./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:55:49,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:55:49,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:55:49,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:55:49,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:55:49,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:55:49,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:55:49,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:55:49,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:55:49,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:55:49,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:55:49,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:55:49,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:55:49,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:55:49,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:55:49,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:55:49,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:55:49,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:55:49,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:55:49,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:55:49,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:55:49,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:55:49,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:55:49,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:55:49,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:55:49,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:55:49,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:55:49,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:55:49,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:55:49,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:55:49,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:55:49,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:55:49,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:55:49,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:55:49,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:55:49,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:55:49,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:55:49,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:55:49,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:55:49,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:55:49,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:55:49,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-13 17:55:49,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:55:49,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:55:49,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:55:49,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:55:49,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:55:49,367 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:55:49,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:55:49,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:55:49,369 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:55:49,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:55:49,369 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:55:49,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:55:49,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:55:49,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:55:49,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:55:49,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:55:49,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:55:49,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:55:49,373 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 17:55:49,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:55:49,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:55:49,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:55:49,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:55:49,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:55:49,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:55:49,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:55:49,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:55:49,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:55:49,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:55:49,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:55:49,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:55:49,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:55:49,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:55:49,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:55:49,380 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_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d [2021-11-13 17:55:49,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:55:49,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:55:49,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:55:49,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:55:49,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:55:49,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2021-11-13 17:55:49,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/data/9c81829df/ca542238a9bf468b94792736302199b0/FLAGb31c71ae8 [2021-11-13 17:55:50,579 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:55:50,579 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2021-11-13 17:55:50,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/data/9c81829df/ca542238a9bf468b94792736302199b0/FLAGb31c71ae8 [2021-11-13 17:55:50,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/data/9c81829df/ca542238a9bf468b94792736302199b0 [2021-11-13 17:55:50,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:55:50,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:55:50,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:55:50,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:55:50,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:55:50,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:55:50" (1/1) ... [2021-11-13 17:55:50,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a41dab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:50, skipping insertion in model container [2021-11-13 17:55:50,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:55:50" (1/1) ... [2021-11-13 17:55:50,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:55:50,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:55:51,456 WARN L228 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_8bf38a50-4486-4291-a5a8-352017332acf/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2021-11-13 17:55:51,667 WARN L228 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_8bf38a50-4486-4291-a5a8-352017332acf/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2021-11-13 17:55:51,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:55:51,718 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:55:51,796 WARN L228 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_8bf38a50-4486-4291-a5a8-352017332acf/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2021-11-13 17:55:51,891 WARN L228 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_8bf38a50-4486-4291-a5a8-352017332acf/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2021-11-13 17:55:51,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:55:51,966 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:55:51,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51 WrapperNode [2021-11-13 17:55:51,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:55:51,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:55:51,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:55:51,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:55:51,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:55:52,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:55:52,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:55:52,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:55:52,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:55:52,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:55:52,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:55:52,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:55:52,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (1/1) ... [2021-11-13 17:55:52,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:55:52,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:52,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:55:52,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:55:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:55:52,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:55:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:55:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 17:55:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:55:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:55:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:55:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 17:55:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 17:55:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:55:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:55:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:55:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:55:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:55:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:55:53,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:55:53,929 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-13 17:55:53,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:53 BoogieIcfgContainer [2021-11-13 17:55:53,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:55:53,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:55:53,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:55:53,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:55:53,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:55:50" (1/3) ... [2021-11-13 17:55:53,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1dd2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:53, skipping insertion in model container [2021-11-13 17:55:53,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:51" (2/3) ... [2021-11-13 17:55:53,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1dd2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:53, skipping insertion in model container [2021-11-13 17:55:53,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:53" (3/3) ... [2021-11-13 17:55:53,941 