-11-19 13:59:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:35,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:35,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:35,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:35,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:59:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:35,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:59:35,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:35,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:35,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:35,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777052131] [2021-11-19 13:59:35,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777052131] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:35,839 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:35,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:59:35,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887450811] [2021-11-19 13:59:35,840 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:35,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:59:35,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:59:35,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:35,841 INFO L87 Difference]: Start difference. First operand 2721 states and 3932 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:35,929 INFO L93 Difference]: Finished difference Result 2661 states and 3846 transitions. [2021-11-19 13:59:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:59:35,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:59:35,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:35,948 INFO L225 Difference]: With dead ends: 2661 [2021-11-19 13:59:35,948 INFO L226 Difference]: Without dead ends: 2661 [2021-11-19 13:59:35,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:35,950 INFO L933 BasicCegarLoop]: 1580 mSDtfsCounter, 3100 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3111 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:35,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3111 Valid, 1608 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:59:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2021-11-19 13:59:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2661. [2021-11-19 13:59:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 1950 states have (on average 1.9497435897435897) internal successors, (3802), 2646 states have internal predecessors, (3802), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3846 transitions. [2021-11-19 13:59:36,025 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3846 transitions. Word has length 11 [2021-11-19 13:59:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:36,026 INFO L470 AbstractCegarLoop]: Abstraction has 2661 states and 3846 transitions. [2021-11-19 13:59:36,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3846 transitions. [2021-11-19 13:59:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:59:36,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:36,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:36,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:36,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:36,239 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-19 13:59:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:36,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138283091] [2021-11-19 13:59:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:36,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:36,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:36,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:36,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:59:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:36,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:59:36,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:36,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:36,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:36,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138283091] [2021-11-19 13:59:36,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138283091] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:36,489 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:36,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:59:36,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935397292] [2021-11-19 13:59:36,490 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:36,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:59:36,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:36,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:59:36,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:59:36,491 INFO L87 Difference]: Start difference. First operand 2661 states and 3846 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:36,595 INFO L93 Difference]: Finished difference Result 2633 states and 3790 transitions. [2021-11-19 13:59:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:59:36,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 [2021-11-19 13:59:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:36,636 INFO L225 Difference]: With dead ends: 2633 [2021-11-19 13:59:36,636 INFO L226 Difference]: Without dead ends: 2633 [2021-11-19 13:59:36,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:59:36,637 INFO L933 BasicCegarLoop]: 1535 mSDtfsCounter, 1521 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 3119 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 [2021-11-19 13:59:36,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1532 Valid, 3119 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:59:36,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2021-11-19 13:59:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2631. [2021-11-19 13:59:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 1934 states have (on average 1.9358841778697) internal successors, (3744), 2616 states have internal predecessors, (3744), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:36,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3788 transitions. [2021-11-19 13:59:36,712 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3788 transitions. Word has length 13 [2021-11-19 13:59:36,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:36,713 INFO L470 AbstractCegarLoop]: Abstraction has 2631 states and 3788 transitions. [2021-11-19 13:59:36,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:36,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3788 transitions. [2021-11-19 13:59:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:59:36,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:36,715 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] [2021-11-19 13:59:36,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:36,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:36,927 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-19 13:59:36,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:36,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889779533] [2021-11-19 13:59:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:36,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:36,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:36,932 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:36,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:59:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:37,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:59:37,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:37,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:37,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:37,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:37,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889779533] [2021-11-19 13:59:37,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889779533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:37,273 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:37,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:59:37,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986356974] [2021-11-19 13:59:37,273 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:37,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:59:37,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:59:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:37,274 INFO L87 Difference]: Start difference. First operand 2631 states and 3788 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:41,283 INFO L93 Difference]: Finished difference Result 4120 states and 5743 transitions. [2021-11-19 13:59:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:59:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-11-19 13:59:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:41,304 INFO L225 Difference]: With dead ends: 4120 [2021-11-19 13:59:41,304 INFO L226 Difference]: Without dead ends: 4120 [2021-11-19 13:59:41,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:59:41,305 INFO L933 BasicCegarLoop]: 800 mSDtfsCounter, 3206 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3214 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:41,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3214 Valid, 1886 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-19 13:59:41,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2021-11-19 13:59:41,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 2627. [2021-11-19 13:59:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 1934 states have (on average 1.9317476732161323) internal successors, (3736), 2612 states have internal predecessors, (3736), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:41,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3780 transitions. [2021-11-19 13:59:41,382 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3780 transitions. Word has length 27 [2021-11-19 13:59:41,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:41,382 INFO L470 AbstractCegarLoop]: Abstraction has 2627 states and 3780 transitions. [2021-11-19 13:59:41,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3780 transitions. [2021-11-19 13:59:41,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:59:41,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:41,384 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] [2021-11-19 13:59:41,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:41,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:41,596 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:41,597 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-19 