./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.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_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/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_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/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_a2154828-bbae-43da-ba4a-3285e1cc97ce/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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:04:01,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:04:01,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:04:01,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:04:01,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:04:01,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:04:01,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:04:01,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:04:01,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:04:01,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:04:01,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:04:01,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:04:01,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:04:01,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:04:01,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:04:01,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:04:01,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:04:01,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:04:01,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:04:01,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:04:01,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:04:01,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:04:01,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:04:01,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:04:01,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:04:01,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:04:01,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:04:01,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:04:01,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:04:01,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:04:01,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:04:01,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:04:01,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:04:01,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:04:01,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:04:01,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:04:01,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:04:01,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:04:01,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:04:01,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:04:01,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:04:01,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 15:04:01,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:04:01,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:04:01,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:04:01,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:04:01,814 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:04:01,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:04:01,815 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:04:01,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:04:01,815 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:04:01,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:04:01,817 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:04:01,817 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:04:01,818 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:04:01,818 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:04:01,819 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:04:01,819 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:04:01,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 15:04:01,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 15:04:01,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:04:01,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:04:01,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 15:04:01,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:04:01,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:04:01,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:04:01,822 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 15:04:01,822 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 15:04:01,824 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 15:04:01,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:04:01,825 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:04:01,825 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:04:01,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:04:01,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:04:01,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:04:01,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:01,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:04:01,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:04:01,828 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:04:01,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:04:01,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:04:01,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:04:01,829 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2021-11-19 15:04:02,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:04:02,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:04:02,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:04:02,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:04:02,302 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:04:02,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2021-11-19 15:04:02,396 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/d9ffd42ac/b71e1da42fca43328fc813af11d13508/FLAGc743510b2 [2021-11-19 15:04:03,181 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:04:03,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2021-11-19 15:04:03,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/d9ffd42ac/b71e1da42fca43328fc813af11d13508/FLAGc743510b2 [2021-11-19 15:04:03,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/d9ffd42ac/b71e1da42fca43328fc813af11d13508 [2021-11-19 15:04:03,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:04:03,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:04:03,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:03,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:04:03,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:04:03,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6a6ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03, skipping insertion in model container [2021-11-19 15:04:03,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:04:03,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:04,096 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2021-11-19 15:04:04,314 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2021-11-19 15:04:04,331 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:04,343 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 15:04:04,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73696c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:04, skipping insertion in model container [2021-11-19 15:04:04,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:04,345 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:04:04,347 INFO L158 Benchmark]: Toolchain (without parser) took 957.93ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 58.6MB in the beginning and 99.5MB in the end (delta: -40.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 15:04:04,348 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:04:04,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.94ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 58.5MB in the beginning and 99.6MB in the end (delta: -41.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 15:04:04,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 950.94ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 58.5MB in the beginning and 99.6MB in the end (delta: -41.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/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_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/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_a2154828-bbae-43da-ba4a-3285e1cc97ce/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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:04:06,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:04:06,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:04:07,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:04:07,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:04:07,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:04:07,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:04:07,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:04:07,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:04:07,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:04:07,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:04:07,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:04:07,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:04:07,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:04:07,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:04:07,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:04:07,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:04:07,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:04:07,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:04:07,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:04:07,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:04:07,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:04:07,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:04:07,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:04:07,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:04:07,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:04:07,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:04:07,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:04:07,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:04:07,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:04:07,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:04:07,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:04:07,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:04:07,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:04:07,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:04:07,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:04:07,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:04:07,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:04:07,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:04:07,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:04:07,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:04:07,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 15:04:07,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:04:07,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:04:07,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:04:07,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:04:07,134 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:04:07,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:04:07,134 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:04:07,135 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:04:07,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:04:07,135 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:04:07,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 15:04:07,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 15:04:07,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:04:07,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:04:07,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 15:04:07,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:04:07,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:04:07,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:04:07,138 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 15:04:07,138 