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-2.i [2021-11-13 17:55:53,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:55:53,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-13 17:55:54,058 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:55:54,089 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-11-13 17:55:54,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-13 17:55:54,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 199 states have (on average 1.6984924623115578) internal successors, (338), 212 states have internal predecessors, (338), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:55:54,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:54,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:54,126 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:54,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2021-11-13 17:55:54,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:54,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711227742] [2021-11-13 17:55:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:54,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:54,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:54,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711227742] [2021-11-13 17:55:54,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711227742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:54,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:54,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:55:54,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459227672] [2021-11-13 17:55:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:54,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:55:54,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:55:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:55:54,455 INFO L87 Difference]: Start difference. First operand has 218 states, 199 states have (on average 1.6984924623115578) internal successors, (338), 212 states have internal predecessors, (338), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:54,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:54,518 INFO L93 Difference]: Finished difference Result 434 states and 711 transitions. [2021-11-13 17:55:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:55:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-13 17:55:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:54,539 INFO L225 Difference]: With dead ends: 434 [2021-11-13 17:55:54,539 INFO L226 Difference]: Without dead ends: 185 [2021-11-13 17:55:54,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:55:54,548 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:54,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 4.36ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:55:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-13 17:55:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-11-13 17:55:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 167 states have (on average 1.347305389221557) internal successors, (225), 179 states have internal predecessors, (225), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 241 transitions. [2021-11-13 17:55:54,631 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 241 transitions. Word has length 7 [2021-11-13 17:55:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:54,632 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 241 transitions. [2021-11-13 17:55:54,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 241 transitions. [2021-11-13 17:55:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:55:54,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:54,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:54,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:55:54,635 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2021-11-13 17:55:54,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:54,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522454924] [2021-11-13 17:55:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:54,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:54,667 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:54,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843613033] [2021-11-13 17:55:54,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:54,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:54,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:54,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:54,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:55:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:54,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:55:54,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:54,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 17:55:54,999 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 [2021-11-13 17:55:55,086 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 17:55:55,087 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 11 treesize of output 11 [2021-11-13 17:55:55,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-13 17:55:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:55,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:55,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:55,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522454924] [2021-11-13 17:55:55,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:55,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843613033] [2021-11-13 17:55:55,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843613033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:55,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:55,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:55:55,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682376530] [2021-11-13 17:55:55,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:55,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:55:55,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:55:55,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:55:55,200 INFO L87 Difference]: Start difference. First operand 185 states and 241 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:56,149 INFO L93 Difference]: Finished difference Result 312 states and 412 transitions. [2021-11-13 17:55:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:55:56,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-13 17:55:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:56,154 INFO L225 Difference]: With dead ends: 312 [2021-11-13 17:55:56,155 INFO L226 Difference]: Without dead ends: 310 [2021-11-13 17:55:56,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:56,157 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 195 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 742.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.32ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 845.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:56,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 722 Invalid, 275 Unknown, 0 Unchecked, 15.32ms Time], IncrementalHoareTripleChecker [15 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 845.90ms Time] [2021-11-13 17:55:56,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-13 17:55:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 191. [2021-11-13 17:55:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 173 states have (on average 1.3410404624277457) internal successors, (232), 185 states have internal predecessors, (232), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2021-11-13 17:55:56,187 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 7 [2021-11-13 17:55:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:56,187 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2021-11-13 17:55:56,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:56,188 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2021-11-13 17:55:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-13 17:55:56,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:56,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:56,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:56,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:56,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1931275711, now seen corresponding path program 1 times [2021-11-13 17:55:56,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:56,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112182095] [2021-11-13 17:55:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:56,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:56,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:56,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112182095] [2021-11-13 17:55:56,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112182095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:56,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:56,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:55:56,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568031375] [2021-11-13 17:55:56,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:56,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:55:56,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:56,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:55:56,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:55:56,511 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:56,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:56,932 INFO L93 Difference]: Finished difference Result 352 states and 466 transitions. [2021-11-13 17:55:56,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:55:56,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-11-13 17:55:56,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:56,936 INFO L225 Difference]: With dead ends: 352 [2021-11-13 17:55:56,936 INFO L226 Difference]: Without dead ends: 269 [2021-11-13 17:55:56,937 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 [2021-11-13 17:55:56,938 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 99 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 331.