./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test27-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test27-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b17e864f5b8145df67cb2b3dc045f82af33b1bd3c9c5e4c95275bcb385f71da --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:27:46,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:27:46,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:27:46,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:27:46,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:27:46,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:27:46,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:27:46,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:27:46,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:27:46,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:27:46,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:27:46,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:27:46,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:27:46,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:27:46,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:27:46,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:27:46,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:27:46,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:27:46,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:27:46,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:27:46,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:27:46,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:27:46,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:27:46,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:27:46,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:27:46,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:27:46,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:27:46,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:27:46,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:27:46,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:27:46,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:27:46,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:27:46,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:27:46,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:27:46,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:27:46,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:27:46,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:27:46,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:27:46,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:27:46,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:27:46,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:27:46,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 18:27:46,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:27:46,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:27:46,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:27:46,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:27:46,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:27:46,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:27:46,561 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 18:27:46,561 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 18:27:46,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:27:46,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:27:46,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 18:27:46,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:27:46,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:27:46,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:27:46,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:27:46,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:27:46,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 18:27:46,565 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b17e864f5b8145df67cb2b3dc045f82af33b1bd3c9c5e4c95275bcb385f71da [2021-12-06 18:27:46,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:27:46,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:27:46,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:27:46,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:27:46,775 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:27:46,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-regression/test27-2.c [2021-12-06 18:27:46,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/data/59fbadf01/de531b85414b4791bac45285a974aee4/FLAGaf58d2a4b [2021-12-06 18:27:47,178 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:27:47,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/sv-benchmarks/c/ldv-regression/test27-2.c [2021-12-06 18:27:47,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/data/59fbadf01/de531b85414b4791bac45285a974aee4/FLAGaf58d2a4b [2021-12-06 18:27:47,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/data/59fbadf01/de531b85414b4791bac45285a974aee4 [2021-12-06 18:27:47,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:27:47,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:27:47,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:27:47,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:27:47,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:27:47,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777c275d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47, skipping insertion in model container [2021-12-06 18:27:47,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:27:47,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:27:47,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237] [2021-12-06 18:27:47,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:27:47,348 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:27:47,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237] [2021-12-06 18:27:47,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:27:47,377 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:27:47,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47 WrapperNode [2021-12-06 18:27:47,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:27:47,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:27:47,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:27:47,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:27:47,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,425 INFO L137 Inliner]: procedures = 16, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2021-12-06 18:27:47,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:27:47,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:27:47,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:27:47,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:27:47,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:27:47,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:27:47,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:27:47,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:27:47,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (1/1) ... [2021-12-06 18:27:47,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:47,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:47,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:47,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 18:27:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:27:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:27:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:27:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:27:47,566 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:27:47,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:27:47,759 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:27:47,763 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:27:47,764 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 18:27:47,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:27:47 BoogieIcfgContainer [2021-12-06 18:27:47,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:27:47,766 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 18:27:47,766 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 18:27:47,768 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 18:27:47,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:27:47,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 06:27:47" (1/3) ... [2021-12-06 18:27:47,770 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@257d0c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:27:47, skipping insertion in model container [2021-12-06 