./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/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 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:22:21,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:22:21,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:22:21,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:22:21,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:22:21,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:22:21,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:22:21,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:22:21,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:22:21,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:22:21,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:22:21,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:22:21,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:22:21,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:22:21,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:22:21,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:22:21,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:22:21,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:22:21,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:22:21,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:22:21,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:22:21,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:22:21,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:22:21,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:22:21,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:22:21,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:22:21,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:22:21,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:22:21,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:22:21,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:22:21,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:22:21,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:22:21,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:22:21,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:22:21,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:22:21,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:22:21,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:22:21,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:22:21,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:22:21,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:22:21,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:22:21,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 16:22:21,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:22:21,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:22:21,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:22:21,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:22:21,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:22:21,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:22:21,564 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:22:21,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:22:21,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:22:21,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:22:21,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:22:21,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:22:21,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:22:21,566 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 16:22:21,566 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 16:22:21,567 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 16:22:21,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:22:21,567 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:22:21,567 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:22:21,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:22:21,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:22:21,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:22:21,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:22:21,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:22:21,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:22:21,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:22:21,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:22:21,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:22:21,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:22:21,570 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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 [2021-11-22 16:22:21,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:22:21,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:22:22,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:22:22,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:22:22,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:22:22,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-11-22 16:22:22,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/data/575a1d7e8/b8413b3dee784d34b34dad50508c4996/FLAG901bcd907 [2021-11-22 16:22:22,810 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:22:22,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-11-22 16:22:22,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/data/575a1d7e8/b8413b3dee784d34b34dad50508c4996/FLAG901bcd907 [2021-11-22 16:22:23,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/data/575a1d7e8/b8413b3dee784d34b34dad50508c4996 [2021-11-22 16:22:23,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:22:23,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:22:23,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:22:23,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:22:23,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:22:23,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b55b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23, skipping insertion in model container [2021-11-22 16:22:23,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:22:23,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:22:23,556 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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-11-22 16:22:23,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:22:23,589 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:22:23,704 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_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-11-22 16:22:23,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:22:23,749 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:22:23,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23 WrapperNode [2021-11-22 16:22:23,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:22:23,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:22:23,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:22:23,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:22:23,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,857 INFO L137 Inliner]: procedures = 122, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2021-11-22 16:22:23,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:22:23,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:22:23,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:22:23,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:22:23,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:22:23,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:22:23,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:22:23,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:22:23,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (1/1) ... [2021-11-22 16:22:23,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:22:23,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:22:23,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:22:23,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:22:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 16:22:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:22:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 16:22:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:22:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 16:22:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 16:22:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:22:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:22:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:22:24,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:22:24,210 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:22:24,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:22:24,679 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:22:24,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:22:24,690 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-22 16:22:24,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:22:24 BoogieIcfgContainer [2021-11-22 16:22:24,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:22:24,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:22:24,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:22:24,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:22:24,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:22:23" (1/3) ... [2021-11-22 16:22:24,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ce6d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:22:24, skipping insertion in model container [2021-11-22 16:22:24,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:22:23" (2/3) ... [2021-11-22 16:22:24,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ce6d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:22:24, skipping insertion in model container [2021-11-22 16:22:24,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:22:24" (3/3) ... [2021-11-22 16:22:24,725 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_circular_traversal-2.i [2021-11-22 16:22:24,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:22:24,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-11-22 16:22:24,798 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:22:24,807 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 16:22:24,807 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-11-22 16:22:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 77 states have internal predecessors, (87), 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 16:22:24,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-22 16:22:24,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:24,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-22 16:22:24,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2021-11-22 16:22:24,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:24,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192268223] [2021-11-22 16:22:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:24,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:25,052 