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 390.34ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:56,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 608 Invalid, 126 Unknown, 0 Unchecked, 4.39ms Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 390.34ms Time] [2021-11-13 17:55:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-13 17:55:56,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 191. [2021-11-13 17:55:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 173 states have (on average 1.3352601156069364) internal successors, (231), 185 states have internal predecessors, (231), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 247 transitions. [2021-11-13 17:55:56,968 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 247 transitions. Word has length 44 [2021-11-13 17:55:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:56,969 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 247 transitions. [2021-11-13 17:55:56,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 247 transitions. [2021-11-13 17:55:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:55:56,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:56,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:56,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:55:56,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:56,982 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2021-11-13 17:55:56,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:56,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001802977] [2021-11-13 17:55:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:56,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:57,040 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:57,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56801061] [2021-11-13 17:55:57,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:57,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:57,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:57,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:57,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:55:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:57,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:55:57,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:57,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:57,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:57,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001802977] [2021-11-13 17:55:57,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:57,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56801061] [2021-11-13 17:55:57,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56801061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:57,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:57,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:57,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268803171] [2021-11-13 17:55:57,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:57,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:57,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:57,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:57,428 INFO L87 Difference]: Start difference. First operand 191 states and 247 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:57,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:57,532 INFO L93 Difference]: Finished difference Result 395 states and 517 transitions. [2021-11-13 17:55:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:57,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-13 17:55:57,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:57,535 INFO L225 Difference]: With dead ends: 395 [2021-11-13 17:55:57,536 INFO L226 Difference]: Without dead ends: 212 [2021-11-13 17:55:57,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:57,538 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 9 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.36ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.44ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:57,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 427 Invalid, 72 Unknown, 0 Unchecked, 2.36ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 88.44ms Time] [2021-11-13 17:55:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-13 17:55:57,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2021-11-13 17:55:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 193 states have (on average 1.3005181347150259) internal successors, (251), 205 states have internal predecessors, (251), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2021-11-13 17:55:57,555 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 57 [2021-11-13 17:55:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:57,555 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2021-11-13 17:55:57,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2021-11-13 17:55:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:55:57,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:57,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:57,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:57,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:57,785 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:57,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2021-11-13 17:55:57,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:57,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613854336] [2021-11-13 17:55:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:57,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:57,810 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:57,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988860590] [2021-11-13 17:55:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:57,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:57,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:57,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:57,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:55:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:58,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:55:58,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:58,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:58,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:58,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613854336] [2021-11-13 17:55:58,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:58,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988860590] [2021-11-13 17:55:58,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988860590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:58,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:58,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:55:58,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51035549] [2021-11-13 17:55:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:58,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:55:58,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:55:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:55:58,144 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:58,232 INFO L93 Difference]: Finished difference Result 404 states and 516 transitions. [2021-11-13 17:55:58,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:55:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-13 17:55:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:58,235 INFO L225 Difference]: With dead ends: 404 [2021-11-13 17:55:58,235 INFO L226 Difference]: Without dead ends: 201 [2021-11-13 17:55:58,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:55:58,239 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 206 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.44ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.10ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:58,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 459 Invalid, 66 Unknown, 0 Unchecked, 4.44ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 62.10ms Time] [2021-11-13 17:55:58,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-13 17:55:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2021-11-13 17:55:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 179 states have (on average 1.2849162011173185) internal successors, (230), 191 states have internal predecessors, (230), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 17:55:58,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 246 transitions. [2021-11-13 17:55:58,261 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 246 transitions. Word has length 57 [2021-11-13 17:55:58,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:58,262 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 246 transitions. [2021-11-13 17:55:58,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:58,262 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 246 transitions. [2021-11-13 17:55:58,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:55:58,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:58,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:58,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:58,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:58,498 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2021-11-13 17:55:58,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:58,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541008427] [2021-11-13 17:55:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:58,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:58,520 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:58,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011571851] [2021-11-13 17:55:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:58,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:58,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:58,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:58,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 17:55:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:58,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:55:58,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:59,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:59,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:59,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541008427] [2021-11-13 17:55:59,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:59,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011571851] [2021-11-13 17:55:59,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011571851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:59,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:59,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:59,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6248854] [2021-11-13 