18:27:47,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:27:47,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:47" (2/3) ... [2021-12-06 18:27:47,770 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@257d0c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:27:47, skipping insertion in model container [2021-12-06 18:27:47,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:27:47,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:27:47" (3/3) ... [2021-12-06 18:27:47,771 INFO L388 chiAutomizerObserver]: Analyzing ICFG test27-2.c [2021-12-06 18:27:47,803 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 18:27:47,803 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 18:27:47,803 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 18:27:47,803 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 18:27:47,803 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 18:27:47,803 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 18:27:47,803 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 18:27:47,803 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 18:27:47,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-12-06 18:27:47,829 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 18:27:47,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:47,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:47,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:27:47,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:47,835 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 18:27:47,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-12-06 18:27:47,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 18:27:47,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:47,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:47,838 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:27:47,838 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:47,844 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet10#1, main_#t~post9#1, main_~j~0#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1, main_#t~pre19#1, main_#t~mem18#1, main_#t~ret20#1, main_~#cont~0#1.base, main_~#cont~0#1.offset, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#a~0#1.base, main_~#a~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#cont~0#1.base, main_~#cont~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0#1.base, main_~#dummy~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0#1.base, main_~#dummies~0#1.offset := #Ultimate.allocOnStack(40);call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~j~0#1 := 0; 15#L29-3true [2021-12-06 18:27:47,844 INFO L793 eck$LassoCheckResult]: Loop: 15#L29-3true assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 17#L29-2true main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 15#L29-3true [2021-12-06 18:27:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 18:27:47,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:47,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359778573] [2021-12-06 18:27:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:47,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:47,951 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:47,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:47,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-12-06 18:27:47,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:47,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558439767] [2021-12-06 18:27:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:47,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:48,007 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:48,023 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-06 18:27:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:48,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208864192] [2021-12-06 18:27:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:48,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:48,060 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:48,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:48,775 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:27:48,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:27:48,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:27:48,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:27:48,776 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:27:48,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:48,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:27:48,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:27:48,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: test27-2.c_Iteration1_Lasso [2021-12-06 18:27:48,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:27:48,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:27:48,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:48,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:48,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:48,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:27:49,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:27:49,302 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:27:49,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:49,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:49,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:49,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 18:27:49,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:27:49,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:27:49,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:27:49,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:27:49,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:27:49,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:27:49,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:27:49,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:27:49,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:27:49,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:49,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:49,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 18:27:49,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:27:49,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:27:49,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:27:49,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:27:49,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:27:49,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:27:49,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:27:49,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:27:49,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 18:27:49,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:49,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:49,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:49,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 18:27:49,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:27:49,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:27:49,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:27:49,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:27:49,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:27:49,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:27:49,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:27:49,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:27:49,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:27:49,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-06 18:27:49,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:49,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:49,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 18:27:49,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:27:49,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:27:49,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:27:49,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:27:49,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:27:49,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:27:49,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:27:49,431 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:27:49,461 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-06 18:27:49,461 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-06 18:27:49,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:27:49,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:49,464 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:27:49,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 