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 15:04:07,138 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 15:04:07,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:04:07,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:04:07,139 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:04:07,139 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:04:07,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:04:07,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:04:07,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:04:07,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:04:07,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:04:07,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:07,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:04:07,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:04:07,142 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:04:07,145 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:04:07,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:04:07,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:04:07,147 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2021-11-19 15:04:07,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:04:07,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:04:07,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:04:07,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:04:07,673 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:04:07,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2021-11-19 15:04:07,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/5a84aa21a/1d2599aa036a4c29844430a14b3be656/FLAG1890368a2 [2021-11-19 15:04:08,632 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:04:08,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2021-11-19 15:04:08,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/5a84aa21a/1d2599aa036a4c29844430a14b3be656/FLAG1890368a2 [2021-11-19 15:04:08,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/data/5a84aa21a/1d2599aa036a4c29844430a14b3be656 [2021-11-19 15:04:08,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:04:08,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:04:08,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:08,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:04:08,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:04:08,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:08" (1/1) ... [2021-11-19 15:04:08,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ed9ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:08, skipping insertion in model container [2021-11-19 15:04:08,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:08" (1/1) ... [2021-11-19 15:04:08,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:04:08,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:09,350 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2021-11-19 15:04:09,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2021-11-19 15:04:09,623 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:09,651 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:04:09,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:09,699 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2021-11-19 15:04:09,792 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2021-11-19 15:04:09,805 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:09,814 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:04:09,879 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2021-11-19 15:04:09,989 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_a2154828-bbae-43da-ba4a-3285e1cc97ce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2021-11-19 15:04:10,006 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:10,076 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:04:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10 WrapperNode [2021-11-19 15:04:10,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:10,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:10,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:04:10,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:04:10,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,294 INFO L137 Inliner]: procedures = 180, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1175 [2021-11-19 15:04:10,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:10,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:04:10,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:04:10,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:04:10,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:04:10,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:04:10,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:04:10,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:04:10,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (1/1) ... [2021-11-19 15:04:10,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:10,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:04:10,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:04:10,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:04:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:04:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:04:10,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 15:04:10,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 15:04:10,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:04:10,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:04:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-19 15:04:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-19 15:04:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:04:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:04:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:04:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:04:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 15:04:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:04:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:04:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:04:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:04:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:04:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:04:11,025 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:04:11,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:04:11,032 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 15:04:17,674 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:04:17,696 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:04:17,696 INFO L301 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-19 15:04:17,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:17 BoogieIcfgContainer [2021-11-19 15:04:17,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:04:17,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:04:17,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:04:17,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:04:17,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:04:08" (1/3) ... [2021-11-19 15:04:17,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2ef074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:04:17, skipping insertion in model container [2021-11-19 15:04:17,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:10" (2/3) ... [2021-11-19 15:04:17,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2ef074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:04:17, skipping insertion in model container [2021-11-19 15:04:17,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:17" (3/3) ... [2021-11-19 15:04:17,710 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2021-11-19 15:04:17,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:04:17,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 641 error locations. [2021-11-19 15:04:17,772 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:04:17,781 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 15:04:17,781 INFO L340 AbstractCegarLoop]: Starting to check reachability of 641 error locations. [2021-11-19 15:04:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 1296 states, 634 states have (on average 2.2539432176656153) internal successors, (1429), 1287 states have internal predecessors, (1429), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 15:04:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 15:04:17,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:17,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 15:04:17,836 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:17,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:17,842 INFO L85 PathProgramCache]: Analyzing trace with hash 132136, now seen corresponding path program 1 times [2021-11-19 15:04:17,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:17,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953619641] [2021-11-19 15:04:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:17,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:17,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:17,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:17,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:04:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:18,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:04:18,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:18,241 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 15:04:18,254 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 15:04:18,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:04:18,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:18,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953619641] [2021-11-19 15:04:18,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953619641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:18,277 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:18,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 15:04:18,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129215842] [2021-11-19 15:04:18,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:18,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:18,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:18,323 INFO L87 Difference]: Start difference. First operand has 1296 states, 634 states have (on average 2.2539432176656153) internal successors, (1429), 1287 states have internal predecessors, (1429), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:21,393 INFO L93 Difference]: Finished difference Result 1476 states and 1582 transitions. [2021-11-19 15:04:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 15:04:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:21,425 INFO L225 Difference]: With dead ends: 1476 [2021-11-19 15:04:21,426 INFO L226 Difference]: Without dead ends: 1474 [2021-11-19 15:04:21,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:21,432 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1162 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:21,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 1048 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 15:04:21,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-11-19 15:04:21,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1285. [2021-11-19 15:04:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 637 states have (on average 2.111459968602826) internal successors, (1345), 1275 states have internal predecessors, (1345), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-19 15:04:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1387 transitions. [2021-11-19 15:04:21,571 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1387 transitions. Word has length 3 [2021-11-19 15:04:21,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:21,571 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 1387 transitions. [2021-11-19 15:04:21,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1387 transitions. [2021-11-19 15:04:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 15:04:21,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:21,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 15:04:21,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:21,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:21,787 