17:55:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:59,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:59,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:59,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:59,081 INFO L87 Difference]: Start difference. First operand 197 states and 246 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:59,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:59,182 INFO L93 Difference]: Finished difference Result 490 states and 617 transitions. [2021-11-13 17:55:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:59,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-13 17:55:59,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:59,186 INFO L225 Difference]: With dead ends: 490 [2021-11-13 17:55:59,186 INFO L226 Difference]: Without dead ends: 301 [2021-11-13 17:55:59,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:59,187 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 88 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.61ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:59,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 501 Invalid, 14 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 85.61ms Time] [2021-11-13 17:55:59,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-13 17:55:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2021-11-13 17:55:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 274 states have (on average 1.281021897810219) internal successors, (351), 291 states have internal predecessors, (351), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:55:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 377 transitions. [2021-11-13 17:55:59,204 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 377 transitions. Word has length 57 [2021-11-13 17:55:59,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:59,204 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 377 transitions. [2021-11-13 17:55:59,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 377 transitions. [2021-11-13 17:55:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:55:59,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:59,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:59,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:59,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-13 17:55:59,429 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 17:55:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2118227634, now seen corresponding path program 1 times [2021-11-13 17:55:59,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:59,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450019059] [2021-11-13 17:55:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:59,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:59,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:59,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011049048] [2021-11-13 17:55:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:59,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:59,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:59,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:59,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 17:55:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:59,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-13 17:55:59,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:59,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 17:55:59,750 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 [2021-11-13 17:55:59,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:55:59,809 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 23 treesize of output 18 [2021-11-13 17:55:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:55:59,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:55:59,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-13 17:56:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2021-11-13 17:56:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-13 17:56:01,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2021-11-13 17:56:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-13 17:56:01,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-11-13 17:56:01,426 INFO L354 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2021-11-13 17:56:01,426 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 26 treesize of output 26 [2021-11-13 17:56:01,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 17:56:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:01,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-13 17:56:01,640 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-13 17:56:01,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 43 [2021-11-13 17:56:01,650 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 26 treesize of output 18 [2021-11-13 17:56:01,655 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 11 treesize of output 7 [2021-11-13 17:56:04,156 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-13 17:56:04,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2834 treesize of output 2283 [2021-11-13 17:56:04,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,127 INFO L354 Elim1Store]: treesize reduction 448, result has 17.8 percent of original size [2021-11-13 17:56:06,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 3249 treesize of output 2907 [2021-11-13 17:56:06,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:06,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:13,056 WARN L227 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 452 DAG size of output: 124 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 17:56:13,058 INFO L354 Elim1Store]: treesize reduction 7903, result has 4.7 percent of original size [2021-11-13 17:56:13,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 3461 treesize of output 1958 [2021-11-13 17:56:14,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:14,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-13 17:56:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:14,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2021-11-13 17:56:15,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:15,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:15,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:15,470 INFO L244 Elim1Store]: Index analysis took 470 ms [2021-11-13 17:56:15,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 1022 treesize of output 492 [2021-11-13 17:56:18,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:18,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:18,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:18,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:18,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:56:18,093 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:56:18,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 277 treesize of output 152 [2021-11-13 17:56:18,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:18,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:56:18,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:41,824 WARN L227 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 1408 DAG size of output: 355 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 17:57:41,827 INFO L354 Elim1Store]: treesize reduction 31640, result has 3.3 percent of original size [2021-11-13 17:57:41,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 24 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 36 new quantified variables, introduced 121 case distinctions, treesize of input 1617149 treesize of output 666482 [2021-11-13 17:57:51,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,504 INFO L244 Elim1Store]: Index analysis took 395 ms [2021-11-13 17:57:51,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:51,730 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:51,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 824 treesize of output 380 [2021-11-13 17:57:52,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:52,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:52,312 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-13 17:57:52,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1433253 treesize of output 960826 [2021-11-13 17:57:52,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:52,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:53,129 INFO L354 Elim1Store]: treesize reduction 174, result has 0.6 percent of original size [2021-11-13 17:57:53,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 1432126 treesize of output 960102 [2021-11-13 17:57:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:53,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:53,805 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-13 17:57:53,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1430764 treesize of output 745173 [2021-11-13 17:57:54,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:54,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:54,523 INFO L354 Elim1Store]: treesize reduction 174, result has 0.6 percent of original size [2021-11-13 17:57:54,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1429482 treesize of output 958367 [2021-11-13 17:57:55,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:55,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:55,132 INFO L354 Elim1Store]: treesize reduction 162, result has 0.6 percent of original size [2021-11-13 17:57:55,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 1428471 treesize of output 957677 [2021-11-13 17:57:55,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:55,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:55,803 INFO L354 Elim1Store]: treesize reduction 182, result has 0.5 percent of original size [2021-11-13 17:57:55,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 1427888 treesize of output 957224 [2021-11-13 17:57:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:56,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:56,404 INFO L354 Elim1Store]: treesize reduction 174, result has 0.6 percent of original size [2021-11-13 17:57:56,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 1426382 treesize of output 956278 [2021-11-13 17:57:56,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:56,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:57,020 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-13 17:57:57,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1425335 treesize of output 789712 [2021-11-13 17:57:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:57,403 