./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:06:04,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:06:04,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:06:04,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:06:04,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:06:04,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:06:04,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:06:04,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:06:04,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:06:04,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:06:04,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:06:04,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:06:04,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:06:04,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:06:04,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:06:04,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:06:04,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:06:04,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:06:04,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:06:04,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:06:04,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:06:04,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:06:04,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:06:04,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:06:04,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:06:04,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:06:04,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:06:04,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:06:04,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:06:04,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:06:04,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:06:04,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:06:04,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:06:04,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:06:04,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:06:04,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:06:04,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:06:04,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:06:04,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:06:04,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:06:04,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:06:04,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 15:06:04,400 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:06:04,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:06:04,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:06:04,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:06:04,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:06:04,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:06:04,410 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:06:04,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:06:04,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:06:04,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:06:04,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:06:04,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:06:04,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:06:04,414 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:06:04,414 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:06:04,414 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:06:04,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:06:04,415 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:06:04,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:06:04,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:06:04,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:06:04,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:06:04,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:06:04,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:04,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:06:04,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:06:04,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:06:04,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:06:04,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:06:04,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f [2021-11-22 15:06:04,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:06:04,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:06:04,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:06:04,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:06:04,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:06:04,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2021-11-22 15:06:04,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/d36def33e/eca3d98acdc0416a880d4faa6dcdc9c0/FLAG65d93d568 [2021-11-22 15:06:05,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:06:05,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2021-11-22 15:06:05,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/d36def33e/eca3d98acdc0416a880d4faa6dcdc9c0/FLAG65d93d568 [2021-11-22 15:06:05,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/d36def33e/eca3d98acdc0416a880d4faa6dcdc9c0 [2021-11-22 15:06:05,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:06:05,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:06:05,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:05,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:06:05,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:06:05,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:05" (1/1) ... [2021-11-22 15:06:05,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c24acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:05, skipping insertion in model container [2021-11-22 15:06:05,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:05" (1/1) ... [2021-11-22 15:06:05,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:06:05,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:06:06,479 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2021-11-22 15:06:06,620 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2021-11-22 15:06:06,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:06,659 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) [2021-11-22 15:06:06,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5023b4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:06, skipping insertion in model container [2021-11-22 15:06:06,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:06,661 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-22 15:06:06,663 INFO L158 Benchmark]: Toolchain (without parser) took 887.11ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 42.7MB in the beginning and 69.2MB in the end (delta: -26.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-22 15:06:06,664 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:06:06,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 881.67ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 42.4MB in the beginning and 69.2MB in the end (delta: -26.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-22 15:06:06,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 881.67ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 42.4MB in the beginning and 69.2MB in the end (delta: -26.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:06:09,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:06:09,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:06:09,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:06:09,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:06:09,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:06:09,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:06:09,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:06:09,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:06:09,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:06:09,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:06:09,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:06:09,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:06:09,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:06:09,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:06:09,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:06:09,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:06:09,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:06:09,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:06:09,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:06:09,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:06:09,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:06:09,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:06:09,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:06:09,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:06:09,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:06:09,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:06:09,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:06:09,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:06:09,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:06:09,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:06:09,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:06:09,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:06:09,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:06:09,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:06:09,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:06:09,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:06:09,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:06:09,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:06:09,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:06:09,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:06:09,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-22 15:06:09,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:06:09,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:06:09,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:06:09,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:06:09,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:06:09,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:06:09,311 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:06:09,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:06:09,311 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:06:09,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:06:09,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:06:09,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:06:09,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:06:09,313 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:06:09,314 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:06:09,314 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:06:09,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:06:09,314 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:06:09,315 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:06:09,315 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:06:09,315 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:06:09,315 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:06:09,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:06:09,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:06:09,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:06:09,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:09,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:06:09,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:06:09,317 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:06:09,318 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:06:09,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:06:09,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:06:09,319 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_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f [2021-11-22 15:06:09,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:06:09,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:06:09,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:06:09,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:06:09,806 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:06:09,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2021-11-22 15:06:09,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/91dacd79f/c0917aed52a3441dafe5868047c78e34/FLAG35779d939 [2021-11-22 15:06:10,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:06:10,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2021-11-22 15:06:10,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/91dacd79f/c0917aed52a3441dafe5868047c78e34/FLAG35779d939 [2021-11-22 15:06:10,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/data/91dacd79f/c0917aed52a3441dafe5868047c78e34 [2021-11-22 15:06:10,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:06:10,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:06:10,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:10,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:06:10,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:06:10,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:10" (1/1) ... [2021-11-22 15:06:10,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182116b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:10, skipping insertion in model container [2021-11-22 15:06:10,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:10" (1/1) ... [2021-11-22 15:06:10,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:06:10,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:06:11,466 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2021-11-22 15:06:11,611 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2021-11-22 15:06:11,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:11,642 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 15:06:11,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:06:11,695 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2021-11-22 15:06:11,778 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2021-11-22 15:06:11,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:11,793 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:06:11,834 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2021-11-22 15:06:11,936 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_027dc0ec-100d-4341-a113-0c96e1737754/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2021-11-22 15:06:11,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:11,993 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:06:11,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11 WrapperNode [2021-11-22 15:06:11,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:11,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:06:11,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:06:11,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:06:12,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,145 