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 16:22:25,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:25,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192268223] [2021-11-22 16:22:25,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192268223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:25,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:25,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:22:25,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151156170] [2021-11-22 16:22:25,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:25,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:22:25,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:25,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:22:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:22:25,102 INFO L87 Difference]: Start difference. First operand has 78 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 77 states have internal predecessors, (87), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:22:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:25,238 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2021-11-22 16:22:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:22:25,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-22 16:22:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:25,257 INFO L225 Difference]: With dead ends: 91 [2021-11-22 16:22:25,257 INFO L226 Difference]: Without dead ends: 87 [2021-11-22 16:22:25,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:25,265 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 68 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:25,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 58 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-22 16:22:25,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 70. [2021-11-22 16:22:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.8717948717948718) internal successors, (73), 69 states have internal predecessors, (73), 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 16:22:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2021-11-22 16:22:25,328 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 4 [2021-11-22 16:22:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:25,328 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2021-11-22 16:22:25,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:22:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2021-11-22 16:22:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-22 16:22:25,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:25,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-22 16:22:25,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:22:25,331 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2021-11-22 16:22:25,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:25,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132976359] [2021-11-22 16:22:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:25,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:25,429 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 16:22:25,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:25,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132976359] [2021-11-22 16:22:25,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132976359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:25,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:25,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:22:25,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720884431] [2021-11-22 16:22:25,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:25,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:22:25,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:22:25,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:22:25,434 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:22:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:25,564 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-22 16:22:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:22:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-22 16:22:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:25,570 INFO L225 Difference]: With dead ends: 66 [2021-11-22 16:22:25,571 INFO L226 Difference]: Without dead ends: 66 [2021-11-22 16:22:25,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:25,580 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:25,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 40 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-22 16:22:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-22 16:22:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 65 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 16:22:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-11-22 16:22:25,606 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 4 [2021-11-22 16:22:25,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:25,608 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-11-22 16:22:25,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:22:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-11-22 16:22:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 16:22:25,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:25,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:22:25,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:25,618 INFO L85 PathProgramCache]: Analyzing trace with hash 613337907, now seen corresponding path program 1 times [2021-11-22 16:22:25,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:25,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668126749] [2021-11-22 16:22:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:25,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:25,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:25,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668126749] [2021-11-22 16:22:25,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668126749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:25,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:25,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:22:25,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610788905] [2021-11-22 16:22:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:25,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:22:25,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:25,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:22:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:22:25,785 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 16:22:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:25,970 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2021-11-22 16:22:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:22:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-11-22 16:22:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:25,975 INFO L225 Difference]: With dead ends: 96 [2021-11-22 16:22:25,975 INFO L226 Difference]: Without dead ends: 96 [2021-11-22 16:22:25,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:22:25,986 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 175 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:25,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 67 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-22 16:22:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 73. [2021-11-22 16:22:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 72 states have internal predecessors, (83), 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 16:22:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-11-22 16:22:26,008 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 10 [2021-11-22 16:22:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:26,008 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-11-22 16:22:26,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 16:22:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-11-22 16:22:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 16:22:26,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:26,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:26,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:22:26,009 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:26,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:26,010 INFO L85 PathProgramCache]: Analyzing trace with hash 613337908, now seen corresponding path program 1 times [2021-11-22 16:22:26,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:26,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442589964] [2021-11-22 16:22:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:26,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:26,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:26,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442589964] [2021-11-22 16:22:26,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442589964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:26,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:26,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:22:26,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084118294] [2021-11-22 16:22:26,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:26,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:22:26,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:26,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:22:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:22:26,136 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:26,152 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2021-11-22 16:22:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:22:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-22 16:22:26,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:26,156 INFO L225 Difference]: With dead ends: 77 [2021-11-22 16:22:26,157 INFO L226 Difference]: Without dead ends: 77 [2021-11-22 16:22:26,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:22:26,168 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 10 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:26,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 127 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:22:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-22 16:22:26,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2021-11-22 16:22:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 70 states have internal predecessors, (79), 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 16:22:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2021-11-22 16:22:26,182 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 10 [2021-11-22 16:22:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:26,183 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2021-11-22 16:22:26,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2021-11-22 