13:59:41,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:41,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944084545] [2021-11-19 13:59:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:41,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:41,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:41,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:41,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:59:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:41,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:59:41,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:41,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:42,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:42,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:42,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944084545] [2021-11-19 13:59:42,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944084545] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:42,503 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:42,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:59:42,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907777182] [2021-11-19 13:59:42,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:42,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:59:42,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:42,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:59:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:59:42,505 INFO L87 Difference]: Start difference. First operand 2627 states and 3780 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 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) [2021-11-19 13:59:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:54,188 INFO L93 Difference]: Finished difference Result 3413 states and 4617 transitions. [2021-11-19 13:59:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:59:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 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 27 [2021-11-19 13:59:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:54,205 INFO L225 Difference]: With dead ends: 3413 [2021-11-19 13:59:54,205 INFO L226 Difference]: Without dead ends: 3413 [2021-11-19 13:59:54,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:59:54,207 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 2519 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:54,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 3238 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2021-11-19 13:59:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2021-11-19 13:59:54,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 2623. [2021-11-19 13:59:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2623 states, 1934 states have (on average 1.9276111685625645) internal successors, (3728), 2608 states have internal predecessors, (3728), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 3772 transitions. [2021-11-19 13:59:54,268 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 3772 transitions. Word has length 27 [2021-11-19 13:59:54,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:54,268 INFO L470 AbstractCegarLoop]: Abstraction has 2623 states and 3772 transitions. [2021-11-19 13:59:54,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 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) [2021-11-19 13:59:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 3772 transitions. [2021-11-19 13:59:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:59:54,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:54,270 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] [2021-11-19 13:59:54,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:54,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:54,483 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-19 13:59:54,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:54,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668460240] [2021-11-19 13:59:54,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:54,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:54,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:54,487 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:54,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:59:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:54,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:59:54,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:54,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:54,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:54,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668460240] [2021-11-19 13:59:54,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668460240] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:54,965 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:54,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:59:54,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862172367] [2021-11-19 13:59:54,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:54,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:59:54,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:54,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:59:54,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:59:54,967 INFO L87 Difference]: Start difference. First operand 2623 states and 3772 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:55,041 INFO L93 Difference]: Finished difference Result 2611 states and 3752 transitions. [2021-11-19 13:59:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:59:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-19 13:59:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:55,056 INFO L225 Difference]: With dead ends: 2611 [2021-11-19 13:59:55,057 INFO L226 Difference]: Without dead ends: 2611 [2021-11-19 13:59:55,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:59:55,058 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 1497 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:55,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 3069 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:59:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2021-11-19 13:59:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2021-11-19 13:59:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 1922 states have (on average 1.9292403746097815) internal successors, (3708), 2596 states have internal predecessors, (3708), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3752 transitions. [2021-11-19 13:59:55,111 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3752 transitions. Word has length 42 [2021-11-19 13:59:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:55,112 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3752 transitions. [2021-11-19 13:59:55,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3752 transitions. [2021-11-19 13:59:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 13:59:55,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:55,114 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] [2021-11-19 13:59:55,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:55,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:55,326 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-19 13:59:55,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:55,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663466797] [2021-11-19 13:59:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:55,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:55,329 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:55,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:59:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:55,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:59:55,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:55,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:56,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:56,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663466797] [2021-11-19 13:59:56,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663466797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:56,254 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:56,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:59:56,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726747457] [2021-11-19 13:59:56,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:56,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:59:56,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:59:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:59:56,256 INFO L87 Difference]: Start difference. First operand 2611 states and 3752 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:56,482 INFO L93 Difference]: Finished difference Result 2622 states and 3601 transitions. [2021-11-19 13:59:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:59:56,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-19 13:59:56,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:56,494 INFO L225 Difference]: With dead ends: 2622 [2021-11-19 13:59:56,494 INFO L226 Difference]: Without dead ends: 2622 [2021-11-19 13:59:56,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:59:56,495 INFO L933 BasicCegarLoop]: 1608 mSDtfsCounter, 269 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:56,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3012 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:59:56,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2021-11-19 13:59:56,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2427. [2021-11-19 13:59:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 1738 states have (on average 1.929228998849252) internal successors, (3353), 2412 states have internal predecessors, (3353), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 13:59:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3397 transitions. [2021-11-19 13:59:56,544 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3397 transitions. Word has length 50 [2021-11-19 13:59:56,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:56,544 INFO L470 AbstractCegarLoop]: Abstraction has 2427 states and 3397 transitions. [2021-11-19 13:59:56,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:59:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3397 transitions. [2021-11-19 13:59:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-19 13:59:56,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:56,546 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] [2021-11-19 