INFO L137 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 1623 [2021-11-22 15:06:12,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:06:12,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:06:12,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:06:12,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:06:12,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:06:12,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:06:12,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:06:12,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:06:12,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (1/1) ... [2021-11-22 15:06:12,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:12,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:06:12,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:06:12,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:06:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 15:06:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 15:06:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 15:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 15:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:06:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:06:12,765 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:06:12,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:06:20,557 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:06:20,584 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:06:20,584 INFO L301 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-22 15:06:20,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:20 BoogieIcfgContainer [2021-11-22 15:06:20,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:06:20,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:06:20,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:06:20,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:06:20,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:06:10" (1/3) ... [2021-11-22 15:06:20,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:20, skipping insertion in model container [2021-11-22 15:06:20,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:11" (2/3) ... [2021-11-22 15:06:20,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:20, skipping insertion in model container [2021-11-22 15:06:20,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:20" (3/3) ... [2021-11-22 15:06:20,601 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-2.i [2021-11-22 15:06:20,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:06:20,608 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 838 error locations. [2021-11-22 15:06:20,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:06:20,686 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 [2021-11-22 15:06:20,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 838 error locations. [2021-11-22 15:06:20,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 1677 states, 838 states have (on average 2.2338902147971362) internal successors, (1872), 1676 states have internal predecessors, (1872), 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) [2021-11-22 15:06:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 15:06:20,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:20,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 15:06:20,754 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash 28698764, now seen corresponding path program 1 times [2021-11-22 15:06:20,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:20,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994261921] [2021-11-22 15:06:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:20,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:20,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:20,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:20,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:06:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:20,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 15:06:20,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:20,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:21,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:21,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994261921] [2021-11-22 15:06:21,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994261921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:21,001 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:21,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:06:21,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064033062] [2021-11-22 15:06:21,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:21,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:06:21,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:06:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:06:21,045 INFO L87 Difference]: Start difference. First operand has 1677 states, 838 states have (on average 2.2338902147971362) internal successors, (1872), 1676 states have internal predecessors, (1872), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:21,207 INFO L93 Difference]: Finished difference Result 1659 states and 1749 transitions. [2021-11-22 15:06:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:06:21,210 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 15:06:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:21,247 INFO L225 Difference]: With dead ends: 1659 [2021-11-22 15:06:21,248 INFO L226 Difference]: Without dead ends: 1657 [2021-11-22 15:06:21,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:06:21,254 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:21,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:06:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2021-11-22 15:06:21,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2021-11-22 15:06:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 829 states have (on average 2.1073582629674306) internal successors, (1747), 1656 states have internal predecessors, (1747), 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) [2021-11-22 15:06:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1747 transitions. [2021-11-22 15:06:21,443 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1747 transitions. Word has length 5 [2021-11-22 15:06:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:21,444 INFO L470 AbstractCegarLoop]: Abstraction has 1657 states and 1747 transitions. [2021-11-22 15:06:21,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1747 transitions. [2021-11-22 15:06:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 15:06:21,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:21,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 15:06:21,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:21,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:21,651 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:21,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash 28698826, now seen corresponding path program 1 times [2021-11-22 15:06:21,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:21,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931080458] [2021-11-22 15:06:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:21,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:21,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:21,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:06:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:21,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:06:21,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:21,947 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 [2021-11-22 15:06:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:21,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:22,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:22,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931080458] [2021-11-22 15:06:22,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931080458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:22,004 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:22,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:06:22,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382322217] [2021-11-22 15:06:22,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:22,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:22,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:22,007 INFO L87 Difference]: Start difference. First operand 1657 states and 1747 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:25,500 INFO L93 Difference]: Finished difference Result 1928 states and 2056 transitions. [2021-11-22 15:06:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:25,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 15:06:25,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:25,513 INFO L225 Difference]: With dead ends: 1928 [2021-11-22 15:06:25,513 INFO L226 Difference]: Without dead ends: 1928 [2021-11-22 15:06:25,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:25,515 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 1419 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:25,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1550 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-22 15:06:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-11-22 15:06:25,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1642. [2021-11-22 15:06:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 905 states have (on average 1.9790055248618785) internal successors, (1791), 1641 states have internal predecessors, (1791), 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) [2021-11-22 15:06:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1791 transitions. [2021-11-22 15:06:25,566 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1791 transitions. Word has length 5 [2021-11-22 15:06:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:25,566 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 1791 transitions. [2021-11-22 15:06:25,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1791 transitions. [2021-11-22 15:06:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 15:06:25,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:25,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 15:06:25,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:25,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:25,780 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 28698827, now seen corresponding path program 1 times [2021-11-22 15:06:25,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487951659] [2021-11-22 15:06:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:25,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:25,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:25,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:25,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 15:06:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:25,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:06:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:25,964 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 [2021-11-22 15:06:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:25,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:26,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487951659] [2021-11-22 15:06:26,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487951659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:26,094 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:26,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 15:06:26,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429776023] [2021-11-22 15:06:26,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:26,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:26,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:26,097 INFO L87 Difference]: Start difference. First operand 1642 states and 1791 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:34,652 INFO L93 Difference]: Finished difference Result 2231 states and 2426 transitions. [2021-11-22 15:06:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:34,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 15:06:34,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:34,666 INFO L225 Difference]: With dead ends: 2231 [2021-11-22 15:06:34,666 INFO L226 Difference]: Without dead ends: 2231 [2021-11-22 15:06:34,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:34,668 INFO L933 BasicCegarLoop]: 1524 mSDtfsCounter, 855 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:34,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 2950 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-22 15:06:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-22 15:06:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1798. [2021-11-22 15:06:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1071 states have (on average 1.9579831932773109) internal successors, (2097), 1797 states have internal predecessors, (2097), 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) [2021-11-22 15:06:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2097 transitions. [2021-11-22 15:06:34,716 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2097 transitions. Word has length 5 [2021-11-22 15:06:34,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:34,717 INFO L470 AbstractCegarLoop]: Abstraction has 1798 states and 2097 transitions. [2021-11-22 15:06:34,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:34,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2097 transitions. [2021-11-22 15:06:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 15:06:34,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:34,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 15:06:34,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:34,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:34,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash 891404513, now seen corresponding path program 1 times [2021-11-22 15:06:34,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:34,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327887893] [2021-11-22 15:06:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:34,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:34,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:34,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 15:06:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:35,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:06:35,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:35,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:35,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:35,133 