./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array13_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/array-patterns/array13_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78699f7813351c3df7f7fcab3bf98fffd7a92c5cc679034a9d139e9169232d7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:33:00,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:33:00,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:33:00,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:33:00,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:33:00,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:33:00,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:33:00,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:33:00,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:33:00,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:33:00,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:33:00,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:33:00,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:33:00,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:33:00,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:33:00,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:33:00,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:33:00,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:33:00,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:33:00,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:33:00,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:33:00,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:33:00,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:33:00,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:33:00,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:33:00,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:33:00,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:33:00,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:33:00,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:33:00,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:33:00,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:33:00,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:33:00,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:33:00,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:33:00,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:33:00,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:33:00,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:33:00,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:33:00,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:33:00,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:33:00,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:33:00,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 23:33:00,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:33:00,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:33:00,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:33:00,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:33:00,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:33:00,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:33:00,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:33:00,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:33:00,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:33:00,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:33:00,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:33:00,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:33:00,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:33:00,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:33:00,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:33:00,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:33:00,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:33:00,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:33:00,584 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:33:00,585 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:33:00,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:33:00,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:33:00,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:33:00,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:33:00,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:33:00,586 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:33:00,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:33:00,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:33:00,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78699f7813351c3df7f7fcab3bf98fffd7a92c5cc679034a9d139e9169232d7e [2021-11-13 23:33:00,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:33:00,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:33:00,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:33:00,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:33:00,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:33:00,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/array-patterns/array13_pattern.c [2021-11-13 23:33:01,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/data/9de42da07/e24a40407e2149b39b370a4f15f796e5/FLAGc8ec7c64f [2021-11-13 23:33:01,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:33:01,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/sv-benchmarks/c/array-patterns/array13_pattern.c [2021-11-13 23:33:01,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/data/9de42da07/e24a40407e2149b39b370a4f15f796e5/FLAGc8ec7c64f [2021-11-13 23:33:01,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/data/9de42da07/e24a40407e2149b39b370a4f15f796e5 [2021-11-13 23:33:01,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:33:01,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:33:01,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:33:01,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:33:01,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:33:01,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:01" (1/1) ... [2021-11-13 23:33:01,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209b5166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:01, skipping insertion in model container [2021-11-13 23:33:01,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:01" (1/1) ... [2021-11-13 23:33:01,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:33:01,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:33:02,127 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/sv-benchmarks/c/array-patterns/array13_pattern.c[1342,1355] [2021-11-13 23:33:02,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:33:02,184 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:33:02,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/sv-benchmarks/c/array-patterns/array13_pattern.c[1342,1355] [2021-11-13 23:33:02,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:33:02,259 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:33:02,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02 WrapperNode [2021-11-13 23:33:02,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:33:02,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:33:02,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:33:02,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:33:02,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:33:02,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:33:02,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:33:02,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:33:02,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:33:02,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:33:02,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:33:02,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:33:02,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:33:02,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:33:02,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:33:02,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a5ec62-00cf-4e26-9c09-54ae705a0915/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:33:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 23:33:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 23:33:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:33:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:33:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 23:33:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:33:02,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:33:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 23:33:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 23:33:02,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:33:02,806 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-13 23:33:02,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:02 BoogieIcfgContainer [2021-11-13 23:33:02,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:33:02,810 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:33:02,810 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:33:02,821 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:33:02,822 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:02" (1/1) ... [2021-11-13 23:33:02,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:33:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-13 23:33:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-13 23:33:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 23:33:02,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:02,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:03,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 23:33:03,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:33:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2021-11-13 23:33:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-11-13 23:33:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 23:33:03,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:03,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:03,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 23:33:03,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:03,374 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:33:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:03,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-11-13 23:33:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-13 23:33:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 23:33:03,499 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:03,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:03,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:33:03,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:33:03,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:03,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2021-11-13 