18:27:49,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:27:49,474 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 18:27:49,474 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:27:49,474 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -8*ULTIMATE.start_main_~j~0#1 + 19*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [] [2021-12-06 18:27:49,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 18:27:49,592 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2021-12-06 18:27:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:49,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:27:49,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:27:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:49,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:27:49,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:27:49,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-06 18:27:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:49,713 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 18:27:49,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:49,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 56 transitions. Complement of second has 8 states. [2021-12-06 18:27:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 18:27:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-12-06 18:27:49,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-06 18:27:49,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:27:49,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 18:27:49,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:27:49,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 18:27:49,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:27:49,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 56 transitions. [2021-12-06 18:27:49,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:49,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 9 states and 11 transitions. [2021-12-06 18:27:49,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 18:27:49,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 18:27:49,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-12-06 18:27:49,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:27:49,817 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-12-06 18:27:49,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-12-06 18:27:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-06 18:27:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-12-06 18:27:49,839 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-12-06 18:27:49,839 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-12-06 18:27:49,839 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 18:27:49,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-12-06 18:27:49,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:49,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:49,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:49,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 18:27:49,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:49,841 INFO L791 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet10#1, main_#t~post9#1, main_~j~0#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1, main_#t~pre19#1, main_#t~mem18#1, main_#t~ret20#1, main_~#cont~0#1.base, main_~#cont~0#1.offset, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#a~0#1.base, main_~#a~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#cont~0#1.base, main_~#cont~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0#1.base, main_~#dummy~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0#1.base, main_~#dummies~0#1.offset := #Ultimate.allocOnStack(40);call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~j~0#1 := 0; 201#L29-3 assume !(main_~j~0#1 < 10); 202#L29-4 assume main_~i~0#1 >= 0 && main_~i~0#1 < 9;call write~int(main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);call write~$Pointer$(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, 4);call write~$Pointer$(main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call write~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_#t~mem11#1.base, main_#t~mem11#1.offset + 4 * main_~i~0#1, 4);call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_#t~mem12#1.base, main_#t~mem12#1.offset, 4);main_~pa~0#1.base, main_~pa~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset + 4 * main_~i~0#1;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem12#1.base, main_#t~mem12#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset;call main_#t~mem14#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 205#L42 assume main_#t~mem14#1 > 0;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call main_#t~mem16#1.base, main_#t~mem16#1.offset := read~$Pointer$(main_#t~mem15#1.base, main_#t~mem15#1.offset, 4);call main_#t~mem17#1 := read~int(main_#t~mem16#1.base, main_#t~mem16#1.offset + 4 * main_~i~0#1, 4);main_~i~0#1 := main_#t~mem17#1 - 10;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem16#1.base, main_#t~mem16#1.offset;havoc main_#t~mem17#1; 206#L44-3 [2021-12-06 18:27:49,841 INFO L793 eck$LassoCheckResult]: Loop: 206#L44-3 call main_#t~mem18#1 := read~int(main_~pa~0#1.base, main_~pa~0#1.offset, 4); 207#L44-1 assume !!(main_~i~0#1 < main_#t~mem18#1);havoc main_#t~mem18#1;main_#t~pre19#1 := 1 + main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;havoc main_#t~pre19#1; 206#L44-3 [2021-12-06 18:27:49,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:49,842 INFO L85 PathProgramCache]: Analyzing trace with hash 28697000, now seen corresponding path program 1 times [2021-12-06 18:27:49,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:49,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464755899] [2021-12-06 18:27:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:49,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:49,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:27:49,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464755899] [2021-12-06 18:27:49,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464755899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:27:49,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:27:49,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:27:49,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386543912] [2021-12-06 18:27:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:27:49,902 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 18:27:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2021-12-06 18:27:49,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891920551] [2021-12-06 18:27:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:49,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:49,909 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:49,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:49,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:27:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:27:49,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:27:49,942 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:27:49,953 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-06 18:27:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:27:49,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 18:27:49,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:49,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 11 transitions. [2021-12-06 18:27:49,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 18:27:49,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 18:27:49,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2021-12-06 18:27:49,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:27:49,956 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-06 18:27:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2021-12-06 18:27:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-12-06 18:27:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-06 18:27:49,957 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 18:27:49,957 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 18:27:49,957 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 18:27:49,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-12-06 18:27:49,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:49,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:49,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:49,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:27:49,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:49,959 INFO L791 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet10#1, main_#t~post9#1, main_~j~0#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1, main_#t~pre19#1, main_#t~mem18#1, main_#t~ret20#1, main_~#cont~0#1.base, main_~#cont~0#1.offset, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#a~0#1.base, main_~#a~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#cont~0#1.base, main_~#cont~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0#1.base, main_~#dummy~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0#1.base, main_~#dummies~0#1.offset := #Ultimate.allocOnStack(40);call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~j~0#1 := 0; 226#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 227#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 228#L29-3 assume !