13:59:56,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:56,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:56,759 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 13:59:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-19 13:59:56,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:56,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225008908] [2021-11-19 13:59:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:56,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:56,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:56,762 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:56,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:59:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:57,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:59:57,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:57,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:57,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:59:57,748 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:59:57,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-19 13:59:57,756 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 13:59:57,757 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 25 treesize of output 21 [2021-11-19 13:59:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:59:57,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:02,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:02,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225008908] [2021-11-19 14:00:02,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225008908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:02,579 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:02,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:00:02,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308283423] [2021-11-19 14:00:02,580 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:02,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:00:02,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:02,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:00:02,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-19 14:00:02,581 INFO L87 Difference]: Start difference. First operand 2427 states and 3397 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:02,868 INFO L93 Difference]: Finished difference Result 2426 states and 3395 transitions. [2021-11-19 14:00:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:02,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 53 [2021-11-19 14:00:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:02,889 INFO L225 Difference]: With dead ends: 2426 [2021-11-19 14:00:02,894 INFO L226 Difference]: Without dead ends: 2426 [2021-11-19 14:00:02,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-19 14:00:02,896 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 128 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1076 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:02,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 2372 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 1076 Unchecked, 0.2s Time] [2021-11-19 14:00:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-11-19 14:00:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2021-11-19 14:00:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1738 states have (on average 1.928078250863061) internal successors, (3351), 2411 states have internal predecessors, (3351), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 14:00:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3395 transitions. [2021-11-19 14:00:02,979 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3395 transitions. Word has length 53 [2021-11-19 14:00:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:02,980 INFO L470 AbstractCegarLoop]: Abstraction has 2426 states and 3395 transitions. [2021-11-19 14:00:02,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3395 transitions. [2021-11-19 14:00:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 14:00:02,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:02,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:03,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:03,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:03,198 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:03,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:03,198 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-19 14:00:03,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:03,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695634304] [2021-11-19 14:00:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:03,200 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:03,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:03,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:03,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:00:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:03,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:00:03,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:03,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:03,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-19 14:00:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:04,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:04,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695634304] [2021-11-19 14:00:04,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695634304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:04,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:04,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:00:04,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007755150] [2021-11-19 14:00:04,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:04,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:00:04,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:04,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:00:04,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:04,029 INFO L87 Difference]: Start difference. First operand 2426 states and 3395 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:07,632 INFO L93 Difference]: Finished difference Result 2393 states and 3329 transitions. [2021-11-19 14:00:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:07,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 55 [2021-11-19 14:00:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:07,638 INFO L225 Difference]: With dead ends: 2393 [2021-11-19 14:00:07,638 INFO L226 Difference]: Without dead ends: 2393 [2021-11-19 14:00:07,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:07,639 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 3641 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:07,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3652 Valid, 1448 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-19 14:00:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2021-11-19 14:00:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2021-11-19 14:00:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 1738 states have (on average 1.8901035673187572) internal successors, (3285), 2378 states have internal predecessors, (3285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 14:00:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3329 transitions. [2021-11-19 14:00:07,680 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3329 transitions. Word has length 55 [2021-11-19 14:00:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:07,680 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 3329 transitions. [2021-11-19 14:00:07,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3329 transitions. [2021-11-19 14:00:07,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 14:00:07,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:07,682 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] [2021-11-19 14:00:07,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:07,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:07,895 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:07,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-19 14:00:07,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:07,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965527969] [2021-11-19 14:00:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:07,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:07,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:07,898 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:07,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:00:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:08,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:08,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:08,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:00:08,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-19 14:00:08,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-19 14:00:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:08,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:08,467 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:08,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965527969] [2021-11-19 14:00:08,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965527969] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:08,467 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:08,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:00:08,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94867648] [2021-11-19 14:00:08,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:08,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:08,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:08,469 INFO L87 Difference]: Start difference. First operand 2393 states and 3329 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:13,133 INFO L93 Difference]: Finished difference Result 2392 states and 3327 transitions. [2021-11-19 14:00:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:00:13,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2021-11-19 14:00:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:13,138 INFO L225 Difference]: With dead ends: 2392 [2021-11-19 14:00:13,138 INFO L226 Difference]: Without dead ends: 2392 [2021-11-19 14:00:13,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:00:13,139 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 4 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3854 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:13,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3854 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-19 14:00:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2021-11-19 