23:33:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2021-11-13 23:33:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 23:33:03,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:03,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:03,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:33:03,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 23:33:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-11-13 23:33:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-11-13 23:33:04,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:33:04,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:04,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:04,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:33:04,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 23:33:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2021-11-13 23:33:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2021-11-13 23:33:04,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 23:33:04,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:04,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:04,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 23:33:04,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:04,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 23:33:04,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 23:33:05,336 INFO L354 Elim1Store]: treesize reduction 350, result has 2.0 percent of original size [2021-11-13 23:33:05,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 152 treesize of output 120 [2021-11-13 23:33:05,407 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 23:33:05,426 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 56 treesize of output 22 [2021-11-13 23:33:05,702 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 42 treesize of output 30 [2021-11-13 23:33:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:33:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:07,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 40 states and 68 transitions. [2021-11-13 23:33:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-11-13 23:33:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 23:33:07,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:07,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:07,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:07,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 23:33:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2021-11-13 23:33:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2021-11-13 23:33:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 23:33:08,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:08,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:08,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:08,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 23:33:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2021-11-13 23:33:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2021-11-13 23:33:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 23:33:09,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:09,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:09,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:09,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:33:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 45 states and 80 transitions. [2021-11-13 23:33:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2021-11-13 23:33:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 23:33:09,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:09,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:10,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:10,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 23:33:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 48 states and 88 transitions. [2021-11-13 23:33:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2021-11-13 23:33:11,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 23:33:11,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:11,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:11,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:11,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 23:33:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 49 states and 88 transitions. [2021-11-13 23:33:11,441 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 88 transitions. [2021-11-13 23:33:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 23:33:11,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:11,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:11,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:11,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-13 23:33:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 104 transitions. [2021-11-13 23:33:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 104 transitions. [2021-11-13 23:33:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 23:33:13,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:13,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:13,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 23:33:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:13,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 65 states and 110 transitions. [2021-11-13 23:33:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 110 transitions. [2021-11-13 23:33:13,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 23:33:13,935 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:13,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:13,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 23:33:13,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 23:33:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 53 states and 84 transitions. [2021-11-13 23:33:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 84 transitions. [2021-11-13 23:33:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 23:33:14,311 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:14,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:14,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-13 23:33:14,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:14,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-13 23:33:14,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-13 23:33:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:14,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 91 [2021-11-13 23:33:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:14,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 24 [2021-11-13 23:33:15,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,430 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 23:33:15,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 98 [2021-11-13 23:33:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 14 [2021-11-13 23:33:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,680 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 23:33:15,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 115 [2021-11-13 23:33:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:15,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 36 [2021-11-13 23:33:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,335 INFO L354 Elim1Store]: treesize reduction 766, result has 15.7 percent of original size [2021-11-13 23:33:17,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 184 treesize of output 261 [2021-11-13 23:33:17,792 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 23:33:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:17,870 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-13 23:33:17,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 51 [2021-11-13 23:33:21,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:21,091 INFO L354 Elim1Store]: treesize reduction 154, result has 1.9 percent of original size [2021-11-13 23:33:21,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 139 treesize of output 64 [2021-11-13 23:33:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:33:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:33:36,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 78 states and 160 transitions. [2021-11-13 23:33:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 160 transitions. [2021-11-13 23:33:36,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 23:33:36,338 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:33:36,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:33:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:33:36,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-13 23:33:36,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:33:36,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-13 23:33:36,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-13 23:33:37,244 INFO L354 Elim1Store]: treesize reduction 120, result has 20.5 percent of original size [2021-11-13 23:33:37,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 87 [2021-11-13 23:33:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:37,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 19 [2021-11-13 23:33:38,065 INFO L354 Elim1Store]: treesize reduction 291, result has 19.6 percent of original size [2021-11-13 23:33:38,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 128 [2021-11-13 23:33:38,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 25 [2021-11-13 23:33:38,521 INFO L354 Elim1Store]: treesize reduction 268, result has 18.0 percent of original size [2021-11-13 23:33:38,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 79 treesize of output 115 [2021-11-13 23:33:38,559 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 23:33:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:33:38,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 39 [2021-11-13 23:37:14,059 INFO L354 Elim1Store]: treesize reduction 874, result has 12.8 percent of original size [2021-11-13 23:37:14,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 184 treesize of output 246 [2021-11-13 23:37:14,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 23:37:14,809 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-13 23:37:14,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 62 [2021-11-13 23:38:41,234 INFO L354 Elim1Store]: treesize reduction 333, result has 0.9 percent of original size [2021-11-13 23:38:41,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 149 treesize of output 64 [2021-11-13 23:38:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.