(main_~j~0#1 < 10); 229#L29-4 assume main_~i~0#1 >= 0 && main_~i~0#1 < 9;call write~int(main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);call write~$Pointer$(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, 4);call write~$Pointer$(main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call write~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_#t~mem11#1.base, main_#t~mem11#1.offset + 4 * main_~i~0#1, 4);call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_#t~mem12#1.base, main_#t~mem12#1.offset, 4);main_~pa~0#1.base, main_~pa~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset + 4 * main_~i~0#1;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem12#1.base, main_#t~mem12#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset;call main_#t~mem14#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 230#L42 assume main_#t~mem14#1 > 0;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call main_#t~mem16#1.base, main_#t~mem16#1.offset := read~$Pointer$(main_#t~mem15#1.base, main_#t~mem15#1.offset, 4);call main_#t~mem17#1 := read~int(main_#t~mem16#1.base, main_#t~mem16#1.offset + 4 * main_~i~0#1, 4);main_~i~0#1 := main_#t~mem17#1 - 10;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem16#1.base, main_#t~mem16#1.offset;havoc main_#t~mem17#1; 231#L44-3 [2021-12-06 18:27:49,959 INFO L793 eck$LassoCheckResult]: Loop: 231#L44-3 call main_#t~mem18#1 := read~int(main_~pa~0#1.base, main_~pa~0#1.offset, 4); 232#L44-1 assume !!(main_~i~0#1 < main_#t~mem18#1);havoc main_#t~mem18#1;main_#t~pre19#1 := 1 + main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;havoc main_#t~pre19#1; 231#L44-3 [2021-12-06 18:27:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1809669606, now seen corresponding path program 1 times [2021-12-06 18:27:49,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:49,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375171754] [2021-12-06 18:27:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:49,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:27:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375171754] [2021-12-06 18:27:50,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375171754] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:27:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036286365] [2021-12-06 18:27:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:50,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:27:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:50,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:27:50,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 18:27:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:50,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:27:50,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:27:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:27:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036286365] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:27:50,114 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:27:50,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 18:27:50,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915773332] [2021-12-06 18:27:50,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:27:50,114 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 18:27:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 2 times [2021-12-06 18:27:50,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:50,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855468997] [2021-12-06 18:27:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:50,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:50,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:50,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:50,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:27:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:27:50,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:27:50,142 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-12-06 18:27:50,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:27:50,164 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-12-06 18:27:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:27:50,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-12-06 18:27:50,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:50,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-12-06 18:27:50,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 18:27:50,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 18:27:50,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-12-06 18:27:50,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:27:50,167 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:27:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-12-06 18:27:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-06 18:27:50,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:27:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-12-06 18:27:50,169 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:27:50,169 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:27:50,169 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 18:27:50,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-12-06 18:27:50,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:50,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:50,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:50,171 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2021-12-06 18:27:50,171 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:50,171 INFO L791 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 299#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet10#1, main_#t~post9#1, main_~j~0#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1, main_#t~pre19#1, main_#t~mem18#1, main_#t~ret20#1, main_~#cont~0#1.base, main_~#cont~0#1.offset, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#a~0#1.base, main_~#a~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#cont~0#1.base, main_~#cont~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0#1.base, main_~#dummy~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0#1.base, main_~#dummies~0#1.offset := #Ultimate.allocOnStack(40);call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~j~0#1 := 0; 294#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 295#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 296#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 297#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 304#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 308#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 307#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 306#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 305#L29-3 assume !(main_~j~0#1 < 10); 300#L29-4 assume main_~i~0#1 >= 0 && main_~i~0#1 < 9;call write~int(main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);call write~$Pointer$(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, 4);call write~$Pointer$(main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call write~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_#t~mem11#1.base, main_#t~mem11#1.offset + 4 * main_~i~0#1, 4);call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_#t~mem12#1.base, main_#t~mem12#1.offset, 4);main_~pa~0#1.base, main_~pa~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset + 4 * main_~i~0#1;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem12#1.base, main_#t~mem12#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset;call main_#t~mem14#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 301#L42 assume main_#t~mem14#1 > 0;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call main_#t~mem16#1.base, main_#t~mem16#1.offset := read~$Pointer$(main_#t~mem15#1.base, main_#t~mem15#1.offset, 4);call main_#t~mem17#1 := read~int(main_#t~mem16#1.base, main_#t~mem16#1.offset + 4 * main_~i~0#1, 4);main_~i~0#1 := main_#t~mem17#1 - 10;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem16#1.base, main_#t~mem16#1.offset;havoc main_#t~mem17#1; 302#L44-3 [2021-12-06 18:27:50,171 INFO L793 eck$LassoCheckResult]: Loop: 302#L44-3 call main_#t~mem18#1 := read~int(main_~pa~0#1.base, main_~pa~0#1.offset, 4); 303#L44-1 assume !!