14:00:13,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2021-11-19 14:00:13,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1738 states have (on average 1.8889528193325662) internal successors, (3283), 2377 states have internal predecessors, (3283), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 14:00:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3327 transitions. [2021-11-19 14:00:13,176 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3327 transitions. Word has length 58 [2021-11-19 14:00:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:13,176 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 3327 transitions. [2021-11-19 14:00:13,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3327 transitions. [2021-11-19 14:00:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 14:00:13,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:13,178 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] [2021-11-19 14:00:13,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-19 14:00:13,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:13,397 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-19 14:00:13,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:13,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587727368] [2021-11-19 14:00:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:13,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:13,399 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:13,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:00:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:13,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:00:13,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:13,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:00:13,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-19 14:00:13,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:00:13,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-19 14:00:13,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-19 14:00:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:13,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:14,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:14,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587727368] [2021-11-19 14:00:14,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587727368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:14,211 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:14,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 14:00:14,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910200014] [2021-11-19 14:00:14,211 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:14,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:00:14,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:14,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:00:14,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:00:14,212 INFO L87 Difference]: Start difference. First operand 2392 states and 3327 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:28,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:28,691 INFO L93 Difference]: Finished difference Result 2391 states and 3325 transitions. [2021-11-19 14:00:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:00:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 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 58 [2021-11-19 14:00:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:28,698 INFO L225 Difference]: With dead ends: 2391 [2021-11-19 14:00:28,698 INFO L226 Difference]: Without dead ends: 2391 [2021-11-19 14:00:28,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:00:28,699 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 3 mSDsluCounter, 3849 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5348 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:28,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5348 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2021-11-19 14:00:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-11-19 14:00:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2021-11-19 14:00:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 1736 states have (on average 1.8899769585253456) internal successors, (3281), 2376 states have internal predecessors, (3281), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 14:00:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3325 transitions. [2021-11-19 14:00:28,735 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3325 transitions. Word has length 58 [2021-11-19 14:00:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:28,735 INFO L470 AbstractCegarLoop]: Abstraction has 2391 states and 3325 transitions. [2021-11-19 14:00:28,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:00:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3325 transitions. [2021-11-19 14:00:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:00:28,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:28,737 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] [2021-11-19 14:00:28,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:28,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:28,950 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:28,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2015085822, now seen corresponding path program 1 times [2021-11-19 14:00:28,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:28,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478670323] [2021-11-19 14:00:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:28,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:28,952 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:00:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:29,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:00:29,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:29,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:29,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:29,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478670323] [2021-11-19 14:00:29,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478670323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:29,514 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:29,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:00:29,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993528510] [2021-11-19 14:00:29,514 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:29,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:00:29,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:00:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:29,515 INFO L87 Difference]: Start difference. First operand 2391 states and 3325 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:00:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:29,678 INFO L93 Difference]: Finished difference Result 2401 states and 3341 transitions. [2021-11-19 14:00:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:00:29,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 66 [2021-11-19 14:00:29,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:29,685 INFO L225 Difference]: With dead ends: 2401 [2021-11-19 14:00:29,686 INFO L226 Difference]: Without dead ends: 2401 [2021-11-19 14:00:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:00:29,687 INFO L933 BasicCegarLoop]: 1497 mSDtfsCounter, 9 mSDsluCounter, 4474 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:29,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5971 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:00:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2021-11-19 14:00:29,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2401. [2021-11-19 14:00:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 1744 states have (on average 1.8881880733944953) internal successors, (3293), 2385 states have internal predecessors, (3293), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-19 14:00:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 3341 transitions. [2021-11-19 14:00:29,747 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 3341 transitions. Word has length 66 [2021-11-19 14:00:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:29,747 INFO L470 AbstractCegarLoop]: Abstraction has 2401 states and 3341 transitions. [2021-11-19 14:00:29,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:00:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 3341 transitions. [2021-11-19 14:00:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:00:29,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:29,748 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] [2021-11-19 14:00:29,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:29,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:29,948 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:29,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1919736862, now seen corresponding path program 1 times [2021-11-19 14:00:29,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:29,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311352700] [2021-11-19 14:00:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:29,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:29,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:29,950 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:29,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:00:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:30,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:00:30,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:30,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:30,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:30,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:30,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311352700] [2021-11-19 14:00:30,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311352700] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:30,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [147054149] [2021-11-19 14:00:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:30,576 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:00:30,577 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:00:30,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-19 14:00:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:30,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:00:30,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:31,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:31,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [147054149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:31,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334836361] [2021-11-19 