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:21,788 INFO L85 PathProgramCache]: Analyzing trace with hash 132137, now seen corresponding path program 1 times [2021-11-19 15:04:21,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:21,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708824377] [2021-11-19 15:04:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:21,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:21,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:21,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:21,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:04:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:21,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:21,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:21,990 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 15:04:22,007 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 15:04:22,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:22,085 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 15:04:22,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:22,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708824377] [2021-11-19 15:04:22,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708824377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:22,089 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:22,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 15:04:22,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121312145] [2021-11-19 15:04:22,090 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:22,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:04:22,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:22,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:04:22,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:22,095 INFO L87 Difference]: Start difference. First operand 1285 states and 1387 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:28,634 INFO L93 Difference]: Finished difference Result 1960 states and 2107 transitions. [2021-11-19 15:04:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:04:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 15:04:28,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:28,649 INFO L225 Difference]: With dead ends: 1960 [2021-11-19 15:04:28,650 INFO L226 Difference]: Without dead ends: 1960 [2021-11-19 15:04:28,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:28,652 INFO L933 BasicCegarLoop]: 946 mSDtfsCounter, 2187 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:28,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2190 Valid, 1740 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-19 15:04:28,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2021-11-19 15:04:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1324. [2021-11-19 15:04:28,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 684 states have (on average 2.0921052631578947) internal successors, (1431), 1313 states have internal predecessors, (1431), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 15:04:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1475 transitions. [2021-11-19 15:04:28,718 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1475 transitions. Word has length 3 [2021-11-19 15:04:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:28,719 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1475 transitions. [2021-11-19 15:04:28,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1475 transitions. [2021-11-19 15:04:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 15:04:28,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:28,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:28,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:28,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:28,926 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash -846217710, now seen corresponding path program 1 times [2021-11-19 15:04:28,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:28,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728685802] [2021-11-19 15:04:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:28,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:28,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:28,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:28,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:04:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:29,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:04:29,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:29,121 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 15:04:29,158 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 15:04:29,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:29,187 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 15:04:29,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:29,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728685802] [2021-11-19 15:04:29,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728685802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:29,192 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:29,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 15:04:29,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218243391] [2021-11-19 15:04:29,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:29,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:29,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:29,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:29,199 INFO L87 Difference]: Start difference. First operand 1324 states and 1475 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:32,435 INFO L93 Difference]: Finished difference Result 1649 states and 1822 transitions. [2021-11-19 15:04:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 15:04:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:32,447 INFO L225 Difference]: With dead ends: 1649 [2021-11-19 15:04:32,448 INFO L226 Difference]: Without dead ends: 1649 [2021-11-19 15:04:32,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:32,450 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 990 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:32,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 1612 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-19 15:04:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2021-11-19 15:04:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1277. [2021-11-19 15:04:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 684 states have (on average 2.0160818713450293) internal successors, (1379), 1266 states have internal predecessors, (1379), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 15:04:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1423 transitions. [2021-11-19 15:04:32,499 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1423 transitions. Word has length 8 [2021-11-19 15:04:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:32,499 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 1423 transitions. [2021-11-19 15:04:32,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1423 transitions. [2021-11-19 15:04:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 15:04:32,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:32,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:32,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:32,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:32,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -846217709, now seen corresponding path program 1 times [2021-11-19 15:04:32,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:32,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753377519] [2021-11-19 15:04:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:32,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:32,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:32,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:32,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:04:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:32,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:32,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:32,916 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 15:04:32,960 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 15:04:32,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:33,064 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 15:04:33,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:33,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753377519] [2021-11-19 15:04:33,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753377519] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:33,065 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:33,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 15:04:33,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657135842] [2021-11-19 15:04:33,066 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:33,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:04:33,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:04:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:33,067 INFO L87 Difference]: Start difference. First operand 1277 states and 1423 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:39,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:39,946 INFO L93 Difference]: Finished difference Result 1706 states and 1842 transitions. [2021-11-19 15:04:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:04:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 15:04:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:39,962 INFO L225 Difference]: With dead ends: 1706 [2021-11-19 15:04:39,963 INFO L226 Difference]: Without dead ends: 1706 [2021-11-19 15:04:39,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:39,967 INFO L933 BasicCegarLoop]: 1391 mSDtfsCounter, 727 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:39,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 2553 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-19 15:04:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-19 15:04:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1475. [2021-11-19 15:04:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 891 states have (on average 2.005611672278339) internal successors, (1787), 1463 states have internal predecessors, (1787), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 15:04:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1833 transitions. [2021-11-19 15:04:40,044 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1833 transitions. Word has length 8 [2021-11-19 15:04:40,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:40,045 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 1833 transitions. [2021-11-19 15:04:40,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1833 transitions. [2021-11-19 15:04:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:04:40,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:40,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:40,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:40,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:40,259 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:40,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1255764539, now seen corresponding path program 1 times [2021-11-19 15:04:40,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:40,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90094060] [2021-11-19 15:04:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:40,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:40,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:40,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:40,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:04:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:40,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:40,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:40,537 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 15:04:40,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:40,630 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 15:04:40,630 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:40,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90094060] [2021-11-19 