./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a425935058ca162f2ae5199ba6a1c3df525b690e27394effb254039bf608ee75 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:10:33,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:10:33,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:10:33,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:10:33,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:10:33,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:10:33,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:10:33,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:10:33,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:10:33,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:10:33,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:10:33,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:10:33,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:10:33,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:10:33,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:10:33,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:10:33,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:10:33,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:10:33,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:10:33,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:10:33,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:10:33,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:10:33,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:10:33,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:10:33,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:10:33,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:10:33,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:10:33,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:10:33,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:10:33,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:10:33,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:10:33,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:10:33,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:10:33,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:10:33,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:10:33,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:10:33,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:10:33,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:10:33,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:10:33,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:10:33,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:10:33,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:10:33,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:10:33,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:10:33,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:10:33,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:10:33,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:10:33,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:10:33,850 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:10:33,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:10:33,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:10:33,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:10:33,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:10:33,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:10:33,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:10:33,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:10:33,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:10:33,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:10:33,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:10:33,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:10:33,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:10:33,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:10:33,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:10:33,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:10:33,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:33,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:10:33,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:10:33,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:10:33,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:10:33,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:10:33,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:10:33,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:10:33,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:10:33,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:10:33,862 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_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a425935058ca162f2ae5199ba6a1c3df525b690e27394effb254039bf608ee75 [2021-10-28 23:10:34,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:10:34,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:10:34,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:10:34,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:10:34,253 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:10:34,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2021-10-28 23:10:34,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/data/7e32ff382/bf1fa8f0173e4c9eb328772314b31833/FLAGa414bcba3 [2021-10-28 23:10:34,898 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:10:34,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2021-10-28 23:10:34,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/data/7e32ff382/bf1fa8f0173e4c9eb328772314b31833/FLAGa414bcba3 [2021-10-28 23:10:35,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/data/7e32ff382/bf1fa8f0173e4c9eb328772314b31833 [2021-10-28 23:10:35,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:10:35,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:10:35,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:35,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:10:35,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:10:35,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142e0a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35, skipping insertion in model container [2021-10-28 23:10:35,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:10:35,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:10:35,504 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_4618706e-829e-42fe-b26c-660996d7d085/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2021-10-28 23:10:35,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:35,548 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:10:35,563 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_4618706e-829e-42fe-b26c-660996d7d085/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2021-10-28 23:10:35,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:35,587 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:10:35,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35 WrapperNode [2021-10-28 23:10:35,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:35,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:10:35,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:10:35,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:10:35,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:10:35,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:10:35,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:10:35,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:10:35,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:10:35,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:10:35,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:10:35,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:10:35,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (1/1) ... [2021-10-28 23:10:35,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:35,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:10:35,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:10:35,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:10:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:10:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:10:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:10:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:10:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:10:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:10:36,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:10:36,038 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-28 23:10:36,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:36 BoogieIcfgContainer [2021-10-28 23:10:36,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:10:36,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:10:36,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:10:36,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:10:36,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:10:35" (1/3) ... [2021-10-28 23:10:36,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df37cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:36, skipping insertion in model container [2021-10-28 23:10:36,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:35" (2/3) ... [2021-10-28 23:10:36,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df37cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:36, skipping insertion in model container [2021-10-28 23:10:36,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:36" (3/3) ... [2021-10-28 23:10:36,064 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2021-10-28 23:10:36,071 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:10:36,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 23:10:36,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:10:36,180 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:10:36,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:10:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 