14:00:31,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:31,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:00:31,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:00:31,195 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:00:31,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 14:00:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:31,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:00:31,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:31,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:31,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334836361] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:31,827 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:00:31,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 14:00:31,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607620133] [2021-11-19 14:00:31,827 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:00:31,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:00:31,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:00:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:00:31,829 INFO L87 Difference]: Start difference. First operand 2401 states and 3341 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:00:32,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:32,492 INFO L93 Difference]: Finished difference Result 2415 states and 3361 transitions. [2021-11-19 14:00:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:00:32,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 68 [2021-11-19 14:00:32,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:32,501 INFO L225 Difference]: With dead ends: 2415 [2021-11-19 14:00:32,501 INFO L226 Difference]: Without dead ends: 2409 [2021-11-19 14:00:32,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:00:32,503 INFO L933 BasicCegarLoop]: 1497 mSDtfsCounter, 42 mSDsluCounter, 7455 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 8952 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:32,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 8952 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:00:32,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-19 14:00:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2407. [2021-11-19 14:00:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 1750 states have (on average 1.8857142857142857) internal successors, (3300), 2391 states have internal predecessors, (3300), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-19 14:00:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3348 transitions. [2021-11-19 14:00:32,559 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3348 transitions. Word has length 68 [2021-11-19 14:00:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:32,559 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 3348 transitions. [2021-11-19 14:00:32,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:00:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3348 transitions. [2021-11-19 14:00:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 14:00:32,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:32,563 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] [2021-11-19 14:00:32,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:32,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:33,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:33,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:00:33,180 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 830 more)] === [2021-11-19 14:00:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -863686050, now seen corresponding path program 2 times [2021-11-19 14:00:33,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:33,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692312106] [2021-11-19 14:00:33,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:00:33,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:33,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:33,182 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:33,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:00:33,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:00:33,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:00:33,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:00:33,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:33,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:34,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:34,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692312106] [2021-11-19 14:00:34,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692312106] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:34,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1128199840] [2021-11-19 14:00:34,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:00:34,610 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:34,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:00:34,611 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:00:34,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-19 14:00:35,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:00:35,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:00:35,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:00:35,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:35,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:35,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:00:36,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1128199840] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:36,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676078121] [2021-11-19 14:00:36,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:00:36,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:00:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:00:36,222 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:00:36,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e3a7a07-4a1f-4a92-b21b-4ce57b3a845f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 14:00:46,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:00:46,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:00:46,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:00:46,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:46,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:00:46,395 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:00:46,395 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 15 treesize of output 15 [2021-11-19 14:00:46,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 14:02:34,331 WARN L227 SmtUtils]: Spent 21.99s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:02:34,345 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 14:02:34,346 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 75 treesize of output 79 [2021-11-19 14:02:35,044 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 14:02:35,045 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 125 treesize of output 38 [2021-11-19 14:02:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:35,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:37,563 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:02:37,564 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 63 treesize of output 62 [2021-11-19 14:07:49,094 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:07:49,095 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 120 treesize of output 119 [2021-11-19 14:07:52,354 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr362_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_120| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |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|)) |c_#Ultimate.C_memset_#ptr.base|))))) is different from false [2021-11-19 14:08:02,873 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:08:02,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676078121] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:08:02,874 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:08:02,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-19 14:08:02,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953490098] [2021-11-19 14:08:02,874 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:08:02,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-19 14:08:02,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-19 14:08:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1540, Unknown=178, NotChecked=84, Total=1980 [2021-11-19 14:08:02,877 INFO L87 Difference]: Start difference. First operand 2407 states and 3348 transitions. Second operand has 45 states, 43 states have (on average 4.976744186046512) internal successors, (214), 43 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 14:08:08,339 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr362_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_120| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-19 14:08:32,657 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr362|) (forall ((|v_#Ultimate.C_memset_#t~loopctr362_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 14:09:09,310 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr362_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr362|)) is different from false [2021-11-19 14:09:47,216 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |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|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr362|)) is different from false [2021-11-19 14:10:30,929 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_88| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr362|)) is different from false [2021-11-19 14:11:11,517 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_88| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 14:12:38,168 WARN L227 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 14:12:40,188 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr362|) (forall ((|v_#Ultimate.C_memset_#t~loopctr362_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr362| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_112| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr362_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr362_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr362|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr362_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr362_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr362_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false