15:04:40,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90094060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:40,631 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:40,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:04:40,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652826057] [2021-11-19 15:04:40,632 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:40,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:40,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:40,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:40,634 INFO L87 Difference]: Start difference. First operand 1475 states and 1833 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:41,290 INFO L93 Difference]: Finished difference Result 2288 states and 2863 transitions. [2021-11-19 15:04:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 15:04:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:41,307 INFO L225 Difference]: With dead ends: 2288 [2021-11-19 15:04:41,308 INFO L226 Difference]: Without dead ends: 2288 [2021-11-19 15:04:41,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 15:04:41,309 INFO L933 BasicCegarLoop]: 1445 mSDtfsCounter, 748 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:41,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2567 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:04:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2021-11-19 15:04:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 1871. [2021-11-19 15:04:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1285 states have (on average 1.9906614785992218) internal successors, (2558), 1857 states have internal predecessors, (2558), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2608 transitions. [2021-11-19 15:04:41,383 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2608 transitions. Word has length 11 [2021-11-19 15:04:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:41,383 INFO L470 AbstractCegarLoop]: Abstraction has 1871 states and 2608 transitions. [2021-11-19 15:04:41,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2608 transitions. [2021-11-19 15:04:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 15:04:41,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:41,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:41,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:41,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:41,601 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr344REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:41,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash -680989669, now seen corresponding path program 1 times [2021-11-19 15:04:41,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:41,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275616675] [2021-11-19 15:04:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:41,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:41,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:41,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:41,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:04:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:41,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:04:41,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:41,831 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 15:04:41,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:41,871 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 15:04:41,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:41,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275616675] [2021-11-19 15:04:41,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275616675] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:41,872 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:41,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:04:41,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980801475] [2021-11-19 15:04:41,872 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:41,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:04:41,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:41,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:04:41,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:41,874 INFO L87 Difference]: Start difference. First operand 1871 states and 2608 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:41,946 INFO L93 Difference]: Finished difference Result 1994 states and 2668 transitions. [2021-11-19 15:04:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-19 15:04:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:41,964 INFO L225 Difference]: With dead ends: 1994 [2021-11-19 15:04:41,964 INFO L226 Difference]: Without dead ends: 1994 [2021-11-19 15:04:41,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:41,966 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 585 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:41,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 3248 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2021-11-19 15:04:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1775. [2021-11-19 15:04:42,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1213 states have (on average 1.9670239076669416) internal successors, (2386), 1761 states have internal predecessors, (2386), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2436 transitions. [2021-11-19 15:04:42,069 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2436 transitions. Word has length 13 [2021-11-19 15:04:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:42,070 INFO L470 AbstractCegarLoop]: Abstraction has 1775 states and 2436 transitions. [2021-11-19 15:04:42,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2436 transitions. [2021-11-19 15:04:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 15:04:42,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:42,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:42,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:42,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:42,286 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr639ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1323693751, now seen corresponding path program 1 times [2021-11-19 15:04:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:42,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757418198] [2021-11-19 15:04:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:42,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:42,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:42,291 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:42,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:04:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:42,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:42,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:42,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:42,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:42,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:42,617 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-19 15:04:42,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-19 15:04:42,702 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-19 15:04:42,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-19 15:04:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:04:42,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:42,830 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 15:04:42,830 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:42,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757418198] [2021-11-19 15:04:42,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757418198] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:42,830 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:42,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 15:04:42,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492222208] [2021-11-19 15:04:42,831 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:42,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:04:42,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:42,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:04:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:04:42,832 INFO L87 Difference]: Start difference. First operand 1775 states and 2436 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 15:04:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:45,687 INFO L93 Difference]: Finished difference Result 2417 states and 3339 transitions. [2021-11-19 15:04:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:04:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 14 [2021-11-19 15:04:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:45,706 INFO L225 Difference]: With dead ends: 2417 [2021-11-19 15:04:45,706 INFO L226 Difference]: Without dead ends: 2417 [2021-11-19 15:04:45,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:45,707 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 461 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 5863 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:45,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 5863 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 15:04:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2021-11-19 15:04:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1774. [2021-11-19 15:04:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1212 states have (on average 1.966996699669967) internal successors, (2384), 1760 states have internal predecessors, (2384), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2434 transitions. [2021-11-19 15:04:45,771 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2434 transitions. Word has length 14 [2021-11-19 15:04:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:45,771 INFO L470 AbstractCegarLoop]: Abstraction has 1774 states and 2434 transitions. [2021-11-19 15:04:45,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 15:04:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2434 transitions. [2021-11-19 15:04:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 15:04:45,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:45,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:45,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:45,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:45,986 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:45,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:45,987 INFO L85 PathProgramCache]: Analyzing trace with hash -413650658, now seen corresponding path program 1 times [2021-11-19 15:04:45,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:45,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046680226] [2021-11-19 15:04:45,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:45,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:45,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:45,989 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:45,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:04:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:46,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:04:46,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:04:46,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:46,282 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 15:04:46,282 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:46,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046680226] [2021-11-19 15:04:46,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046680226] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:46,283 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:46,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:04:46,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384623979] [2021-11-19 15:04:46,283 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:46,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:04:46,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:46,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:04:46,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:46,285 INFO L87 Difference]: Start difference. First operand 1774 states and 2434 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:46,350 INFO L93 Difference]: Finished difference Result 1714 states and 2348 transitions. [2021-11-19 