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:57,506 INFO L354 Elim1Store]: treesize reduction 162, result has 0.6 percent of original size [2021-11-13 17:57:57,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1424383 treesize of output 954924 [2021-11-13 17:57:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:57,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:58,043 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-13 17:57:58,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 1423125 treesize of output 954073 [2021-11-13 17:57:58,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:58,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:58,806 INFO L354 Elim1Store]: treesize reduction 400, result has 0.2 percent of original size [2021-11-13 17:57:58,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 1421503 treesize of output 936997 [2021-11-13 17:57:59,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:59,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:59,303 INFO L354 Elim1Store]: treesize reduction 749, result has 0.1 percent of original size [2021-11-13 17:57:59,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 1419961 treesize of output 1101236 [2021-11-13 17:57:59,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:57:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:57:59,937 INFO L354 Elim1Store]: treesize reduction 1504, result has 0.1 percent of original size [2021-11-13 17:57:59,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 1418938 treesize of output 1100185 [2021-11-13 17:58:00,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:00,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:00,379 INFO L354 Elim1Store]: treesize reduction 1504, result has 0.1 percent of original size [2021-11-13 17:58:00,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 1418239 treesize of output 1099558 [2021-11-13 17:58:00,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:00,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:00,813 INFO L354 Elim1Store]: treesize reduction 2709, result has 0.0 percent of original size [2021-11-13 17:58:00,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1417620 treesize of output 1178013 [2021-11-13 17:58:01,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:01,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:01,282 INFO L354 Elim1Store]: treesize reduction 2202, result has 0.0 percent of original size [2021-11-13 17:58:01,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1367204 treesize of output 1366748 [2021-11-13 17:58:01,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:01,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:01,738 INFO L354 Elim1Store]: treesize reduction 3412, result has 0.0 percent of original size [2021-11-13 17:58:01,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1366369 treesize of output 1365679 [2021-11-13 17:58:02,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:02,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:02,255 INFO L354 Elim1Store]: treesize reduction 4042, result has 0.0 percent of original size [2021-11-13 17:58:02,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1365135 treesize of output 1364319 [2021-11-13 17:58:02,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:02,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:02,725 INFO L354 Elim1Store]: treesize reduction 2382, result has 0.0 percent of original size [2021-11-13 17:58:02,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1363689 treesize of output 1363165 [2021-11-13 17:58:03,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:03,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:03,115 INFO L354 Elim1Store]: treesize reduction 2697, result has 0.0 percent of original size [2021-11-13 17:58:03,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1362798 treesize of output 1362243 [2021-11-13 17:58:03,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:03,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:03,599 INFO L354 Elim1Store]: treesize reduction 2929, result has 0.0 percent of original size [2021-11-13 17:58:03,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1361846 treesize of output 1361231 [2021-11-13 17:58:03,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:03,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:03,959 INFO L354 Elim1Store]: treesize reduction 2152, result has 0.0 percent of original size [2021-11-13 17:58:03,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1360814 treesize of output 1360366 [2021-11-13 17:58:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2021-11-13 17:58:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:56,624 INFO L354 Elim1Store]: treesize reduction 383, result has 0.3 percent of original size [2021-11-13 17:58:56,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 1333 treesize of output 1148 [2021-11-13 17:58:56,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,022 INFO L354 Elim1Store]: treesize reduction 292, result has 15.4 percent of original size [2021-11-13 17:58:57,022 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 6 new quantified variables, introduced 4 case distinctions, treesize of input 274 treesize of output 234 [2021-11-13 17:58:57,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 233 [2021-11-13 17:58:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:57,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 88 [2021-11-13 17:58:58,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:58,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,350 INFO L354 Elim1Store]: treesize reduction 214, result has 12.3 percent of original size [2021-11-13 17:58:58,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 358 treesize of output 261 [2021-11-13 17:58:58,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:58,534 INFO L354 Elim1Store]: treesize reduction 1132, result has 8.8 percent of original size [2021-11-13 17:58:58,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 309 treesize of output 305 [2021-11-13 17:58:58,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:58:58,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:58:58,594 INFO L354 Elim1Store]: treesize reduction 150, result has 19.4 percent of original size [2021-11-13 17:58:58,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 258 treesize of output 221 [2021-11-13 17:58:59,556 INFO L354 Elim1Store]: treesize reduction 988, result has 24.6 percent of original size [2021-11-13 17:58:59,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 46 case distinctions, treesize of input 257 treesize of output 461 [2021-11-13 17:58:59,583 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-13 17:58:59,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 443 treesize of output 350 [2021-11-13 17:58:59,600 INFO L354 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2021-11-13 17:58:59,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 341 treesize of output 292 [2021-11-13 17:58:59,704 INFO L354 Elim1Store]: treesize reduction 278, result has 10.3 percent of original size [2021-11-13 17:58:59,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 39 case distinctions, treesize of input 262 treesize of output 282 [2021-11-13 17:59:49,018 INFO L354 Elim1Store]: treesize reduction 398, result has 23.5 percent of original size [2021-11-13 17:59:49,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 415 treesize of output 391 [2021-11-13 18:01:28,301 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 18:01:28,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 313 treesize of output 157 [2021-11-13 18:01:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 18:01:28,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:01:28,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:28,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450019059] [2021-11-13 18:01:28,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 18:01:28,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011049048] [2021-11-13 18:01:28,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011049048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:28,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:28,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 18:01:28,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10412156] [2021-11-13 18:01:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:28,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:01:28,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:28,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:01:28,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:01:28,348 INFO L87 Difference]: Start difference. First operand 297 states and 377 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:01:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:01:32,567 INFO L93 Difference]: Finished difference Result 323 states and 413 transitions. [2021-11-13 18:01:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:01:32,568 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2021-11-13 18:01:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:01:32,571 INFO L225 Difference]: With dead ends: 323 [2021-11-13 18:01:32,572 INFO L226 Difference]: Without dead ends: 322 [2021-11-13 18:01:32,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:01:32,573 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 125 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2743.