16:22:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 16:22:26,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:26,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:26,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:22:26,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:26,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:26,186 INFO L85 PathProgramCache]: Analyzing trace with hash 613339348, now seen corresponding path program 1 times [2021-11-22 16:22:26,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:26,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118504317] [2021-11-22 16:22:26,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:26,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:26,232 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 16:22:26,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:26,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118504317] [2021-11-22 16:22:26,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118504317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:26,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:26,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:22:26,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632484017] [2021-11-22 16:22:26,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:26,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:22:26,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:22:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:22:26,236 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:26,315 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2021-11-22 16:22:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:22:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-22 16:22:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:26,318 INFO L225 Difference]: With dead ends: 86 [2021-11-22 16:22:26,319 INFO L226 Difference]: Without dead ends: 86 [2021-11-22 16:22:26,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:26,320 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:26,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 56 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:26,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-22 16:22:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2021-11-22 16:22:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 68 states have internal predecessors, (75), 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 16:22:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2021-11-22 16:22:26,338 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 10 [2021-11-22 16:22:26,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:26,340 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2021-11-22 16:22:26,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2021-11-22 16:22:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 16:22:26,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:26,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:26,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:22:26,345 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:26,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash 613339349, now seen corresponding path program 1 times [2021-11-22 16:22:26,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:26,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572955693] [2021-11-22 16:22:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:26,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:26,458 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 16:22:26,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:26,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572955693] [2021-11-22 16:22:26,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572955693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:26,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:26,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:22:26,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000257839] [2021-11-22 16:22:26,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:26,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:22:26,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:26,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:22:26,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:22:26,462 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:26,529 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2021-11-22 16:22:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:22:26,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-22 16:22:26,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:26,531 INFO L225 Difference]: With dead ends: 67 [2021-11-22 16:22:26,532 INFO L226 Difference]: Without dead ends: 67 [2021-11-22 16:22:26,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:26,534 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:26,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 44 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-22 16:22:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-22 16:22:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.6136363636363635) internal successors, (71), 66 states have internal predecessors, (71), 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 16:22:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-11-22 16:22:26,559 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 10 [2021-11-22 16:22:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:26,559 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-11-22 16:22:26,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-11-22 16:22:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 16:22:26,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:26,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:26,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:22:26,565 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:26,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1008594168, now seen corresponding path program 1 times [2021-11-22 16:22:26,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:26,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662593237] [2021-11-22 16:22:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:26,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:26,719 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 16:22:26,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:26,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662593237] [2021-11-22 16:22:26,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662593237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:26,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:26,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:22:26,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933936290] [2021-11-22 16:22:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:26,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:22:26,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:22:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:22:26,723 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:22:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:26,843 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2021-11-22 16:22:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:22:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 16:22:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:26,844 INFO L225 Difference]: With dead ends: 68 [2021-11-22 16:22:26,844 INFO L226 Difference]: Without dead ends: 68 [2021-11-22 16:22:26,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 16:22:26,846 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 64 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:26,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 70 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-22 16:22:26,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2021-11-22 16:22:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 66 states have internal predecessors, (70), 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 16:22:26,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-11-22 16:22:26,850 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 12 [2021-11-22 16:22:26,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:26,850 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-11-22 16:22:26,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:22:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-11-22 16:22:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 16:22:26,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:26,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:26,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:22:26,853 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:26,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash -253272473, now seen corresponding path program 1 times [2021-11-22 16:22:26,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:26,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122707873] [2021-11-22 16:22:26,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:26,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:26,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:26,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122707873] [2021-11-22 16:22:26,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122707873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:26,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:26,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:22:26,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948379893] [2021-11-22 16:22:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:26,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:22:26,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:22:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:22:26,908 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 16:22:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:27,028 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2021-11-22 16:22:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:22:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 16 [2021-11-22 16:22:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:27,030 INFO L225 Difference]: With dead ends: 82 [2021-11-22 16:22:27,030 INFO L226 Difference]: Without dead ends: 82 [2021-11-22 16:22:27,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 16:22:27,031 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 92 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:27,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 68 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-22 16:22:27,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2021-11-22 