15:04:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:46,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-19 15:04:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:46,365 INFO L225 Difference]: With dead ends: 1714 [2021-11-19 15:04:46,365 INFO L226 Difference]: Without dead ends: 1714 [2021-11-19 15:04:46,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:46,366 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 2266 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:46,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2271 Valid, 1313 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2021-11-19 15:04:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1714. [2021-11-19 15:04:46,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1176 states have (on average 1.9540816326530612) internal successors, (2298), 1700 states have internal predecessors, (2298), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2348 transitions. [2021-11-19 15:04:46,439 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2348 transitions. Word has length 18 [2021-11-19 15:04:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:46,440 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2348 transitions. [2021-11-19 15:04:46,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2348 transitions. [2021-11-19 15:04:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 15:04:46,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:46,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:46,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:46,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:46,656 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1913675577, now seen corresponding path program 1 times [2021-11-19 15:04:46,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:46,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766955268] [2021-11-19 15:04:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:46,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:46,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:46,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:46,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:04:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:46,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:46,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:04:46,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:47,016 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 15:04:47,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:47,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766955268] [2021-11-19 15:04:47,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766955268] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:47,017 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:47,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 15:04:47,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950617144] [2021-11-19 15:04:47,017 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:47,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:04:47,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:47,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:04:47,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:47,020 INFO L87 Difference]: Start difference. First operand 1714 states and 2348 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:47,166 INFO L93 Difference]: Finished difference Result 1686 states and 2292 transitions. [2021-11-19 15:04:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:04:47,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-19 15:04:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:47,180 INFO L225 Difference]: With dead ends: 1686 [2021-11-19 15:04:47,180 INFO L226 Difference]: Without dead ends: 1686 [2021-11-19 15:04:47,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:04:47,184 INFO L933 BasicCegarLoop]: 1176 mSDtfsCounter, 1104 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2529 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 15:04:47,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 2529 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:04:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-11-19 15:04:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684. [2021-11-19 15:04:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1160 states have (on average 1.9310344827586208) internal successors, (2240), 1670 states have internal predecessors, (2240), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2290 transitions. [2021-11-19 15:04:47,235 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2290 transitions. Word has length 20 [2021-11-19 15:04:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:47,236 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2290 transitions. [2021-11-19 15:04:47,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2290 transitions. [2021-11-19 15:04:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 15:04:47,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:47,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:47,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:47,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:47,452 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:47,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:47,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753126, now seen corresponding path program 1 times [2021-11-19 15:04:47,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:47,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061765326] [2021-11-19 15:04:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:47,454 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:47,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:47,455 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:47,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:04:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:47,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:04:47,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:47,653 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 15:04:47,824 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 15:04:47,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:48,006 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 15:04:48,006 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:48,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061765326] [2021-11-19 15:04:48,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061765326] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:48,007 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:48,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:04:48,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123254052] [2021-11-19 15:04:48,008 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:48,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:04:48,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:48,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:04:48,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:04:48,012 INFO L87 Difference]: Start difference. First operand 1684 states and 2290 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:51,415 INFO L93 Difference]: Finished difference Result 2545 states and 3556 transitions. [2021-11-19 15:04:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:04:51,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-19 15:04:51,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:51,430 INFO L225 Difference]: With dead ends: 2545 [2021-11-19 15:04:51,430 INFO L226 Difference]: Without dead ends: 2545 [2021-11-19 15:04:51,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:51,431 INFO L933 BasicCegarLoop]: 665 mSDtfsCounter, 2170 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:51,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2172 Valid, 1294 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-19 15:04:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2021-11-19 15:04:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1680. [2021-11-19 15:04:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1160 states have (on average 1.9241379310344828) internal successors, (2232), 1666 states have internal predecessors, (2232), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:04:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2282 transitions. [2021-11-19 15:04:51,502 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2282 transitions. Word has length 34 [2021-11-19 15:04:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:51,503 INFO L470 AbstractCegarLoop]: Abstraction has 1680 states and 2282 transitions. [2021-11-19 15:04:51,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2282 transitions. [2021-11-19 15:04:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 15:04:51,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:51,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:51,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:51,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:51,723 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:04:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753127, now seen corresponding path program 1 times [2021-11-19 15:04:51,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:51,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849603776] [2021-11-19 15:04:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:51,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:51,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:51,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:51,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 15:04:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:51,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:04:51,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:51,928 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 15:04:52,260 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 15:04:52,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:52,893 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 15:04:52,894 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:52,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849603776] [2021-11-19 15:04:52,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849603776] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:52,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:52,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 15:04:52,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849459862] [2021-11-19 15:04:52,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:52,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:04:52,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:52,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:04:52,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:04:52,897 INFO L87 Difference]: Start difference. First operand 1680 states and 2282 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:03,338 INFO L93 Difference]: Finished difference Result 2098 states and 2508 transitions. [2021-11-19 15:05:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:05:03,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-19 15:05:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:03,352 INFO L225 Difference]: With dead ends: 2098 [2021-11-19 15:05:03,352 INFO L226 Difference]: Without dead ends: 2098 [2021-11-19 15:05:03,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:05:03,353 INFO L933 BasicCegarLoop]: 1497 mSDtfsCounter, 2684 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:03,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2684 Valid, 2761 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-11-19 15:05:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2021-11-19 15:05:03,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1676. [2021-11-19 15:05:03,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1160 states have (on average 1.9172413793103449) internal successors, (2224), 1662 states have internal predecessors, (2224), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:05:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2274 transitions. [2021-11-19 