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.71ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 3239.85ms IncrementalHoareTripleChecker+Time [2021-11-13 18:01:32,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1569 Invalid, 778 Unknown, 0 Unchecked, 20.71ms Time], IncrementalHoareTripleChecker [39 Valid, 655 Invalid, 0 Unknown, 84 Unchecked, 3239.85ms Time] [2021-11-13 18:01:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-11-13 18:01:32,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 296. [2021-11-13 18:01:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 274 states have (on average 1.2773722627737227) internal successors, (350), 290 states have internal predecessors, (350), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 18:01:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 376 transitions. [2021-11-13 18:01:32,594 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 376 transitions. Word has length 72 [2021-11-13 18:01:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:01:32,594 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 376 transitions. [2021-11-13 18:01:32,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:01:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 376 transitions. [2021-11-13 18:01:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 18:01:32,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:01:32,596 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:01:32,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-13 18:01:32,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-13 18:01:32,813 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 18:01:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:32,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1240547630, now seen corresponding path program 1 times [2021-11-13 18:01:32,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:32,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113401362] [2021-11-13 18:01:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:32,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:32,848 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 18:01:32,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442349787] [2021-11-13 18:01:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:32,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:01:32,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:01:32,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:01:32,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 18:01:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:33,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-13 18:01:33,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:01:33,086 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 [2021-11-13 18:01:33,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 18:01:33,246 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 18:01:33,246 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 [2021-11-13 18:01:33,408 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 23 treesize of output 18 [2021-11-13 18:01:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:33,660 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 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-13 18:01:35,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2021-11-13 18:01:35,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-13 18:01:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2021-11-13 18:01:35,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-13 18:01:35,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-13 18:01:35,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-13 18:01:35,528 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-13 18:01:35,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2021-11-13 18:01:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:35,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-13 18:01:35,751 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-13 18:01:35,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 45 [2021-11-13 18:01:38,367 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-13 18:01:38,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2833 treesize of output 2282 [2021-11-13 18:01:38,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:41,949 INFO L354 Elim1Store]: treesize reduction 448, result has 17.8 percent of original size [2021-11-13 18:01:41,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 3248 treesize of output 2906 [2021-11-13 18:01:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:42,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:42,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:42,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:51,271 WARN L227 SmtUtils]: Spent 9.26s on a formula simplification. DAG size of input: 535 DAG size of output: 129 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 18:01:51,272 INFO L354 Elim1Store]: treesize reduction 11587, result has 3.5 percent of original size [2021-11-13 18:01:51,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 4246 treesize of output 2271 [2021-11-13 18:01:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:52,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 24 [2021-11-13 18:01:52,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:52,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2021-11-13 18:01:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,267 INFO L244 Elim1Store]: Index analysis took 238 ms [2021-11-13 18:01:53,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 920 treesize of output 426 [2021-11-13 18:01:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,902 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:53,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,098 INFO L244 Elim1Store]: Index analysis took 250 ms [2021-11-13 18:01:54,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 913 treesize of output 423 [2021-11-13 18:01:54,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:54,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:55,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:55,265 INFO L244 Elim1Store]: Index analysis took 370 ms [2021-11-13 18:01:55,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 1010 treesize of output 500 [2021-11-13 18:01:56,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 28 [2021-11-13 18:01:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:01:56,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:01:56,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:11,877 WARN L227 SmtUtils]: Spent 15.01s on a formula simplification. DAG size of input: 551 DAG size of output: 159 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 18:02:11,878 INFO L354 Elim1Store]: treesize reduction 19512, result has 2.6 percent of original size [2021-11-13 18:02:11,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 62594 treesize of output 35260 [2021-11-13 18:02:12,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,442 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-11-13 18:02:12,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1801 treesize of output 867 [2021-11-13 18:02:12,678 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 18:02:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:12,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:12,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:13,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:13,427 INFO L244 Elim1Store]: Index analysis took 615 ms [2021-11-13 18:02:14,635 INFO L354 Elim1Store]: treesize reduction 250, result has 42.0 percent of original size [2021-11-13 18:02:14,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 1896 treesize of output 1096 [2021-11-13 18:02:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:15,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:15,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:15,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:15,834 INFO L244 Elim1Store]: Index analysis took 296 ms [2021-11-13 18:02:15,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1857 treesize of output 895 [2021-11-13 18:02:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:16,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:16,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:16,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:16,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:16,447 INFO L244 Elim1Store]: Index analysis took 228 ms [2021-11-13 18:02:16,753 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:02:16,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 1990 treesize of output 1354 [2021-11-13 18:03:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:11,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:11,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:11,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:11,997 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,098 INFO L244 Elim1Store]: Index analysis took 145 ms [2021-11-13 18:03:12,113 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-13 18:03:12,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 3812 treesize of output 2321 [2021-11-13 18:03:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,579 INFO L354 Elim1Store]: treesize reduction 236, result has 0.4 percent of original size [2021-11-13 18:03:12,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 17 case distinctions, treesize of input 8346 treesize of output 6500 [2021-11-13 18:03:12,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:12,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:12,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:13,406 INFO L354 Elim1Store]: treesize reduction 1640, result has 15.3 percent of original size [2021-11-13 18:03:13,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 6777 treesize of output 6141 [2021-11-13 18:03:24,310 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-13 18:03:24,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 6657 treesize of output 5192 [2021-11-13 18:03:25,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,067 INFO L354 Elim1Store]: treesize reduction 270, result has 0.4 percent of original size [2021-11-13 18:03:25,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 4634 treesize of output 4312 [2021-11-13 18:03:25,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:25,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:25,774 INFO L354 Elim1Store]: treesize reduction 915, result has 0.8 percent of original size [2021-11-13 18:03:25,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 4067 treesize of output 2801 [2021-11-13 18:03:26,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:26,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:26,574 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-11-13 18:03:26,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 1718 treesize of output 864 [2021-11-13 18:03:26,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:26,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:26,841 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:26,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 133 treesize of output 69 [2021-11-13 18:03:26,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:26,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:26,912 