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:35,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327887893] [2021-11-22 15:06:35,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327887893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:35,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:35,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:06:35,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521778853] [2021-11-22 15:06:35,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:35,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:35,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:35,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:35,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:35,142 INFO L87 Difference]: Start difference. First operand 1798 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:35,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:35,317 INFO L93 Difference]: Finished difference Result 3393 states and 3979 transitions. [2021-11-22 15:06:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:35,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 15:06:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:35,339 INFO L225 Difference]: With dead ends: 3393 [2021-11-22 15:06:35,339 INFO L226 Difference]: Without dead ends: 3393 [2021-11-22 15:06:35,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:35,345 INFO L933 BasicCegarLoop]: 1639 mSDtfsCounter, 4281 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:35,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4281 Valid, 3274 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2021-11-22 15:06:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2766. [2021-11-22 15:06:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2039 states have (on average 1.948504168710152) internal successors, (3973), 2765 states have internal predecessors, (3973), 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) [2021-11-22 15:06:35,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3973 transitions. [2021-11-22 15:06:35,421 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3973 transitions. Word has length 6 [2021-11-22 15:06:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:35,422 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3973 transitions. [2021-11-22 15:06:35,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3973 transitions. [2021-11-22 15:06:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 15:06:35,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:35,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:35,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:35,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:35,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2013913556, now seen corresponding path program 1 times [2021-11-22 15:06:35,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870692199] [2021-11-22 15:06:35,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:35,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:35,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:35,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 15:06:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:35,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:06:35,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:35,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:35,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:35,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870692199] [2021-11-22 15:06:35,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870692199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:35,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:35,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:06:35,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249129236] [2021-11-22 15:06:35,887 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:35,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:35,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:35,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:35,889 INFO L87 Difference]: Start difference. First operand 2766 states and 3973 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:35,939 INFO L93 Difference]: Finished difference Result 2706 states and 3887 transitions. [2021-11-22 15:06:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 15:06:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:35,956 INFO L225 Difference]: With dead ends: 2706 [2021-11-22 15:06:35,956 INFO L226 Difference]: Without dead ends: 2706 [2021-11-22 15:06:35,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:35,958 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 3200 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:35,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3200 Valid, 1605 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:06:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2021-11-22 15:06:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2706. [2021-11-22 15:06:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2003 states have (on average 1.9405891163255118) internal successors, (3887), 2705 states have internal predecessors, (3887), 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) [2021-11-22 15:06:36,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3887 transitions. [2021-11-22 15:06:36,051 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3887 transitions. Word has length 11 [2021-11-22 15:06:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:36,052 INFO L470 AbstractCegarLoop]: Abstraction has 2706 states and 3887 transitions. [2021-11-22 15:06:36,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3887 transitions. [2021-11-22 15:06:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 15:06:36,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:36,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:36,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:36,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:36,265 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:36,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1659327634, now seen corresponding path program 1 times [2021-11-22 15:06:36,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:36,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402902704] [2021-11-22 15:06:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:36,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:36,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:36,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 15:06:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:36,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:06:36,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:36,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:36,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:36,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402902704] [2021-11-22 15:06:36,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402902704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:36,549 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:36,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-22 15:06:36,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682414636] [2021-11-22 15:06:36,550 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:36,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:06:36,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:06:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:36,551 INFO L87 Difference]: Start difference. First operand 2706 states and 3887 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:36,656 INFO L93 Difference]: Finished difference Result 2678 states and 3831 transitions. [2021-11-22 15:06:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 15:06:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:36,671 INFO L225 Difference]: With dead ends: 2678 [2021-11-22 15:06:36,671 INFO L226 Difference]: Without dead ends: 2678 [2021-11-22 15:06:36,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:06:36,673 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1571 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 3113 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 [2021-11-22 15:06:36,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 3113 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2021-11-22 15:06:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2676. [2021-11-22 15:06:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 1987 states have (on average 1.9270256668344237) internal successors, (3829), 2675 states have internal predecessors, (3829), 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) [2021-11-22 15:06:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3829 transitions. [2021-11-22 15:06:36,737 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3829 transitions. Word has length 13 [2021-11-22 15:06:36,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:36,738 INFO L470 AbstractCegarLoop]: Abstraction has 2676 states and 3829 transitions. [2021-11-22 15:06:36,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:36,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3829 transitions. [2021-11-22 15:06:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 15:06:36,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:36,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:36,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:36,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:36,953 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:36,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 913198236, now seen corresponding path program 1 times [2021-11-22 15:06:36,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:36,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247192127] [2021-11-22 15:06:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:36,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:36,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:36,955 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:36,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 15:06:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:37,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:06:37,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:37,140 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 [2021-11-22 15:06:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:37,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:37,355 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:37,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247192127] [2021-11-22 15:06:37,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247192127] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:37,355 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:37,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:06:37,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354815758] [2021-11-22 15:06:37,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:37,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:37,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:37,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:37,357 INFO L87 Difference]: Start difference. First operand 2676 states and 3829 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:41,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:41,678 INFO L93 Difference]: Finished difference Result 4223 states and 5832 transitions. [2021-11-22 15:06:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:41,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 15:06:41,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:41,701 INFO L225 Difference]: With dead ends: 4223 [2021-11-22 15:06:41,701 INFO L226 Difference]: Without dead ends: 4223 [2021-11-22 15:06:41,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:41,702 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 3341 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:41,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3341 Valid, 1742 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-22 15:06:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2021-11-22 15:06:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 2672. [2021-11-22 15:06:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 1987 states have (on average 1.9229994967287367) internal successors, (3821), 2671 states have internal predecessors, (3821), 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) [2021-11-22 15:06:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3821 transitions. [2021-11-22 15:06:41,773 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3821 transitions. Word has length 27 [2021-11-22 15:06:41,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:41,773 INFO L470 AbstractCegarLoop]: Abstraction has 2672 states and 3821 transitions. [2021-11-22 15:06:41,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3821 transitions. [2021-11-22 15:06:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 15:06:41,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:41,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:41,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:41,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:41,987 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:41,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:41,987 INFO L85 PathProgramCache]: Analyzing trace with hash 913198237, now seen corresponding path program 1 times [2021-11-22 15:06:41,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:41,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977556811] [2021-11-22 15:06:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:41,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:41,989 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:41,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 15:06:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:42,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:06:42,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:42,161 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 [2021-11-22 15:06:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:42,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:42,880 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:42,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977556811] [2021-11-22 15:06:42,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977556811] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:42,880 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:42,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:06:42,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63312334] [2021-11-22 