16:22:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 64 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 16:22:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2021-11-22 16:22:27,036 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 16 [2021-11-22 16:22:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:27,037 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2021-11-22 16:22:27,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 16:22:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2021-11-22 16:22:27,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 16:22:27,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:27,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:27,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:22:27,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash -253272472, now seen corresponding path program 1 times [2021-11-22 16:22:27,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:27,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474772279] [2021-11-22 16:22:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:27,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:27,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:27,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474772279] [2021-11-22 16:22:27,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474772279] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:22:27,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046818052] [2021-11-22 16:22:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:27,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:22:27,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:22:27,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:22:27,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 16:22:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:27,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:22:27,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:22:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:27,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:22:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:27,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046818052] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:22:27,363 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:22:27,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-22 16:22:27,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112791268] [2021-11-22 16:22:27,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:22:27,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:22:27,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:27,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:22:27,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:22:27,366 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 16:22:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:27,409 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions. [2021-11-22 16:22:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:22:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-22 16:22:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:27,411 INFO L225 Difference]: With dead ends: 81 [2021-11-22 16:22:27,411 INFO L226 Difference]: Without dead ends: 81 [2021-11-22 16:22:27,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:22:27,412 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 29 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:27,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 174 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:22:27,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-22 16:22:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-11-22 16:22:27,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 78 states have internal predecessors, (84), 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 16:22:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2021-11-22 16:22:27,417 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 16 [2021-11-22 16:22:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:27,417 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2021-11-22 16:22:27,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 16:22:27,418 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2021-11-22 16:22:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:22:27,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:27,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:27,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:22:27,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:22:27,653 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:27,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1419674412, now seen corresponding path program 1 times [2021-11-22 16:22:27,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:27,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039574440] [2021-11-22 16:22:27,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:27,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:27,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:27,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039574440] [2021-11-22 16:22:27,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039574440] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:22:27,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617676024] [2021-11-22 16:22:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:27,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:22:27,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:22:27,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:22:27,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 16:22:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:27,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 16:22:27,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:22:27,995 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 16:22:28,008 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 16:22:28,182 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 16:22:28,182 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 22 treesize of output 24 [2021-11-22 16:22:28,197 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 16:22:28,198 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 21 treesize of output 21 [2021-11-22 16:22:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:28,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:22:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:22:28,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617676024] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:22:28,675 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:22:28,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2021-11-22 16:22:28,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745251374] [2021-11-22 16:22:28,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:22:28,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:22:28,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:22:28,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:22:28,677 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 16:22:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:28,917 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2021-11-22 16:22:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 16:22:28,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 16:22:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:28,919 INFO L225 Difference]: With dead ends: 94 [2021-11-22 16:22:28,919 INFO L226 Difference]: Without dead ends: 94 [2021-11-22 16:22:28,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-11-22 16:22:28,920 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 174 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:28,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 101 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 65 Unchecked, 0.1s Time] [2021-11-22 16:22:28,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-22 16:22:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2021-11-22 16:22:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 76 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 16:22:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2021-11-22 16:22:28,925 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 18 [2021-11-22 16:22:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:28,925 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2021-11-22 16:22:28,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 16:22:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2021-11-22 16:22:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:22:28,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:28,927 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:28,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:22:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-22 16:22:29,148 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 584462426, now seen corresponding path program 1 times [2021-11-22 16:22:29,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:29,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740532800] [2021-11-22 16:22:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:29,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-22 16:22:29,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:29,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740532800] [2021-11-22 16:22:29,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740532800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:29,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:29,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:22:29,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044903816] [2021-11-22 16:22:29,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:29,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:22:29,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:22:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:22:29,306 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:22:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:29,495 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2021-11-22 16:22:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:22:29,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-22 16:22:29,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:29,497 INFO L225 Difference]: With dead ends: 90 [2021-11-22 16:22:29,497 INFO L226 Difference]: Without dead ends: 90 [2021-11-22 16:22:29,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:22:29,498 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 148 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:29,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 76 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-22 