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:26,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 129 treesize of output 65 [2021-11-13 18:03:26,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:26,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:26,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 1157 treesize of output 820 [2021-11-13 18:03:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,222 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:27,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 440 treesize of output 223 [2021-11-13 18:03:27,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,329 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:27,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 183 treesize of output 103 [2021-11-13 18:03:27,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:27,407 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 18:03:27,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 495 treesize of output 265 [2021-11-13 18:03:27,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:27,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:27,432 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 18:03:27,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 359 treesize of output 185 [2021-11-13 18:03:28,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,986 INFO L354 Elim1Store]: treesize reduction 162, result has 12.9 percent of original size [2021-11-13 18:03:28,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 383 treesize of output 262 [2021-11-13 18:03:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,191 INFO L354 Elim1Store]: treesize reduction 646, result has 11.6 percent of original size [2021-11-13 18:03:29,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 334 treesize of output 284 [2021-11-13 18:03:29,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:03:29,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:03:29,231 INFO L354 Elim1Store]: treesize reduction 122, result has 22.8 percent of original size [2021-11-13 18:03:29,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 283 treesize of output 273 [2021-11-13 18:03:30,305 INFO L354 Elim1Store]: treesize reduction 412, result has 39.4 percent of original size [2021-11-13 18:03:30,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 46 case distinctions, treesize of input 281 treesize of output 413 [2021-11-13 18:03:30,409 INFO L354 Elim1Store]: treesize reduction 326, result has 9.9 percent of original size [2021-11-13 18:03:30,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 39 case distinctions, treesize of input 410 treesize of output 430 [2021-11-13 18:03:30,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:30,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 406 treesize of output 382 [2021-11-13 18:03:30,462 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:03:30,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 373 treesize of output 296 [2021-11-13 18:05:19,253 INFO L354 Elim1Store]: treesize reduction 398, result has 23.5 percent of original size [2021-11-13 18:05:19,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 545 treesize of output 479 [2021-11-13 18:07:13,123 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 18:07:13,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 441 treesize of output 249 [2021-11-13 18:07:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 18:07:13,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:13,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:13,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113401362] [2021-11-13 18:07:13,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 18:07:13,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442349787] [2021-11-13 18:07:13,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442349787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:13,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:07:13,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 18:07:13,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190312396] [2021-11-13 18:07:13,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:13,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:07:13,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:13,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:07:13,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:07:13,300 INFO L87 Difference]: Start difference. First operand 296 states and 376 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:07:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:16,777 INFO L93 Difference]: Finished difference Result 322 states and 412 transitions. [2021-11-13 18:07:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:07:16,778 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2021-11-13 18:07:16,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:16,782 INFO L225 Difference]: With dead ends: 322 [2021-11-13 18:07:16,782 INFO L226 Difference]: Without dead ends: 321 [2021-11-13 18:07:16,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:07:16,783 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 141 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2098.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.78ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 173 IncrementalHoareTripleChecker+Unchecked, 2461.66ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:16,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1372 Invalid, 676 Unknown, 0 Unchecked, 8.78ms Time], IncrementalHoareTripleChecker [49 Valid, 454 Invalid, 0 Unknown, 173 Unchecked, 2461.66ms Time] [2021-11-13 18:07:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-13 18:07:16,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 295. [2021-11-13 18:07:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 274 states have (on average 1.2737226277372262) internal successors, (349), 289 states have internal predecessors, (349), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 18:07:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 375 transitions. [2021-11-13 18:07:16,803 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 375 transitions. Word has length 73 [2021-11-13 18:07:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:16,803 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 375 transitions. [2021-11-13 18:07:16,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:07:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 375 transitions. [2021-11-13 18:07:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-13 18:07:16,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:16,805 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:16,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:17,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-13 18:07:17,025 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 18:07:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:17,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2135855707, now seen corresponding path program 1 times [2021-11-13 18:07:17,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:17,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157375598] [2021-11-13 18:07:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:17,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:17,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 18:07:17,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480615761] [2021-11-13 18:07:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:17,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:17,083 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:17,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 18:07:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:17,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:07:17,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:17,657 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 18:07:17,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:17,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:17,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157375598] [2021-11-13 18:07:17,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 18:07:17,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480615761] [2021-11-13 18:07:17,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480615761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:17,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:07:17,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:07:17,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898632922] [2021-11-13 18:07:17,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:17,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:07:17,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:17,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:07:17,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:07:17,660 INFO L87 Difference]: Start difference. First operand 295 states and 375 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:07:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:17,719 INFO L93 Difference]: Finished difference Result 543 states and 701 transitions. [2021-11-13 18:07:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:07:17,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2021-11-13 18:07:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:17,723 INFO L225 Difference]: With dead ends: 543 [2021-11-13 18:07:17,723 INFO L226 Difference]: Without dead ends: 298 [2021-11-13 18:07:17,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:07:17,724 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 2 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.55ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.44ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:17,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 683 Invalid, 13 Unknown, 0 Unchecked, 1.55ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 37.44ms Time] [2021-11-13 18:07:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-13 18:07:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-11-13 18:07:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 276 states have (on average 1.2753623188405796) internal successors, (352), 292 states have internal predecessors, (352), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-13 