15:05:03,399 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2274 transitions. Word has length 34 [2021-11-19 15:05:03,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:03,400 INFO L470 AbstractCegarLoop]: Abstraction has 1676 states and 2274 transitions. [2021-11-19 15:05:03,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2274 transitions. [2021-11-19 15:05:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 15:05:03,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:03,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:03,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:03,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:03,617 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -515146363, now seen corresponding path program 1 times [2021-11-19 15:05:03,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:03,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332589384] [2021-11-19 15:05:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:03,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:03,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:03,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 15:05:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:03,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:05:03,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:04,067 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 15:05:04,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:04,245 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 15:05:04,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:04,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332589384] [2021-11-19 15:05:04,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332589384] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:04,246 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:04,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:05:04,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328018712] [2021-11-19 15:05:04,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:04,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:05:04,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:05:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:05:04,249 INFO L87 Difference]: Start difference. First operand 1676 states and 2274 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:04,343 INFO L93 Difference]: Finished difference Result 1664 states and 2254 transitions. [2021-11-19 15:05:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:04,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-19 15:05:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:04,355 INFO L225 Difference]: With dead ends: 1664 [2021-11-19 15:05:04,356 INFO L226 Difference]: Without dead ends: 1664 [2021-11-19 15:05:04,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:04,357 INFO L933 BasicCegarLoop]: 1170 mSDtfsCounter, 1080 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:04,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 2415 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:05:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2021-11-19 15:05:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2021-11-19 15:05:04,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1148 states have (on average 1.9198606271777003) internal successors, (2204), 1650 states have internal predecessors, (2204), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 15:05:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2254 transitions. [2021-11-19 15:05:04,400 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2254 transitions. Word has length 52 [2021-11-19 15:05:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:04,401 INFO L470 AbstractCegarLoop]: Abstraction has 1664 states and 2254 transitions. [2021-11-19 15:05:04,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2254 transitions. [2021-11-19 15:05:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 15:05:04,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:04,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:04,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:04,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:04,619 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:04,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1189287633, now seen corresponding path program 1 times [2021-11-19 15:05:04,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:04,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723470230] [2021-11-19 15:05:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:04,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:04,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:04,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 15:05:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:05,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:05:05,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:05,106 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 15:05:05,116 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 15:05:06,055 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 15:05:06,055 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 15:05:06,065 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 15:05:06,065 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 15:05:06,106 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 15:05:06,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:08,282 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc36#1.base_9| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc36#1.base_9|))) (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~user~0#1.offset| (_ bv12 32)))) (and (bvule (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|) .cse0) (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc36#1.base_9| (_ bv44 32)) |c_ULTIMATE.start_main_~user~0#1.base|)))))) is different from false [2021-11-19 15:05:11,699 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 15:05:11,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:11,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723470230] [2021-11-19 15:05:11,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723470230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:11,700 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:11,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 15:05:11,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633623658] [2021-11-19 15:05:11,701 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:11,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:05:11,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:05:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2021-11-19 15:05:11,702 INFO L87 Difference]: Start difference. First operand 1664 states and 2254 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:18,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:18,578 INFO L93 Difference]: Finished difference Result 2227 states and 2909 transitions. [2021-11-19 15:05:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:05:18,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-19 15:05:18,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:18,601 INFO L225 Difference]: With dead ends: 2227 [2021-11-19 15:05:18,602 INFO L226 Difference]: Without dead ends: 2227 [2021-11-19 15:05:18,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=16, Invalid=17, Unknown=1, NotChecked=8, Total=42 [2021-11-19 15:05:18,603 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 1463 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2526 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:18,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1470 Valid, 2263 Invalid, 4034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1461 Invalid, 0 Unknown, 2526 Unchecked, 6.8s Time] [2021-11-19 15:05:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-19 15:05:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 1312. [2021-11-19 15:05:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 832 states have (on average 1.8461538461538463) internal successors, (1536), 1300 states have internal predecessors, (1536), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 15:05:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1582 transitions. [2021-11-19 15:05:18,646 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1582 transitions. Word has length 60 [2021-11-19 15:05:18,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:18,646 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 1582 transitions. [2021-11-19 15:05:18,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:18,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1582 transitions. [2021-11-19 15:05:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 15:05:18,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:18,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:18,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:18,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:18,867 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:18,867 INFO L85 PathProgramCache]: Analyzing trace with hash 444125234, now seen corresponding path program 1 times [2021-11-19 15:05:18,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:18,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242629785] [2021-11-19 15:05:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:18,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:18,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:18,870 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:18,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 15:05:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:19,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:05:19,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:05:19,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:19,520 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 15:05:19,945 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 15:05:19,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:19,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242629785] [2021-11-19 15:05:19,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242629785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:19,946 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:19,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 15:05:19,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204456078] [2021-11-19 15:05:19,947 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:19,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:05:19,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:05:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:19,948 INFO L87 Difference]: Start difference. First operand 1312 states and 1582 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:21,981 INFO L93 Difference]: Finished difference Result 1310 states and 1580 transitions. [2021-11-19 15:05:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:21,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-19 15:05:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:21,990 INFO L225 Difference]: With dead ends: 1310 [2021-11-19 15:05:21,990 INFO L226 Difference]: Without dead ends: 1310 [2021-11-19 15:05:21,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:21,991 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 1604 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:21,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1609 Valid, 1317 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 15:05:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2021-11-19 15:05:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2021-11-19 15:05:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 832 states have (on average 1.84375) internal successors, (1534), 1298 states have internal predecessors, (1534), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 15:05:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1580 transitions. [2021-11-19 15:05:22,022 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1580 transitions. Word has length 62 [2021-11-19 15:05:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:22,023 