16:22:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 74. [2021-11-22 16:22:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 73 states have internal predecessors, (78), 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 16:22:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2021-11-22 16:22:29,502 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 37 [2021-11-22 16:22:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:29,503 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2021-11-22 16:22:29,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:22:29,503 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2021-11-22 16:22:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:22:29,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:29,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:29,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 16:22:29,510 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:29,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:29,511 INFO L85 PathProgramCache]: Analyzing trace with hash 584462427, now seen corresponding path program 1 times [2021-11-22 16:22:29,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:29,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374518135] [2021-11-22 16:22:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:29,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-22 16:22:29,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:29,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374518135] [2021-11-22 16:22:29,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374518135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:22:29,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:22:29,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:22:29,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412605653] [2021-11-22 16:22:29,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:22:29,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:22:29,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:29,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:22:29,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:22:29,657 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 16:22:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:29,840 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2021-11-22 16:22:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:22:29,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 37 [2021-11-22 16:22:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:29,842 INFO L225 Difference]: With dead ends: 80 [2021-11-22 16:22:29,842 INFO L226 Difference]: Without dead ends: 80 [2021-11-22 16:22:29,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:22:29,843 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 157 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:29,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 54 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:22:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-22 16:22:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2021-11-22 16:22:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 76 states have internal predecessors, (81), 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 16:22:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2021-11-22 16:22:29,847 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 37 [2021-11-22 16:22:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:29,848 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2021-11-22 16:22:29,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 16:22:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2021-11-22 16:22:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 16:22:29,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:29,849 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:29,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 16:22:29,850 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:29,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash -972323179, now seen corresponding path program 1 times [2021-11-22 16:22:29,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:29,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099213398] [2021-11-22 16:22:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:29,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 16:22:30,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:30,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099213398] [2021-11-22 16:22:30,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099213398] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:22:30,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873145724] [2021-11-22 16:22:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:30,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:22:30,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:22:30,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:22:30,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 16:22:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:30,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-22 16:22:30,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:22:30,682 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 16:22:30,683 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 12 treesize of output 14 [2021-11-22 16:22:30,852 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 16:22:30,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-22 16:22:31,083 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-22 16:22:31,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2021-11-22 16:22:31,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 16:22:31,250 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-22 16:22:31,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2021-11-22 16:22:31,400 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-22 16:22:31,401 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 31 treesize of output 15 [2021-11-22 16:22:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:22:31,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-22 16:22:31,579 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 15 treesize of output 7 [2021-11-22 16:22:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:22:31,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:22:37,924 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_DerPreprocessor_2 Int)) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_DerPreprocessor_2)) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) is different from false [2021-11-22 16:22:53,191 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 16:22:53,192 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 27 treesize of output 26 [2021-11-22 16:22:53,318 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-22 16:22:53,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873145724] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:22:53,318 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:22:53,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 18] total 39 [2021-11-22 16:22:53,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140041968] [2021-11-22 16:22:53,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:22:53,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-22 16:22:53,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:22:53,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-22 16:22:53,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1244, Unknown=17, NotChecked=72, Total=1482 [2021-11-22 16:22:53,322 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand has 39 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 39 states have internal predecessors, (99), 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 16:22:54,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:22:54,472 INFO L93 Difference]: Finished difference Result 92 states and 95 transitions. [2021-11-22 16:22:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-22 16:22:54,473 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 39 states have internal predecessors, (99), 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 39 [2021-11-22 16:22:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:22:54,474 INFO L225 Difference]: With dead ends: 92 [2021-11-22 16:22:54,475 INFO L226 Difference]: Without dead ends: 92 [2021-11-22 16:22:54,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=458, Invalid=2181, Unknown=17, NotChecked=100, Total=2756 [2021-11-22 16:22:54,477 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 271 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 172 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:22:54,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 405 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 515 Invalid, 0 Unknown, 172 Unchecked, 0.5s Time] [2021-11-22 16:22:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-22 16:22:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 77. [2021-11-22 16:22:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 76 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 16:22:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2021-11-22 16:22:54,486 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 39 [2021-11-22 16:22:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:22:54,489 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2021-11-22 16:22:54,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 39 states have internal predecessors, (99), 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 16:22:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2021-11-22 16:22:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 16:22:54,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:22:54,498 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:22:54,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:22:54,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-22 16:22:54,723 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:22:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:22:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash 829720554, now seen corresponding path program 1 times [2021-11-22 16:22:54,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:22:54,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269535309] [2021-11-22 16:22:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:54,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:22:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:22:55,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:22:55,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269535309] [2021-11-22 