19 states have (on average 1.631578947368421) internal successors, (31), 21 states have internal predecessors, (31), 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) [2021-10-28 23:10:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:10:36,209 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:36,209 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:36,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:10:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 119391765, now seen corresponding path program 1 times [2021-10-28 23:10:36,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:36,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815545657] [2021-10-28 23:10:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:36,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:36,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:36,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815545657] [2021-10-28 23:10:36,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815545657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:36,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:36,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:10:36,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890545812] [2021-10-28 23:10:36,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:10:36,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:36,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:10:36,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:10:36,432 INFO L87 Difference]: Start difference. First operand has 22 states, 19 states have (on average 1.631578947368421) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:36,452 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2021-10-28 23:10:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:10:36,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-28 23:10:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:36,464 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:10:36,464 INFO L226 Difference]: Without dead ends: 18 [2021-10-28 23:10:36,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:10:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-28 23:10:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 23:10:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-10-28 23:10:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-10-28 23:10:36,508 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2021-10-28 23:10:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:36,509 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-10-28 23:10:36,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-28 23:10:36,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:10:36,510 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:36,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:36,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:10:36,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:10:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash 176709649, now seen corresponding path program 1 times [2021-10-28 23:10:36,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:36,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040413658] [2021-10-28 23:10:36,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:36,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:36,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:36,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040413658] [2021-10-28 23:10:36,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040413658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:36,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:36,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:10:36,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799714995] [2021-10-28 23:10:36,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:10:36,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:10:36,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:10:36,845 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:37,002 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-10-28 23:10:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:10:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-28 23:10:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:37,004 INFO L225 Difference]: With dead ends: 31 [2021-10-28 23:10:37,005 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:10:37,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:10:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:10:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2021-10-28 23:10:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 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) [2021-10-28 23:10:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-10-28 23:10:37,014 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 8 [2021-10-28 23:10:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:37,015 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 23:10:37,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-10-28 23:10:37,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:10:37,016 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:37,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:37,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:10:37,017 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:10:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1981911752, now seen corresponding path program 1 times [2021-10-28 23:10:37,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:37,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088732448] [2021-10-28 23:10:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:37,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:37,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:37,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088732448] [2021-10-28 23:10:37,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088732448] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:37,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:37,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:10:37,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306570403] [2021-10-28 23:10:37,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:10:37,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:37,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:10:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:10:37,099 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:37,110 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-10-28 23:10:37,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:10:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 23:10:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:37,112 INFO L225 Difference]: With dead ends: 29 [2021-10-28 23:10:37,112 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 23:10:37,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:10:37,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 23:10:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-28 23:10:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-10-28 23:10:37,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-10-28 23:10:37,120 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2021-10-28 23:10:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:37,121 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-28 23:10:37,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:10:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-28 23:10:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:10:37,122 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:37,123 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:37,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:10:37,123 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:10:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1303994310, now seen corresponding path program 1 times [2021-10-28 23:10:37,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:37,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797371040] [2021-10-28 23:10:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:37,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:37,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:37,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797371040] [2021-10-28 23:10:37,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797371040] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:10:37,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775133627] [2021-10-28 23:10:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:37,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:10:37,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:10:37,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:10:37,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:10:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:37,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:10:37,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:10:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:38,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775133627] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:10:38,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:10:38,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-10-28 23:10:38,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112770031] [2021-10-28 23:10:38,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:10:38,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:38,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:10:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:10:38,375 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-28 