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 1580 transitions. [2021-11-19 15:05:22,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:22,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1580 transitions. [2021-11-19 15:05:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 15:05:22,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:22,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:22,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-19 15:05:22,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:22,238 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:22,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:22,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054235, now seen corresponding path program 1 times [2021-11-19 15:05:22,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:22,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246225020] [2021-11-19 15:05:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:22,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:22,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:22,241 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:22,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 15:05:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:22,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:22,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:22,664 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 15:05:22,683 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 15:05:22,728 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 15:05:22,746 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 15:05:22,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:22,878 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 15:05:22,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:22,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246225020] [2021-11-19 15:05:22,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246225020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:22,878 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:22,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:05:22,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423330318] [2021-11-19 15:05:22,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:22,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:22,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:22,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:22,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:22,880 INFO L87 Difference]: Start difference. First operand 1310 states and 1580 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:26,702 INFO L93 Difference]: Finished difference Result 1309 states and 1579 transitions. [2021-11-19 15:05:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:05:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-19 15:05:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:26,708 INFO L225 Difference]: With dead ends: 1309 [2021-11-19 15:05:26,708 INFO L226 Difference]: Without dead ends: 1309 [2021-11-19 15:05:26,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:05:26,710 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 4 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:26,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2977 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-19 15:05:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-11-19 15:05:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2021-11-19 15:05:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 832 states have (on average 1.8425480769230769) internal successors, (1533), 1297 states have internal predecessors, (1533), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 15:05:26,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1579 transitions. [2021-11-19 15:05:26,739 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1579 transitions. Word has length 65 [2021-11-19 15:05:26,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:26,740 INFO L470 AbstractCegarLoop]: Abstraction has 1309 states and 1579 transitions. [2021-11-19 15:05:26,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:26,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1579 transitions. [2021-11-19 15:05:26,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 15:05:26,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:26,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:26,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:26,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:26,970 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:26,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054234, now seen corresponding path program 1 times [2021-11-19 15:05:26,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:26,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073441300] [2021-11-19 15:05:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:26,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:26,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:26,972 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:26,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 15:05:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:27,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:05:27,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:27,393 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 15:05:27,425 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 15:05:27,439 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 15:05:27,506 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 15:05:27,513 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 15:05:27,537 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 15:05:27,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:27,878 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 15:05:27,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:27,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073441300] [2021-11-19 15:05:27,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073441300] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:27,879 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:27,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 15:05:27,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463290779] [2021-11-19 15:05:27,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:27,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 15:05:27,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 15:05:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:05:27,881 INFO L87 Difference]: Start difference. First operand 1309 states and 1579 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:40,217 INFO L93 Difference]: Finished difference Result 1308 states and 1578 transitions. [2021-11-19 15:05:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:05:40,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-19 15:05:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:40,222 INFO L225 Difference]: With dead ends: 1308 [2021-11-19 15:05:40,223 INFO L226 Difference]: Without dead ends: 1308 [2021-11-19 15:05:40,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:05:40,224 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 2 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:40,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4916 Invalid, 3012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2021-11-19 15:05:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2021-11-19 15:05:40,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2021-11-19 15:05:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 831 states have (on average 1.8435619735258724) internal successors, (1532), 1296 states have internal predecessors, (1532), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 15:05:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1578 transitions. [2021-11-19 15:05:40,250 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1578 transitions. Word has length 65 [2021-11-19 15:05:40,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:40,251 INFO L470 AbstractCegarLoop]: Abstraction has 1308 states and 1578 transitions. [2021-11-19 15:05:40,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:40,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1578 transitions. [2021-11-19 15:05:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 15:05:40,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:40,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:40,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:40,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:40,467 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 827014060, now seen corresponding path program 1 times [2021-11-19 15:05:40,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:40,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393895324] [2021-11-19 15:05:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:40,468 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:40,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:40,469 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:40,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 15:05:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:40,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:05:40,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:40,876 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 15:05:40,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:41,068 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 15:05:41,068 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:41,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393895324] [2021-11-19 15:05:41,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393895324] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:41,069 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:41,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 15:05:41,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949670955] [2021-11-19 15:05:41,069 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:41,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:05:41,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:05:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:41,070 INFO L87 Difference]: Start difference. First operand 1308 states and 1578 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:05:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:41,182 INFO L93 Difference]: Finished difference Result 1318 states and 1591 transitions. [2021-11-19 15:05:41,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:05:41,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-19 15:05:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:41,188 INFO L225 Difference]: With dead ends: 1318 [2021-11-19 15:05:41,188 INFO L226 Difference]: Without dead ends: 1318 [2021-11-19 15:05:41,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:05:41,189 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 7 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:41,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4517 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:05:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2021-11-19 15:05:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2021-11-19 15:05:41,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 839 states have (on average 1.840286054827175) internal successors, (1544), 1305 states have internal predecessors, (1544), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-19 15:05:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1591 transitions. [2021-11-19 15:05:41,220 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1591 transitions. Word has length 73 [2021-11-19 15:05:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:41,221 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 1591 transitions. [2021-11-19 15:05:41,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:05:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1591 transitions. [2021-11-19 15:05:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-19 15:05:41,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:41,222 