18:07:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 379 transitions. [2021-11-13 18:07:17,743 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 379 transitions. Word has length 78 [2021-11-13 18:07:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:17,743 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 379 transitions. [2021-11-13 18:07:17,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:07:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 379 transitions. [2021-11-13 18:07:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 18:07:17,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:17,746 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:17,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:17,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:17,961 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 18:07:17,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash -113198649, now seen corresponding path program 1 times [2021-11-13 18:07:17,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:17,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500550410] [2021-11-13 18:07:17,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:17,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:17,975 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 18:07:17,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551971216] [2021-11-13 18:07:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:17,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:17,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:17,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:17,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 18:07:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 18:07:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:07:18,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:07:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:07:18,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:18,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500550410] [2021-11-13 18:07:18,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 18:07:18,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551971216] [2021-11-13 18:07:18,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551971216] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:07:18,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:07:18,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-13 18:07:18,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889019027] [2021-11-13 18:07:18,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:07:18,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:07:18,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:07:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:07:18,798 INFO L87 Difference]: Start difference. First operand 298 states and 379 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:07:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:18,998 INFO L93 Difference]: Finished difference Result 557 states and 723 transitions. [2021-11-13 18:07:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:07:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 80 [2021-11-13 18:07:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:19,002 INFO L225 Difference]: With dead ends: 557 [2021-11-13 18:07:19,003 INFO L226 Difference]: Without dead ends: 307 [2021-11-13 18:07:19,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:07:19,004 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.36ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.93ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:19,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 901 Invalid, 52 Unknown, 0 Unchecked, 2.36ms Time], IncrementalHoareTripleChecker [14 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 90.93ms Time] [2021-11-13 18:07:19,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-13 18:07:19,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2021-11-13 18:07:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 284 states have (on average 1.2816901408450705) internal successors, (364), 300 states have internal predecessors, (364), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2021-11-13 18:07:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 392 transitions. [2021-11-13 18:07:19,024 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 392 transitions. Word has length 80 [2021-11-13 18:07:19,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:19,024 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 392 transitions. [2021-11-13 18:07:19,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:07:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 392 transitions. [2021-11-13 18:07:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 18:07:19,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:19,027 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:19,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:19,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 18:07:19,257 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 18:07:19,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2043420507, now seen corresponding path program 2 times [2021-11-13 18:07:19,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:19,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297245586] [2021-11-13 18:07:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:19,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:19,287 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 18:07:19,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373713640] [2021-11-13 18:07:19,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:07:19,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:19,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:19,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:19,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 18:07:20,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:07:20,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:07:20,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 18:07:20,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 18:07:20,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:07:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 18:07:20,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:20,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297245586] [2021-11-13 18:07:20,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 18:07:20,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373713640] [2021-11-13 18:07:20,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373713640] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:07:20,585 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:07:20,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-13 18:07:20,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634400209] [2021-11-13 18:07:20,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:07:20,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:07:20,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:07:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:07:20,587 INFO L87 Difference]: Start difference. First operand 307 states and 392 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 18:07:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:21,052 INFO L93 Difference]: Finished difference Result 572 states and 742 transitions. [2021-11-13 18:07:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:07:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 84 [2021-11-13 18:07:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:21,056 INFO L225 Difference]: With dead ends: 572 [2021-11-13 18:07:21,056 INFO L226 Difference]: Without dead ends: 313 [2021-11-13 18:07:21,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:07:21,058 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 27 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.45ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:21,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 908 Invalid, 90 Unknown, 0 Unchecked, 2.45ms Time], IncrementalHoareTripleChecker [20 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 160.31ms Time] [2021-11-13 18:07:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-13 18:07:21,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 311. [2021-11-13 18:07:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 288 states have (on average 1.2847222222222223) internal successors, (370), 304 states have internal predecessors, (370), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-13 18:07:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 397 transitions. [2021-11-13 18:07:21,078 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 397 transitions. Word has length 84 [2021-11-13 18:07:21,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:21,078 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 397 transitions. [2021-11-13 18:07:21,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 18:07:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 397 transitions. [2021-11-13 18:07:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-13 18:07:21,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:21,081 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:21,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:21,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:21,301 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 18:07:21,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:21,301 INFO L85 PathProgramCache]: Analyzing trace with hash 435447717, now seen corresponding path program 3 times [2021-11-13 18:07:21,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:21,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561609876] [2021-11-13 18:07:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:21,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:21,324 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 18:07:21,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915727489] [2021-11-13 18:07:21,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:07:21,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:21,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:21,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:21,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf38a50-4486-4291-a5a8-352017332acf/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process