15:06:42,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:42,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:06:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:06:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:06:42,882 INFO L87 Difference]: Start difference. First operand 2672 states and 3821 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:54,801 INFO L93 Difference]: Finished difference Result 3484 states and 4679 transitions. [2021-11-22 15:06:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:06:54,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 15:06:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:54,815 INFO L225 Difference]: With dead ends: 3484 [2021-11-22 15:06:54,816 INFO L226 Difference]: Without dead ends: 3484 [2021-11-22 15:06:54,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:06:54,817 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 2400 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:54,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 3330 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2021-11-22 15:06:54,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-11-22 15:06:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 2668. [2021-11-22 15:06:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 1987 states have (on average 1.9189733266230498) internal successors, (3813), 2667 states have internal predecessors, (3813), 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) [2021-11-22 15:06:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3813 transitions. [2021-11-22 15:06:54,910 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3813 transitions. Word has length 27 [2021-11-22 15:06:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:54,910 INFO L470 AbstractCegarLoop]: Abstraction has 2668 states and 3813 transitions. [2021-11-22 15:06:54,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3813 transitions. [2021-11-22 15:06:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 15:06:54,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:54,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:54,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:55,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:55,127 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:55,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:55,128 INFO L85 PathProgramCache]: Analyzing trace with hash 944973104, now seen corresponding path program 1 times [2021-11-22 15:06:55,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:55,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108956649] [2021-11-22 15:06:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:55,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:55,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:55,129 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:55,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-22 15:06:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:55,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:06:55,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:55,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:55,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:55,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108956649] [2021-11-22 15:06:55,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108956649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:55,522 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:55,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-22 15:06:55,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227639240] [2021-11-22 15:06:55,522 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:55,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:55,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:55,526 INFO L87 Difference]: Start difference. First operand 2668 states and 3813 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:55,577 INFO L93 Difference]: Finished difference Result 2656 states and 3793 transitions. [2021-11-22 15:06:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:55,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-22 15:06:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:55,591 INFO L225 Difference]: With dead ends: 2656 [2021-11-22 15:06:55,591 INFO L226 Difference]: Without dead ends: 2656 [2021-11-22 15:06:55,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:55,592 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 1547 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:55,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 3084 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:06:55,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-11-22 15:06:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2656. [2021-11-22 15:06:55,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 1975 states have (on average 1.9205063291139242) internal successors, (3793), 2655 states have internal predecessors, (3793), 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) [2021-11-22 15:06:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3793 transitions. [2021-11-22 15:06:55,644 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3793 transitions. Word has length 42 [2021-11-22 15:06:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:55,644 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 3793 transitions. [2021-11-22 15:06:55,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3793 transitions. [2021-11-22 15:06:55,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 15:06:55,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:55,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:55,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:55,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:55,859 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:55,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash 29098340, now seen corresponding path program 1 times [2021-11-22 15:06:55,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:55,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321430099] [2021-11-22 15:06:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:55,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:55,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:55,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:55,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-22 15:06:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:56,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:06:56,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:56,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:06:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:56,703 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:06:56,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321430099] [2021-11-22 15:06:56,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321430099] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:56,703 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:56,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:06:56,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619489693] [2021-11-22 15:06:56,704 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:56,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:56,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:06:56,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:56,706 INFO L87 Difference]: Start difference. First operand 2656 states and 3793 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:56,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:56,988 INFO L93 Difference]: Finished difference Result 2667 states and 3642 transitions. [2021-11-22 15:06:56,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:56,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-22 15:06:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:57,015 INFO L225 Difference]: With dead ends: 2667 [2021-11-22 15:06:57,015 INFO L226 Difference]: Without dead ends: 2667 [2021-11-22 15:06:57,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:57,016 INFO L933 BasicCegarLoop]: 1626 mSDtfsCounter, 279 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:57,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3040 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:06:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2021-11-22 15:06:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2472. [2021-11-22 15:06:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1791 states have (on average 1.9195979899497488) internal successors, (3438), 2471 states have internal predecessors, (3438), 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) [2021-11-22 15:06:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3438 transitions. [2021-11-22 15:06:57,071 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3438 transitions. Word has length 50 [2021-11-22 15:06:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:57,071 INFO L470 AbstractCegarLoop]: Abstraction has 2472 states and 3438 transitions. [2021-11-22 15:06:57,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3438 transitions. [2021-11-22 15:06:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 15:06:57,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:57,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:57,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:57,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:57,293 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:06:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash -839399161, now seen corresponding path program 1 times [2021-11-22 15:06:57,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:06:57,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035872205] [2021-11-22 15:06:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:57,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:06:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:06:57,296 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:06:57,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-22 15:06:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:57,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 15:06:57,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:06:57,683 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 [2021-11-22 15:06:57,689 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 [2021-11-22 15:06:58,312 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 15:06:58,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-22 15:06:58,320 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 15:06:58,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-22 15:06:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:58,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:04,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:04,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035872205] [2021-11-22 15:07:04,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035872205] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:04,315 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:04,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:07:04,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760984764] [2021-11-22 15:07:04,316 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:04,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:07:04,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:07:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 15:07:04,317 INFO L87 Difference]: Start difference. First operand 2472 states and 3438 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:11,709 INFO L93 Difference]: Finished difference Result 3490 states and 4621 transitions. [2021-11-22 15:07:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:07:11,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-22 15:07:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:11,726 INFO L225 Difference]: With dead ends: 3490 [2021-11-22 15:07:11,727 INFO L226 Difference]: Without dead ends: 3490 [2021-11-22 15:07:11,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 15:07:11,727 INFO L933 BasicCegarLoop]: 1165 mSDtfsCounter, 2209 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2322 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:11,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 2950 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1372 Invalid, 0 Unknown, 2322 Unchecked, 7.3s Time] [2021-11-22 15:07:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2021-11-22 15:07:11,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 2442. [2021-11-22 15:07:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 1793 states have (on average 1.882877858337981) internal successors, (3376), 2441 states have internal predecessors, (3376), 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) [2021-11-22 15:07:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3376 transitions. [2021-11-22 15:07:11,777 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3376 transitions. Word has length 53 [2021-11-22 15:07:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:11,778 INFO L470 AbstractCegarLoop]: Abstraction has 2442 states and 3376 transitions. [2021-11-22 15:07:11,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3376 transitions. [2021-11-22 15:07:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 15:07:11,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:11,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:11,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-22 15:07:11,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:07:11,994 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:07:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash 791264744, now seen corresponding path program 1 times [2021-11-22 15:07:11,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:07:11,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233902293] [2021-11-22 15:07:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:11,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:07:11,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:07:12,000 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:07:12,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-22 15:07:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:12,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:07:12,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:07:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:12,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:12,464 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 [2021-11-22 15:07:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:12,753 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:12,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233902293] [2021-11-22 15:07:12,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233902293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:12,753 