(main_~i~0#1 < main_#t~mem18#1);havoc main_#t~mem18#1;main_#t~pre19#1 := 1 + main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;havoc main_#t~pre19#1; 302#L44-3 [2021-12-06 18:27:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 82232736, now seen corresponding path program 2 times [2021-12-06 18:27:50,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780195138] [2021-12-06 18:27:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:50,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:50,238 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:27:50,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780195138] [2021-12-06 18:27:50,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780195138] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:27:50,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242907924] [2021-12-06 18:27:50,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:27:50,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:27:50,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:50,240 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:27:50,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 18:27:50,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 18:27:50,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:27:50,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:27:50,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:27:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:27:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:50,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242907924] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:27:50,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:27:50,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-12-06 18:27:50,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142744127] [2021-12-06 18:27:50,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:27:50,522 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 18:27:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 3 times [2021-12-06 18:27:50,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:50,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225599727] [2021-12-06 18:27:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:50,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:50,528 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:27:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:27:50,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:27:50,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:27:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:27:50,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:27:50,555 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-12-06 18:27:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:27:50,596 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-12-06 18:27:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:27:50,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 28 transitions. [2021-12-06 18:27:50,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:50,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 28 transitions. [2021-12-06 18:27:50,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 18:27:50,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 18:27:50,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2021-12-06 18:27:50,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:27:50,599 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 18:27:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2021-12-06 18:27:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-06 18:27:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 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) [2021-12-06 18:27:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-12-06 18:27:50,601 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 18:27:50,601 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 18:27:50,601 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 18:27:50,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-12-06 18:27:50,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:27:50,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:27:50,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:27:50,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1] [2021-12-06 18:27:50,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:27:50,603 INFO L791 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 425#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet10#1, main_#t~post9#1, main_~j~0#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1, main_#t~pre19#1, main_#t~mem18#1, main_#t~ret20#1, main_~#cont~0#1.base, main_~#cont~0#1.offset, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#a~0#1.base, main_~#a~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#cont~0#1.base, main_~#cont~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0#1.base, main_~#dummy~0#1.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0#1.base, main_~#dummies~0#1.offset := #Ultimate.allocOnStack(40);call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~j~0#1 := 0; 426#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 427#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 428#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 429#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 434#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 450#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 449#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 448#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 447#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 446#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 445#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 444#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 443#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 442#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 441#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 440#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 439#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 438#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 437#L29-3 assume !!(main_~j~0#1 < 10);call write~int(main_#t~nondet10#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~nondet10#1;call write~$Pointer$(0, 0, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * main_~j~0#1, 4); 436#L29-2 main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 435#L29-3 assume !(main_~j~0#1 < 10); 430#L29-4 assume main_~i~0#1 >= 0 && main_~i~0#1 < 9;call write~int(main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);call write~$Pointer$(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, main_~#dummy~0#1.base, main_~#dummy~0#1.offset, 4);call write~$Pointer$(main_~#dummy~0#1.base, main_~#dummy~0#1.offset, main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call write~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset, main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~#cont~0#1.base, main_~#cont~0#1.offset, 4);call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_#t~mem11#1.base, main_#t~mem11#1.offset + 4 * main_~i~0#1, 4);call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_#t~mem12#1.base, main_#t~mem12#1.offset, 4);main_~pa~0#1.base, main_~pa~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset + 4 * main_~i~0#1;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem12#1.base, main_#t~mem12#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset;call main_#t~mem14#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 431#L42 assume main_#t~mem14#1 > 0;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~#dummies~0#1.base, main_~#dummies~0#1.offset + 4 * (1 + main_~i~0#1), 4);call main_#t~mem16#1.base, main_#t~mem16#1.offset := read~$Pointer$(main_#t~mem15#1.base, main_#t~mem15#1.offset, 4);call main_#t~mem17#1 := read~int(main_#t~mem16#1.base, main_#t~mem16#1.offset + 4 * main_~i~0#1, 4);main_~i~0#1 := main_#t~mem17#1 - 10;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem16#1.base, main_#t~mem16#1.offset;havoc main_#t~mem17#1; 432#L44-3 [2021-12-06 18:27:50,603 INFO L793 eck$LassoCheckResult]: Loop: 432#L44-3 call main_#t~mem18#1 := read~int(main_~pa~0#1.base, main_~pa~0#1.offset, 4); 433#L44-1 assume !!