16:22:55,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269535309] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:22:55,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128737986] [2021-11-22 16:22:55,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:22:55,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:22:55,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:22:55,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:22:55,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 16:22:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:22:55,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-22 16:22:55,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:22:55,549 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 16:22:55,550 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 12 treesize of output 14 [2021-11-22 16:22:55,687 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 16:22:55,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-22 16:22:55,818 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-22 16:22:55,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2021-11-22 16:22:55,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 16:22:55,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:22:55,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 16:22:55,988 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 16:22:55,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2021-11-22 16:22:56,221 INFO L354 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2021-11-22 16:22:56,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 49 [2021-11-22 16:22:56,385 INFO L354 Elim1Store]: treesize reduction 136, result has 20.0 percent of original size [2021-11-22 16:22:56,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 71 [2021-11-22 16:22:58,774 INFO L354 Elim1Store]: treesize reduction 228, result has 14.0 percent of original size [2021-11-22 16:22:58,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 74 [2021-11-22 16:22:58,987 INFO L354 Elim1Store]: treesize reduction 146, result has 2.0 percent of original size [2021-11-22 16:22:58,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 107 treesize of output 44 [2021-11-22 16:22:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 31 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:22:59,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:23:04,554 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-22 16:23:04,555 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 62 treesize of output 61 [2021-11-22 16:23:17,015 INFO L354 Elim1Store]: treesize reduction 200, result has 26.5 percent of original size [2021-11-22 16:23:17,015 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 106 treesize of output 95 [2021-11-22 16:23:17,037 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:17,037 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 95 treesize of output 109 [2021-11-22 16:23:17,170 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 4 [2021-11-22 16:23:17,253 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 4 [2021-11-22 16:23:17,301 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:17,301 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 21 treesize of output 25 [2021-11-22 16:23:17,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:23:17,457 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:17,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 116 [2021-11-22 16:23:20,168 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 16:23:20,169 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 16 treesize of output 15 [2021-11-22 16:23:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:23:20,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128737986] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:23:20,194 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:23:20,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 45 [2021-11-22 16:23:20,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418303729] [2021-11-22 16:23:20,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:23:20,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-22 16:23:20,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:23:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-22 16:23:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1868, Unknown=10, NotChecked=0, Total=2070 [2021-11-22 16:23:20,198 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 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 16:23:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:23:21,462 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2021-11-22 16:23:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 16:23:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 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 43 [2021-11-22 16:23:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:23:21,464 INFO L225 Difference]: With dead ends: 83 [2021-11-22 16:23:21,464 INFO L226 Difference]: Without dead ends: 83 [2021-11-22 16:23:21,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 58 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=406, Invalid=2776, Unknown=10, NotChecked=0, Total=3192 [2021-11-22 16:23:21,467 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 51 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 467 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:23:21,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 510 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 365 Invalid, 0 Unknown, 467 Unchecked, 0.4s Time] [2021-11-22 16:23:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-22 16:23:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2021-11-22 16:23:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 80 states have internal predecessors, (87), 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 16:23:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2021-11-22 16:23:21,471 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 43 [2021-11-22 16:23:21,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:23:21,472 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2021-11-22 16:23:21,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 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 16:23:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2021-11-22 16:23:21,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 16:23:21,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:23:21,474 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:23:21,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:23:21,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-22 16:23:21,691 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:23:21,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:23:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash 829720555, now seen corresponding path program 1 times [2021-11-22 16:23:21,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:23:21,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086278660] [2021-11-22 16:23:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:23:21,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:23:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:23:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:23:22,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:23:22,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086278660] [2021-11-22 16:23:22,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086278660] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:23:22,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177378538] [2021-11-22 16:23:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:23:22,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:23:22,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:23:22,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:23:22,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 16:23:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:23:22,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 16:23:22,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:23:22,829 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 16:23:22,829 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 12 treesize of output 14 [2021-11-22 16:23:22,950 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 16:23:22,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-22 16:23:23,166 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-22 16:23:23,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2021-11-22 16:23:23,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 16:23:23,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 16:23:23,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:23:23,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 16:23:23,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:23:23,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 16:23:23,381 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-11-22 16:23:23,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 73 [2021-11-22 16:23:23,399 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-22 16:23:23,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 69 [2021-11-22 16:23:23,694 INFO L354 Elim1Store]: treesize reduction 51, result has 36.3 percent of original size [2021-11-22 16:23:23,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 116 [2021-11-22 16:23:23,718 INFO L354 Elim1Store]: treesize reduction 75, result has 16.7 percent of original size [2021-11-22 16:23:23,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 114 [2021-11-22 16:23:24,690 INFO L354 Elim1Store]: treesize reduction 156, result has 19.6 percent of original size [2021-11-22 16:23:24,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 147 [2021-11-22 16:23:24,734 INFO L354 Elim1Store]: treesize reduction 156, result has 19.6 percent of original size [2021-11-22 16:23:24,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 135 [2021-11-22 16:23:37,779 INFO L354 Elim1Store]: treesize reduction 228, result has 14.0 percent of original size [2021-11-22 16:23:37,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 189 treesize of output 143 [2021-11-22 16:23:37,847 INFO L354 Elim1Store]: treesize reduction 292, result has 14.4 percent of original size [2021-11-22 16:23:37,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 174 treesize of output 155 [2021-11-22 16:23:38,178 INFO L354 Elim1Store]: treesize reduction 146, result has 2.0 percent of original size [2021-11-22 16:23:38,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 107 [2021-11-22 16:23:38,213 INFO L354 Elim1Store]: treesize reduction 122, result has 2.4 percent of original size [2021-11-22 16:23:38,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 55 [2021-11-22 