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:12,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:07:12,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440996498] [2021-11-22 15:07:12,754 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:12,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:07:12,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:12,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:07:12,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:07:12,767 INFO L87 Difference]: Start difference. First operand 2442 states and 3376 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:15,542 INFO L93 Difference]: Finished difference Result 2440 states and 3372 transitions. [2021-11-22 15:07:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:07:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-22 15:07:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:15,550 INFO L225 Difference]: With dead ends: 2440 [2021-11-22 15:07:15,550 INFO L226 Difference]: Without dead ends: 2440 [2021-11-22 15:07:15,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:07:15,551 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 2558 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:15,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 1118 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-22 15:07:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2021-11-22 15:07:15,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2021-11-22 15:07:15,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1793 states have (on average 1.8806469604015617) internal successors, (3372), 2439 states have internal predecessors, (3372), 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) [2021-11-22 15:07:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3372 transitions. [2021-11-22 15:07:15,594 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3372 transitions. Word has length 55 [2021-11-22 15:07:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:15,594 INFO L470 AbstractCegarLoop]: Abstraction has 2440 states and 3372 transitions. [2021-11-22 15:07:15,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3372 transitions. [2021-11-22 15:07:15,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 15:07:15,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:15,596 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] [2021-11-22 15:07:15,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-22 15:07:15,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:07:15,813 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:07:15,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash -416260760, now seen corresponding path program 1 times [2021-11-22 15:07:15,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:07:15,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954499642] [2021-11-22 15:07:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:15,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:07:15,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:07:15,815 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:07:15,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-22 15:07:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:16,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:07:16,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:07:16,097 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 [2021-11-22 15:07:16,113 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 [2021-11-22 15:07:16,147 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 [2021-11-22 15:07:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:16,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:16,314 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954499642] [2021-11-22 15:07:16,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954499642] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:16,314 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:16,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 15:07:16,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919042570] [2021-11-22 15:07:16,315 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:16,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:07:16,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:07:16,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:07:16,317 INFO L87 Difference]: Start difference. First operand 2440 states and 3372 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-11-22 15:07:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:24,469 INFO L93 Difference]: Finished difference Result 3615 states and 4861 transitions. [2021-11-22 15:07:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 15:07:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2021-11-22 15:07:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:24,477 INFO L225 Difference]: With dead ends: 3615 [2021-11-22 15:07:24,477 INFO L226 Difference]: Without dead ends: 3615 [2021-11-22 15:07:24,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-22 15:07:24,479 INFO L933 BasicCegarLoop]: 948 mSDtfsCounter, 1371 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:24,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1371 Valid, 4004 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-11-22 15:07:24,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2021-11-22 15:07:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 2439. [2021-11-22 15:07:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1793 states have (on average 1.879531511433352) internal successors, (3370), 2438 states have internal predecessors, (3370), 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) [2021-11-22 15:07:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3370 transitions. [2021-11-22 15:07:24,513 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3370 transitions. Word has length 59 [2021-11-22 15:07:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:24,514 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3370 transitions. [2021-11-22 15:07:24,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-11-22 15:07:24,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3370 transitions. [2021-11-22 15:07:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 15:07:24,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:24,516 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] [2021-11-22 15:07:24,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-22 15:07:24,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:07:24,726 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:07:24,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash -19181353, now seen corresponding path program 1 times [2021-11-22 15:07:24,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:07:24,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425768759] [2021-11-22 15:07:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:24,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:07:24,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:07:24,729 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:07:24,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-22 15:07:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:24,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 15:07:24,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:07:25,041 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 [2021-11-22 15:07:25,069 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 [2021-11-22 15:07:25,081 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 [2021-11-22 15:07:25,160 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 [2021-11-22 15:07:25,165 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 [2021-11-22 15:07:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:25,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:25,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:25,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425768759] [2021-11-22 15:07:25,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425768759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:25,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-22 15:07:25,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558955454] [2021-11-22 15:07:25,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:25,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 15:07:25,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 15:07:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:07:25,725 INFO L87 Difference]: Start difference. First operand 2439 states and 3370 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 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) [2021-11-22 15:07:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:57,642 INFO L93 Difference]: Finished difference Result 3161 states and 4116 transitions. [2021-11-22 15:07:57,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 15:07:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 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 [2021-11-22 15:07:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:57,651 INFO L225 Difference]: With dead ends: 3161 [2021-11-22 15:07:57,651 INFO L226 Difference]: Without dead ends: 3161 [2021-11-22 15:07:57,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-22 15:07:57,652 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 1373 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 6405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 7808 SdHoareTripleChecker+Invalid, 6422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 6405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:57,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1373 Valid, 7808 Invalid, 6422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 6405 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time] [2021-11-22 15:07:57,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-11-22 15:07:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2438. [2021-11-22 15:07:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 1793 states have (on average 1.8784160624651423) internal successors, (3368), 2437 states have internal predecessors, (3368), 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) [2021-11-22 15:07:57,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3368 transitions. [2021-11-22 15:07:57,699 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3368 transitions. Word has length 60 [2021-11-22 15:07:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:57,699 INFO L470 AbstractCegarLoop]: Abstraction has 2438 states and 3368 transitions. [2021-11-22 15:07:57,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 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) [2021-11-22 15:07:57,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3368 transitions. [2021-11-22 15:07:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 15:07:57,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:57,701 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] [2021-11-22 15:07:57,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-22 15:07:57,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:07:57,914 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:07:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1927168386, now seen corresponding path program 1 times [2021-11-22 15:07:57,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:07:57,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914230454] [2021-11-22 15:07:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:57,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:07:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:07:57,916 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:07:57,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-22 15:07:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:58,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:07:58,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:07:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:58,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:58,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914230454] [2021-11-22 15:07:58,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914230454] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:58,479 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:58,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 15:07:58,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255181606] [2021-11-22 15:07:58,480 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:58,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:07:58,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:58,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:07:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:07:58,482 INFO L87 Difference]: Start difference. First operand 2438 states and 3368 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2021-11-22 15:07:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:58,850 INFO L93 Difference]: Finished difference Result 4393 states and 5989 transitions. [2021-11-22 15:07:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:07:58,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 64 [2021-11-22 15:07:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:58,865 INFO L225 Difference]: With dead ends: 4393 [2021-11-22 15:07:58,865 INFO L226 Difference]: Without dead ends: 4393 [2021-11-22 15:07:58,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:07:58,867 INFO L933 BasicCegarLoop]: 1984 mSDtfsCounter, 1500 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 8699 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:58,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 8699 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:07:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-11-22 15:07:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 2450. [2021-11-22 15:07:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 1805 states have (on average 1.8725761772853187) internal successors, (3380), 2449 states have internal predecessors, (3380), 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) [2021-11-22 15:07:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3380 transitions. [2021-11-22 15:07:58,915 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3380 transitions. Word has length 64 [2021-11-22 15:07:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:58,915 INFO L470 AbstractCegarLoop]: Abstraction has 2450 states and 3380 transitions. [2021-11-22 15:07:58,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2021-11-22 15:07:58,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3380 transitions. [2021-11-22 15:07:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 