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:41,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:41,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:41,446 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:41,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash -856717428, now seen corresponding path program 1 times [2021-11-19 15:05:41,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:41,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083681723] [2021-11-19 15:05:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:41,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:41,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:41,447 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:41,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 15:05:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:41,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:05:41,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:41,819 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 15:05:41,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:42,071 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 15:05:42,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:42,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083681723] [2021-11-19 15:05:42,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083681723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:05:42,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [73762822] [2021-11-19 15:05:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:42,072 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:05:42,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:05:42,073 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:05:42,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-19 15:05:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:42,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:05:42,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:42,508 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 15:05:42,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:42,652 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 15:05:42,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [73762822] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:05:42,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43865854] [2021-11-19 15:05:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:42,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:05:42,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:05:42,653 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:05:42,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-19 15:05:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:42,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:05:42,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:43,040 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 15:05:43,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:43,312 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 15:05:43,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43865854] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:05:43,313 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 15:05:43,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 15:05:43,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383589097] [2021-11-19 15:05:43,313 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 15:05:43,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 15:05:43,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 15:05:43,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:05:43,315 INFO L87 Difference]: Start difference. First operand 1318 states and 1591 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 15:05:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:43,933 INFO L93 Difference]: Finished difference Result 1332 states and 1608 transitions. [2021-11-19 15:05:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 15:05:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-19 15:05:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:43,938 INFO L225 Difference]: With dead ends: 1332 [2021-11-19 15:05:43,939 INFO L226 Difference]: Without dead ends: 1326 [2021-11-19 15:05:43,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:05:43,940 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 48 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:43,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 5650 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:05:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-11-19 15:05:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1324. [2021-11-19 15:05:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 845 states have (on average 1.8355029585798817) internal successors, (1551), 1311 states have internal predecessors, (1551), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-19 15:05:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1598 transitions. [2021-11-19 15:05:43,971 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1598 transitions. Word has length 75 [2021-11-19 15:05:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:43,971 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1598 transitions. [2021-11-19 15:05:43,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 15:05:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1598 transitions. [2021-11-19 15:05:43,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 15:05:43,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:43,973 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:44,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:44,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:44,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:44,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 15:05:44,594 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-19 15:05:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:44,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1737209676, now seen corresponding path program 2 times [2021-11-19 15:05:44,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:44,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925715553] [2021-11-19 15:05:44,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:05:44,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:44,596 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:44,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 15:05:44,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:05:44,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:05:44,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:05:44,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:45,198 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 15:05:45,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:45,703 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 15:05:45,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:45,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925715553] [2021-11-19 15:05:45,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925715553] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:05:45,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [63567593] [2021-11-19 15:05:45,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:05:45,705 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:05:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:05:45,730 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:05:45,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-19 15:05:46,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:05:46,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:05:46,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:05:46,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:46,810 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 15:05:46,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:47,022 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 15:05:47,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [63567593] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:05:47,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068403051] [2021-11-19 15:05:47,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:05:47,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:05:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:05:47,024 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:05:47,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2154828-bbae-43da-ba4a-3285e1cc97ce/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-19 15:06:09,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:06:09,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:06:09,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 15:06:09,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:09,232 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 15:06:09,503 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 15:06:09,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-19 15:06:09,556 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 15:08:13,441 WARN L227 SmtUtils]: Spent 37.81s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 15:08:13,442 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 15:08:13,442 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 77 treesize of output 81 [2021-11-19 15:08:14,247 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 15:08:14,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 40 [2021-11-19 15:08:14,358 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 15:08:14,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:16,699 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 15:08:16,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 64 [2021-11-19 15:13:39,349 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 15:13:39,350 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 117 treesize of output 116 [2021-11-19 15:13:42,374 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ 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|))))))) is different from false [2021-11-19 15:13:53,030 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 15:13:53,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068403051] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:13:53,031 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 15:13:53,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-19 15:13:53,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170993835] [2021-11-19 15:13:53,031 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 15:13:53,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-19 15:13:53,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-19 15:13:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1540, Unknown=185, NotChecked=84, Total=1980 [2021-11-19 15:13:53,035 INFO L87 Difference]: Start difference. First operand 1324 states and 1598 transitions. Second operand has 45 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 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 15:13:57,909 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-19 15:15:11,326 WARN L227 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:15:13,336 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr280|) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_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|))))))))))))))))))) is different from false [2021-11-19 15:15:51,100 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr280|) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ 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|)))))))) is different from false [2021-11-19 15:15:53,130 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr280|) (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 15:16:13,834 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_88| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr280|)) is different from false [2021-11-19 15:16:15,856 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr280|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_88| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 15:16:57,447 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_88| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false