16:23:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:23:38,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:23:41,919 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:41,920 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 151 treesize of output 155 [2021-11-22 16:23:52,806 INFO L354 Elim1Store]: treesize reduction 354, result has 34.8 percent of original size [2021-11-22 16:23:52,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 301 treesize of output 325 [2021-11-22 16:23:52,949 INFO L354 Elim1Store]: treesize reduction 200, result has 26.5 percent of original size [2021-11-22 16:23:52,950 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 325 treesize of output 314 [2021-11-22 16:23:52,976 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:52,976 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 314 treesize of output 328 [2021-11-22 16:23:53,015 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:53,016 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 328 treesize of output 342 [2021-11-22 16:23:53,055 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:53,060 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 342 treesize of output 356 [2021-11-22 16:23:53,245 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 4 [2021-11-22 16:23:53,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:23:53,360 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:53,360 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 16 treesize of output 20 [2021-11-22 16:23:53,575 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-22 16:23:54,096 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 43 treesize of output 27 [2021-11-22 16:23:54,208 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 45 treesize of output 29 [2021-11-22 16:23:54,369 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 43 treesize of output 27 [2021-11-22 16:23:54,734 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 157 treesize of output 129 [2021-11-22 16:23:55,707 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 27 treesize of output 15 [2021-11-22 16:23:55,812 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:55,812 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 199 treesize of output 195 [2021-11-22 16:23:56,404 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 4 [2021-11-22 16:23:57,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:23:57,151 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:23:57,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 422 treesize of output 474 [2021-11-22 16:24:05,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:24:05,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 133 treesize of output 137 [2021-11-22 16:24:06,301 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 69 treesize of output 57 [2021-11-22 16:24:06,401 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 4 [2021-11-22 16:24:06,426 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 15 treesize of output 7 [2021-11-22 16:24:06,438 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 15 treesize of output 7 [2021-11-22 16:24:07,256 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:24:07,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 396 treesize of output 396 [2021-11-22 16:24:16,951 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 4 [2021-11-22 16:24:17,028 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:24:17,029 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 21 treesize of output 25 [2021-11-22 16:24:17,062 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 4 [2021-11-22 16:24:17,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:24:17,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 206 [2021-11-22 16:24:23,080 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 16:24:23,081 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 19 treesize of output 18 [2021-11-22 16:24:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:23,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177378538] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:24:23,100 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:24:23,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 20] total 53 [2021-11-22 16:24:23,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557207376] [2021-11-22 16:24:23,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:24:23,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-22 16:24:23,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-22 16:24:23,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2637, Unknown=8, NotChecked=0, Total=2862 [2021-11-22 16:24:23,103 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 54 states, 53 states have (on average 2.188679245283019) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:26:33,886 WARN L227 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 95 DAG size of output: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 16:26:35,890 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#valid| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|))) (and (= (select |c_#valid| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) 1) (not (= 0 .cse0)) (= .cse0 1) (= (select |c_#length| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) 12) (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (|v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27| Int)) (or (and (forall ((|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int)) (= (select (store (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 8) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|)))) (store .cse1 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) (+ 8 |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (forall ((v_prenex_1 Int)) (<= 0 (select (store (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 8) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))) (store .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ v_prenex_1 4) |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) (+ 8 |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|) v_prenex_1) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)))) (forall ((|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int)) (let ((.cse4 (+ |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 8))) (<= (select (store (select (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))) (store .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) (+ 8 |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|) |ULTIMATE.start_dll_circular_create_~last~0#1.offset|) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) .cse4)))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (< |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27|) (< |v_ULTIMATE.start_dll_circular_create_~head~0#1.offset_27| |v_ULTIMATE.start_main_~ptr~0#1.offset_31|))) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 0))) is different from false [2021-11-22 16:28:31,796 WARN L227 SmtUtils]: Spent 32.72s on a formula simplification. DAG size of input: 53 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 16:30:16,907 WARN L227 SmtUtils]: Spent 41.84s on a formula simplification. DAG size of input: 52 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 16:30:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:30:30,761 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2021-11-22 16:30:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 16:30:30,762 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 2.188679245283019) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-22 16:30:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:30:30,763 INFO L225 Difference]: With dead ends: 87 [2021-11-22 16:30:30,764 INFO L226 Difference]: Without dead ends: 87 [2021-11-22 16:30:30,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 51 SyntacticMatches, 9 SemanticMatches, 68 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1352 ImplicationChecksByTransitivity, 386.1s TimeCoverageRelationStatistics Valid=451, Invalid=4150, Unknown=95, NotChecked=134, Total=4830 [2021-11-22 16:30:30,767 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 45 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 328 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:30:30,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 562 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 450 Invalid, 0 Unknown, 328 Unchecked, 0.5s Time] [2021-11-22 16:30:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-22 16:30:30,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2021-11-22 16:30:30,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 82 states have internal predecessors, (88), 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 16:30:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-11-22 16:30:30,771 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 43 [2021-11-22 16:30:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:30:30,771 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-11-22 16:30:30,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 2.188679245283019) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:30:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-11-22 16:30:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 16:30:30,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:30:30,774 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:30:30,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:30:30,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-22 16:30:30,992 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 31 more)] === [2021-11-22 16:30:30,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:30:30,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1502463451, now seen corresponding path program 1 times [2021-11-22 16:30:30,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:30:30,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697776528] [2021-11-22 16:30:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:30:30,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:30:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:30:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:30:32,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:30:32,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697776528] [2021-11-22 16:30:32,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697776528] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:30:32,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617157268] [2021-11-22 16:30:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:30:32,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:30:32,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:30:32,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:30:32,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5d00c4-c109-40b8-b2e2-39ba08e1e5ae/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 