15:07:58,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:58,917 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] [2021-11-22 15:07:58,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-22 15:07:59,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:07:59,131 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:07:59,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash -938951394, now seen corresponding path program 1 times [2021-11-22 15:07:59,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:07:59,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71941213] [2021-11-22 15:07:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:59,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:07:59,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:07:59,133 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:07:59,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-22 15:07:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:59,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:07:59,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:07:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:59,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:07:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:07:59,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:07:59,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71941213] [2021-11-22 15:07:59,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71941213] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:07:59,700 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:07:59,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-22 15:07:59,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079126862] [2021-11-22 15:07:59,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:07:59,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 15:07:59,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:07:59,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 15:07:59,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:07:59,702 INFO L87 Difference]: Start difference. First operand 2450 states and 3380 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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) [2021-11-22 15:08:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:08:00,521 INFO L93 Difference]: Finished difference Result 3650 states and 4889 transitions. [2021-11-22 15:08:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 15:08:00,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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 66 [2021-11-22 15:08:00,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:08:00,531 INFO L225 Difference]: With dead ends: 3650 [2021-11-22 15:08:00,531 INFO L226 Difference]: Without dead ends: 3650 [2021-11-22 15:08:00,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:08:00,533 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 1076 mSDsluCounter, 7662 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 9223 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:08:00,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 9223 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 15:08:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2021-11-22 15:08:00,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 2474. [2021-11-22 15:08:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1829 states have (on average 1.8611262985237835) internal successors, (3404), 2473 states have internal predecessors, (3404), 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) [2021-11-22 15:08:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3404 transitions. [2021-11-22 15:08:00,582 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3404 transitions. Word has length 66 [2021-11-22 15:08:00,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:08:00,583 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3404 transitions. [2021-11-22 15:08:00,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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) [2021-11-22 15:08:00,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3404 transitions. [2021-11-22 15:08:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-22 15:08:00,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:08:00,584 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] [2021-11-22 15:08:00,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-22 15:08:00,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:08:00,799 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:08:00,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:08:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1093747294, now seen corresponding path program 2 times [2021-11-22 15:08:00,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:08:00,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795307335] [2021-11-22 15:08:00,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 15:08:00,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:08:00,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:08:00,802 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:08:00,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-22 15:08:01,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 15:08:01,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:08:01,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 15:08:01,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:08:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:01,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:08:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:02,481 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:08:02,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795307335] [2021-11-22 15:08:02,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795307335] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:08:02,481 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:08:02,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-22 15:08:02,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791403143] [2021-11-22 15:08:02,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:08:02,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 15:08:02,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:08:02,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 15:08:02,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-22 15:08:02,483 INFO L87 Difference]: Start difference. First operand 2474 states and 3404 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 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) [2021-11-22 15:08:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:08:11,560 INFO L93 Difference]: Finished difference Result 10557 states and 14377 transitions. [2021-11-22 15:08:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 15:08:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 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 70 [2021-11-22 15:08:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:08:11,581 INFO L225 Difference]: With dead ends: 10557 [2021-11-22 15:08:11,581 INFO L226 Difference]: Without dead ends: 10557 [2021-11-22 15:08:11,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=454, Invalid=952, Unknown=0, NotChecked=0, Total=1406 [2021-11-22 15:08:11,583 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 18457 mSDsluCounter, 32249 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18457 SdHoareTripleChecker+Valid, 37951 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-22 15:08:11,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18457 Valid, 37951 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-22 15:08:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2021-11-22 15:08:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 2550. [2021-11-22 15:08:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 1905 states have (on average 1.8456692913385826) internal successors, (3516), 2549 states have internal predecessors, (3516), 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) [2021-11-22 15:08:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3516 transitions. [2021-11-22 15:08:11,671 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3516 transitions. Word has length 70 [2021-11-22 15:08:11,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:08:11,672 INFO L470 AbstractCegarLoop]: Abstraction has 2550 states and 3516 transitions. [2021-11-22 15:08:11,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 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) [2021-11-22 15:08:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3516 transitions. [2021-11-22 15:08:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 15:08:11,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:08:11,673 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:08:11,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-22 15:08:11,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:08:11,887 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:08:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:08:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1408996130, now seen corresponding path program 3 times [2021-11-22 15:08:11,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:08:11,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016166448] [2021-11-22 15:08:11,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 15:08:11,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:08:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:08:11,890 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:08:11,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-22 15:08:12,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 15:08:12,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:08:12,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 15:08:12,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:08:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:13,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:08:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:15,179 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:08:15,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016166448] [2021-11-22 15:08:15,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016166448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:08:15,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:08:15,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-22 15:08:15,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428463731] [2021-11-22 15:08:15,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:08:15,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 15:08:15,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:08:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 15:08:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 15:08:15,183 INFO L87 Difference]: Start difference. First operand 2550 states and 3516 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 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) [2021-11-22 15:08:40,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:08:40,075 INFO L93 Difference]: Finished difference Result 28205 states and 39025 transitions. [2021-11-22 15:08:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 15:08:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 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 78 [2021-11-22 15:08:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:08:40,163 INFO L225 Difference]: With dead ends: 28205 [2021-11-22 15:08:40,164 INFO L226 Difference]: Without dead ends: 28205 [2021-11-22 15:08:40,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=1644, Invalid=4208, Unknown=0, NotChecked=0, Total=5852 [2021-11-22 15:08:40,169 INFO L933 BasicCegarLoop]: 16838 mSDtfsCounter, 48402 mSDsluCounter, 234128 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48402 SdHoareTripleChecker+Valid, 250966 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-22 15:08:40,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48402 Valid, 250966 Invalid, 3715 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [600 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2021-11-22 15:08:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28205 states. [2021-11-22 15:08:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28205 to 2678. [2021-11-22 15:08:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2033 states have (on average 1.8199704869650764) internal successors, (3700), 2677 states have internal predecessors, (3700), 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) [2021-11-22 15:08:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3700 transitions. [2021-11-22 15:08:40,512 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3700 transitions. Word has length 78 [2021-11-22 15:08:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:08:40,513 INFO L470 AbstractCegarLoop]: Abstraction has 2678 states and 3700 transitions. [2021-11-22 15:08:40,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 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) [2021-11-22 15:08:40,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3700 transitions. [2021-11-22 15:08:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 15:08:40,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:08:40,515 INFO L514 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:08:40,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-22 15:08:40,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:08:40,738 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:08:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:08:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2005712418, now seen corresponding path program 4 times [2021-11-22 15:08:40,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:08:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966683268] [2021-11-22 15:08:40,740 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 15:08:40,741 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:08:40,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:08:40,742 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:08:40,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-22 15:08:41,046 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 15:08:41,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:08:41,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 15:08:41,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:08:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:42,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:08:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:08:46,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:08:46,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966683268] [2021-11-22 