(main_~i~0#1 < main_#t~mem18#1);havoc main_#t~mem18#1;main_#t~pre19#1 := 1 + main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;havoc main_#t~pre19#1; 432#L44-3 [2021-12-06 18:27:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:27:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1520933524, now seen corresponding path program 3 times [2021-12-06 18:27:50,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:27:50,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59222794] [2021-12-06 18:27:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:27:50,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:27:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:27:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:27:53,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:27:53,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59222794] [2021-12-06 18:27:53,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59222794] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:27:53,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627612362] [2021-12-06 18:27:53,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 18:27:53,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:27:53,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:27:53,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:27:53,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865d1d6-f061-40fa-834d-b44badd9059f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 18:28:02,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-06 18:28:02,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:28:02,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 127 conjunts are in the unsatisfiable core [2021-12-06 18:28:02,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:28:02,299 INFO L354 Elim1Store]: treesize reduction 130, result has 29.7 percent of original size [2021-12-06 18:28:02,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 63 [2021-12-06 18:28:02,359 INFO L354 Elim1Store]: treesize reduction 117, result has 12.0 percent of original size [2021-12-06 18:28:02,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 60 treesize of output 62 [2021-12-06 18:28:02,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 18:28:02,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:02,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2021-12-06 18:28:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:02,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 [2021-12-06 18:28:03,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2021-12-06 18:28:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2021-12-06 18:28:03,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-12-06 18:28:03,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-12-06 18:28:03,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2021-12-06 18:28:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,515 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-12-06 18:28:03,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 84 [2021-12-06 18:28:03,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 110 [2021-12-06 18:28:03,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:03,962 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-12-06 18:28:03,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 105 treesize of output 124 [2021-12-06 18:28:04,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 171 [2021-12-06 18:28:04,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:04,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:05,009 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-12-06 18:28:05,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 157 [2021-12-06 18:28:06,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 129 [2021-12-06 18:28:06,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,157 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-12-06 18:28:06,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 135 [2021-12-06 18:28:06,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 150 [2021-12-06 18:28:06,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:06,941 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-12-06 18:28:06,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 156 [2021-12-06 18:28:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 63 [2021-12-06 18:28:07,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,804 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2021-12-06 18:28:07,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 28 [2021-12-06 18:28:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 18:28:07,843 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2021-12-06 18:28:07,882 INFO L354 Elim1Store]: treesize reduction 60, result has 32.6 percent of original size [2021-12-06 18:28:07,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 41 [2021-12-06 18:28:07,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:28:07,940 INFO L354 Elim1Store]: treesize reduction 122, result has 26.1 percent of original size [2021-12-06 18:28:07,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 67 [2021-12-06 18:28:07,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 18:28:07,966 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 13 treesize of output 12 [2021-12-06 18:28:07,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2021-12-06 18:28:07,991 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 8 treesize of output 7 [2021-12-06 18:28:08,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-12-06 18:28:08,013 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 19 treesize of output 18 [2021-12-06 18:28:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:28:08,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:28:08,645 INFO L354 Elim1Store]: treesize reduction 42, result has 55.3 percent of original size [2021-12-06 18:28:08,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 4878 treesize of output 4281 [2021-12-06 18:28:08,677 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:28:08,677 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 4230 treesize of output 4049 [2021-12-06 18:28:08,811 INFO L354 Elim1Store]: treesize reduction 75, result has 66.8 percent of original size [2021-12-06 18:28:08,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46157 treesize of output 43617 [2021-12-06 18:28:09,081 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:28:09,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 43449 treesize of output 43106 [2021-12-06 18:28:09,354 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:28:09,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 59756 treesize of output 58503 [2021-12-06 18:28:09,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:28:09,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 66831 treesize of output 66217 [2021-12-06 18:28:10,004 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:28:10,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-12-06 18:28:10,199 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 1234 treesize of output 1162 [2021-12-06 18:28:10,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1158 treesize of output 966 [2021-12-06 18:28:10,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 966 treesize of output 870 [2021-12-06 18:28:10,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 870 treesize of output 822 [2021-12-06 18:35:10,343 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:35:10,343 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 778 treesize of output 782 [2021-12-06 18:35:10,912 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:35:10,913 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 778 treesize of output 782 [2021-12-06 18:35:12,038 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-06 18:35:12,355 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-06 18:35:35,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 256 [2021-12-06 18:35:35,492 WARN L234 Elim1Store]: Array PQE input equivalent to true