16:30:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:30:32,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 78 conjunts are in the unsatisfiable core [2021-11-22 16:30:32,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:30:32,539 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 16:30:32,540 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 17 treesize of output 21 [2021-11-22 16:30:32,746 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-22 16:30:32,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-22 16:30:32,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 16:30:33,052 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-22 16:30:33,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2021-11-22 16:30:33,365 INFO L354 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2021-11-22 16:30:33,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 33 [2021-11-22 16:30:33,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 16:30:33,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 16:30:33,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-22 16:30:33,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-22 16:30:33,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:33,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 16:30:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:33,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 16:30:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:33,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 77 [2021-11-22 16:30:33,856 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-22 16:30:33,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 92 [2021-11-22 16:30:33,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:33,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-22 16:30:34,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:34,201 INFO L354 Elim1Store]: treesize reduction 47, result has 21.7 percent of original size [2021-11-22 16:30:34,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 123 [2021-11-22 16:30:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:34,218 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-22 16:30:34,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 98 [2021-11-22 16:30:34,234 INFO L354 Elim1Store]: treesize reduction 67, result has 16.3 percent of original size [2021-11-22 16:30:34,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 100 [2021-11-22 16:30:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:34,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:30:34,414 INFO L354 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2021-11-22 16:30:34,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 127 [2021-11-22 16:30:34,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:34,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:30:34,444 INFO L354 Elim1Store]: treesize reduction 134, result has 17.8 percent of original size [2021-11-22 16:30:34,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 154 treesize of output 159 [2021-11-22 16:30:34,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:34,452 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-22 16:30:34,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 140 [2021-11-22 16:30:34,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:30:35,008 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-11-22 16:30:35,009 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 2 case distinctions, treesize of input 143 treesize of output 138 [2021-11-22 16:30:35,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,034 INFO L354 Elim1Store]: treesize reduction 105, result has 9.5 percent of original size [2021-11-22 16:30:35,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 121 [2021-11-22 16:30:35,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,077 INFO L354 Elim1Store]: treesize reduction 109, result has 10.7 percent of original size [2021-11-22 16:30:35,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 89 [2021-11-22 16:30:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:30:35,296 INFO L354 Elim1Store]: treesize reduction 78, result has 9.3 percent of original size [2021-11-22 16:30:35,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 74 [2021-11-22 16:30:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:30:35,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:30:35,313 INFO L354 Elim1Store]: treesize reduction 59, result has 4.8 percent of original size [2021-11-22 16:30:35,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 40 [2021-11-22 16:30:35,518 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 15 treesize of output 7 [2021-11-22 16:30:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:30:35,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:30:59,998 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_14 Int) (v_DerPreprocessor_11 Int) (|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_DerPreprocessor_12 Int) (v_DerPreprocessor_10 Int) (|ULTIMATE.start_main_~data_new~0#1| Int)) (let ((.cse3 (+ |ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4)) (.cse4 (+ |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 8)) (.cse1 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 8)) (.cse8 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4))) (let ((.cse6 (select (store (store (select (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))) (store .cse9 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse3 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse1 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_11) .cse8)) (.cse5 (select (store (store (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse3 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse1 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_10) .cse8))) (or (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse4 v_DerPreprocessor_14)))) (store .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse3 v_DerPreprocessor_13))))) (store .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store (store (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse1 v_DerPreprocessor_12) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| |ULTIMATE.start_main_~data_new~0#1|))) .cse5) .cse6)) (and (= |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| .cse6) (= .cse5 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|)))))) is different from false [2021-11-22 16:31:02,186 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_14 Int) (v_DerPreprocessor_11 Int) (|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_DerPreprocessor_12 Int) (v_DerPreprocessor_15 Int) (v_DerPreprocessor_16 Int) (v_DerPreprocessor_10 Int) (|ULTIMATE.start_main_~data_new~0#1| Int)) (let ((.cse5 (+ |ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4)) (.cse7 (+ |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 8)) (.cse3 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 8)) (.cse10 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select (store (store (select (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_15)))) (store .cse12 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse7 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))))) (store .cse11 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse5 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_10) .cse10)) (.cse1 (select (store (store (select (let ((.cse8 (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_16)))) (store .cse9 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse7 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))))) (store .cse8 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse5 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse3 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| v_DerPreprocessor_11) .cse10))) (or (and (= |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| .cse0) (= |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| .cse1)) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (let ((.cse2 (let ((.cse4 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| |c_ULTIMATE.start_dll_circular_create_~data#1|)))) (store .cse6 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse7 v_DerPreprocessor_14))))) (store .cse4 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) .cse5 v_DerPreprocessor_13))))) (store .cse2 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store (store (select .cse2 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) .cse3 v_DerPreprocessor_12) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| |ULTIMATE.start_main_~data_new~0#1|))) .cse0) .cse1)))))) is different from false [2021-11-22 16:31:02,838 INFO L354 Elim1Store]: treesize reduction 210, result has 22.8 percent of original size [2021-11-22 16:31:02,839 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 576 treesize of output 473 [2021-11-22 16:31:03,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:03,002 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 473 treesize of output 485 [2021-11-22 16:31:03,342 INFO L354 Elim1Store]: treesize reduction 210, result has 22.8 percent of original size [2021-11-22 16:31:03,342 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 485 treesize of output 382 [2021-11-22 16:31:03,411 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:03,411 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 382 treesize of output 394 [2021-11-22 16:31:04,366 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 4 [2021-11-22 16:31:04,551 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:04,551 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 21 treesize of output 25 [2021-11-22 16:31:04,589 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 4 [2021-11-22 16:31:04,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:31:04,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:31:04,741 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:04,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 270 treesize of output 282 [2021-11-22 16:31:04,992 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 4 [2021-11-22 16:31:05,068 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 4 [2021-11-22 16:31:05,096 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:05,096 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 21 treesize of output 25 [2021-11-22 16:31:05,150 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:31:05,151 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 16:31:05,245 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:31:05,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 246 treesize of output 258