15:08:46,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966683268] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:08:46,192 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:08:46,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-22 15:08:46,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994205356] [2021-11-22 15:08:46,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:08:46,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-22 15:08:46,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:08:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-22 15:08:46,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-22 15:08:46,196 INFO L87 Difference]: Start difference. First operand 2678 states and 3700 transitions. Second operand has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 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) [2021-11-22 15:11:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:39,000 INFO L93 Difference]: Finished difference Result 3974 states and 5265 transitions. [2021-11-22 15:11:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 15:11:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 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 94 [2021-11-22 15:11:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:11:39,005 INFO L225 Difference]: With dead ends: 3974 [2021-11-22 15:11:39,005 INFO L226 Difference]: Without dead ends: 3974 [2021-11-22 15:11:39,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 15:11:39,009 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 1076 mSDsluCounter, 52310 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 53871 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:11:39,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 53871 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1714 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 141.1s Time] [2021-11-22 15:11:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2021-11-22 15:11:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 2798. [2021-11-22 15:11:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2153 states have (on average 1.755689735253135) internal successors, (3780), 2797 states have internal predecessors, (3780), 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) [2021-11-22 15:11:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3780 transitions. [2021-11-22 15:11:39,054 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3780 transitions. Word has length 94 [2021-11-22 15:11:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:11:39,055 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3780 transitions. [2021-11-22 15:11:39,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 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) [2021-11-22 15:11:39,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3780 transitions. [2021-11-22 15:11:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 15:11:39,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:11:39,057 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:39,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-22 15:11:39,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:11:39,270 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:11:39,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:39,271 INFO L85 PathProgramCache]: Analyzing trace with hash -12810178, now seen corresponding path program 5 times [2021-11-22 15:11:39,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:11:39,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787454204] [2021-11-22 15:11:39,272 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 15:11:39,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:11:39,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:11:39,274 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:11:39,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-22 15:11:40,395 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-22 15:11:40,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:11:40,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 15:11:40,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:11:40,446 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 [2021-11-22 15:11:40,686 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-22 15:11:40,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2021-11-22 15:11:40,731 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 26 treesize of output 22 [2021-11-22 15:11:41,078 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 15:11:41,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2021-11-22 15:11:41,304 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:41,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:46,008 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:46,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:11:47,976 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:47,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:49,109 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:49,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:51,062 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:51,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:11:52,683 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:52,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 15:11:52,825 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:52,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:54,082 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:54,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:11:54,221 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:54,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:11:58,240 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:58,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:58,370 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:58,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:11:59,965 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:11:59,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:00,635 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:00,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:00,775 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:00,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:00,886 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:00,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:01,515 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:01,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:12:03,024 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:03,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:03,156 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:03,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:03,291 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:03,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:04,086 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:04,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:05,088 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:05,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:12:09,236 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:09,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:09,357 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:09,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:12,920 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:12,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:14,577 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:14,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 15:12:18,160 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:18,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:18,285 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:18,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:19,586 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:19,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 15:12:19,730 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:19,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 15:12:20,754 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:20,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:21,294 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:21,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 15:12:23,722 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:23,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:23,837 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:23,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:24,614 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:24,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:12:24,740 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:24,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:28,508 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:28,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:12:32,726 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:32,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:34,839 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:34,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:36,059 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:36,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:36,187 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:36,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 15:12:36,313 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:36,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 15:12:37,669 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:37,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 15:12:37,779 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:12:37,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 47 [2021-11-22 15:12:37,985 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 15:12:37,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 33 [2021-11-22 15:12:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 15:12:38,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:13:42,337 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_204| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_204| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) is different from false [2021-11-22 15:14:27,787 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_220| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_220| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) is different from false [2021-11-22 15:14:32,179 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_224| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_224| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 15:15:55,168 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_252| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_252| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 15:16:22,068 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_264| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_264| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 15:16:55,326 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_270| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_270| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))))))) is different from false [2021-11-22 15:17:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 221 proven. 39 refuted. 252 times theorem prover too weak. 268 trivial. 210 not checked. [2021-11-22 15:17:00,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:17:00,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787454204] [2021-11-22 15:17:00,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787454204] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:17:00,727 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:17:00,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16] total 24 [2021-11-22 15:17:00,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291334805] [2021-11-22 15:17:00,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:17:00,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-22 15:17:00,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:17:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-22 15:17:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=24, NotChecked=234, Total=600 [2021-11-22 15:17:00,729 INFO L87 Difference]: Start difference. First operand 2798 states and 3780 transitions. Second operand has 25 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 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) [2021-11-22 15:17:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:17:10,755 INFO L93 Difference]: Finished difference Result 3223 states and 4299 transitions. [2021-11-22 15:17:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 15:17:10,756 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 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 108 [2021-11-22 15:17:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:17:10,758 INFO L225 Difference]: With dead ends: 3223 [2021-11-22 15:17:10,758 INFO L226 Difference]: Without dead ends: 3223 [2021-11-22 15:17:10,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 115 SyntacticMatches, 79 SemanticMatches, 26 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 264.2s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=24, NotChecked=270, Total=756 [2021-11-22 15:17:10,759 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 1233 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 4225 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 8123 SdHoareTripleChecker+Invalid, 13511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9271 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-22 15:17:10,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 8123 Invalid, 13511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4225 Invalid, 0 Unknown, 9271 Unchecked, 8.6s Time] [2021-11-22 15:17:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2021-11-22 15:17:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2797. [2021-11-22 15:17:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2153 states have (on average 1.7547607988852763) internal successors, (3778), 2796 states have internal predecessors, (3778), 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) [2021-11-22 15:17:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3778 transitions. [2021-11-22 15:17:10,797 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3778 transitions. Word has length 108 [2021-11-22 15:17:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:17:10,798 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3778 transitions. [2021-11-22 15:17:10,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 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) [2021-11-22 15:17:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3778 transitions. [2021-11-22 15:17:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 15:17:10,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:17:10,799 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:17:10,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-22 15:17:11,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:17:11,016 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 15:17:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:17:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash -12810177, now seen corresponding path program 1 times [2021-11-22 15:17:11,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:17:11,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920862032] [2021-11-22 15:17:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:17:11,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:17:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:17:11,019 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:17:11,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_027dc0ec-100d-4341-a113-0c96e1737754/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-22 15:17:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:17:11,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 15:17:11,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:17:11,549 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 [2021-11-22 15:17:11,696 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 [2021-11-22 15:17:11,713 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 15:17:11,714 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 [2021-11-22 15:17:11,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-22 15:17:11,759 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 [2021-11-22 15:17:12,007 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-22 15:17:12,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-22 15:17:12,031 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 15:17:12,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2021-11-22 15:17:14,904 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:14,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:15,562 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:15,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:16,224 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:16,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:16,286 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:16,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:17,012 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:17,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:19,783 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:19,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:20,295 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:20,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:20,884 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:20,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:21,010 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:21,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:21,051 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:21,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:21,191 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:21,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:21,251 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:21,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:21,888 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:21,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:22,931 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:22,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:24,861 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:24,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:25,807 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:25,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:25,963 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:25,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:26,007 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:26,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:26,136 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:26,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:26,181 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:26,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:26,315 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:26,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:26,359 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:26,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:29,468 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:29,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:29,522 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:29,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:29,689 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:29,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:31,389 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:31,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:31,535 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:31,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:34,231 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:34,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:35,055 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:35,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:35,108 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:35,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:35,268 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:35,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:36,750 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:36,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:36,890 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:36,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:37,674 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:37,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:37,842 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:37,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:39,643 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:39,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:41,375 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:41,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:42,566 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:42,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:46,194 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:46,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:46,240 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:46,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:46,377 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:46,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:50,276 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:50,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:50,398 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:50,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:50,440 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:50,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:52,254 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:52,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:52,317 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:52,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:54,874 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:54,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:54,933 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:54,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:56,351 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:56,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:17:56,401 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:17:56,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:17:57,600 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:17:57,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:00,910 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:00,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:01,044 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:01,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:05,914 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:05,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:06,052 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:06,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:08,085 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:08,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:08,222 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:08,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:08,857 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:08,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:10,664 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:10,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:10,726 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:10,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:10,876 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:10,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:11,955 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:11,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:12,097 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:12,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:14,665 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:14,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:14,817 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:14,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:16,808 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:16,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:17,373 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:17,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:17,857 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:17,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:18,551 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:18,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:19,261 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:19,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:19,410 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:19,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:19,459 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:19,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:20,647 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:20,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:20,703 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:20,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:21,832 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:21,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:23,618 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:23,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:23,750 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:23,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:23,792 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:23,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:24,571 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:24,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:24,623 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:24,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:24,766 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:24,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:25,552 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:25,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:25,697 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 15:18:25,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 15:18:25,747 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:25,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 15:18:29,027 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:18:29,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 78 [2021-11-22 15:18:29,698 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-22 15:18:29,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 101 [2021-11-22 15:18:30,038 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 15:18:30,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-22 15:18:30,045 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 15:18:30,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 26 [2021-11-22 15:18:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 15:18:30,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:18:38,744 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:18:44,204 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_3 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_3 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_4 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_4 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:18:46,310 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_6 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_3 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_5 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd v_subst_4 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)))))) is different from false [2021-11-22 15:19:27,183 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_23 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_23 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_24 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_24 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse4 (_ bv16 32)) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-22 15:19:31,488 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_28 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_28 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_27 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_27 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:19:49,113 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_36 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_36 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_35 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_35 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-22 15:19:51,230 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_37 (_ BitVec 32)) (v_subst_35 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_37 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_35 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_36 (_ BitVec 32)) (v_subst_38 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_38 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd v_subst_36 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)))))) is different from false