23:10:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:38,718 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-10-28 23:10:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:10:38,719 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) Word has length 13 [2021-10-28 23:10:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:38,720 INFO L225 Difference]: With dead ends: 33 [2021-10-28 23:10:38,720 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 23:10:38,721 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:10:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 23:10:38,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2021-10-28 23:10:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2021-10-28 23:10:38,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:10:38,737 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2021-10-28 23:10:38,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:38,739 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:10:38,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-28 23:10:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 23:10:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:10:38,742 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:38,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:38,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:10:38,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:10:38,969 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:10:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -993111123, now seen corresponding path program 1 times [2021-10-28 23:10:38,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:38,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192181615] [2021-10-28 23:10:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:38,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:39,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:39,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192181615] [2021-10-28 23:10:39,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192181615] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:10:39,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304739003] [2021-10-28 23:10:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:39,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:10:39,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:10:39,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:10:39,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:10:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:40,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:10:40,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:10:43,968 INFO L354 Elim1Store]: treesize reduction 464, result has 1.5 percent of original size [2021-10-28 23:10:43,969 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 319 treesize of output 183 [2021-10-28 23:10:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:44,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304739003] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:44,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:10:44,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 13 [2021-10-28 23:10:44,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056568464] [2021-10-28 23:10:44,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:10:44,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:44,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:10:44,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:10:44,656 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-28 23:10:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:45,875 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-28 23:10:45,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:10:45,876 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 23:10:45,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:45,877 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:10:45,877 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:10:45,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:10:45,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:10:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:10:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-28 23:10:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:10:45,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-28 23:10:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:45,879 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:10:45,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-28 23:10:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:10:45,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:10:45,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:10:45,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:10:45,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 23:10:46,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:10:46,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:10:46,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:10:46,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:10:46,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:10:46,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:10:46,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2021-10-28 23:10:46,575 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:10:46,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:10:46,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:10:46,576 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2021-10-28 23:10:46,576 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 59) no Hoare annotation was computed. [2021-10-28 23:10:46,576 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-10-28 23:10:46,576 INFO L857 garLoopResultBuilder]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2021-10-28 23:10:46,577 INFO L853 garLoopResultBuilder]: At program point L45-1(lines 20 51) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (or (and (<= ULTIMATE.start_main_~index1~0 (+ 99999 (* 4294967296 (div ULTIMATE.start_main_~index1~0 4294967296)))) (<= ULTIMATE.start_main_~index2~0 (+ 99999 .cse0)) (= ULTIMATE.start_main_~loop_entered~0 0)) (let ((.cse5 (div (+ ULTIMATE.start_main_~index2~0 1) 4294967296)) (.cse4 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296))) (and (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse1 (select .cse3 (+ (* ULTIMATE.start_main_~index2~0 4) (* .cse5 (- 17179869184)) 4 |ULTIMATE.start_main_~#array~0.offset|)))) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* ULTIMATE.start_main_~index1~0 4) (- 4) |ULTIMATE.start_main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ .cse1 (* .cse2 (- 1))) 4294967296)) .cse2))))) (<= (+ ULTIMATE.start_main_~index1~0 (* 4294967296 .cse5)) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 .cse4) 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse0)))))) [2021-10-28 23:10:46,577 INFO L857 garLoopResultBuilder]: For program point L45-2(lines 34 61) no Hoare annotation was computed. [2021-10-28 23:10:46,577 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 61) no Hoare annotation was computed. [2021-10-28 23:10:46,577 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:10:46,578 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2021-10-28 23:10:46,578 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 23 29) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~index2~0 (+ 99999 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (< (mod ULTIMATE.start_main_~index1~0 4294967296) (mod ULTIMATE.start_main_~index2~0 4294967296))) [2021-10-28 23:10:46,578 INFO L857 garLoopResultBuilder]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2021-10-28 23:10:46,578 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-28 23:10:46,579 INFO L853 garLoopResultBuilder]: At program point L25-5(lines 23 29) the Hoare annotation is: (let ((.cse4 (div (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (let ((.cse3 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296)) (.cse5 (* 4294967296 .cse4))) (and (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse0 (select .cse2 (+ (* ULTIMATE.start_main_~index2~0 4) (* .cse4 (- 17179869184)) 4 |ULTIMATE.start_main_~#array~0.offset|)))) (<= .cse0 (let ((.cse1 (select .cse2 (+ (* .cse3 (- 17179869184)) (* ULTIMATE.start_main_~index1~0 4) (- 4) |ULTIMATE.start_main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ .cse0 (* .cse1 (- 1))) 4294967296)) .cse1))))) (<= (+ ULTIMATE.start_main_~index1~0 .cse5) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 .cse3) 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse5))))) [2021-10-28 23:10:46,579 INFO L853 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse6 (* ULTIMATE.start_main_~index1~0 4)) (.cse5 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|)) (.cse8 (* ULTIMATE.start_main_~index2~0 4)) (.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse7 (div ULTIMATE.start_main_~index2~0 4294967296))) (let ((.cse1 (* 4294967296 .cse7)) (.cse2 (div ULTIMATE.start_main_~index1~0 4294967296))) (and .cse0 (<= ULTIMATE.start_main_~index2~0 (+ 99999 .cse1)) (<= (+ ULTIMATE.start_main_~index1~0 .cse1 1) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 .cse2))) (let ((.cse3 (select .cse5 (+ (* .cse7 (- 17179869184)) .cse8 |ULTIMATE.start_main_~#array~0.offset|)))) (<= .cse3 (let ((.cse4 (select .cse5 (+ .cse6 (* .cse2 (- 17179869184)) |ULTIMATE.start_main_~#array~0.offset|)))) (+ .cse4 (* 4294967296 (div (+ (* .cse4 (- 1)) .cse3) 4294967296))))))))) (let ((.cse12 (div (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (let ((.cse11 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296)) (.cse13 (* 4294967296 .cse12))) (and (let ((.cse9 (select .cse5 (+ .cse8 (* .cse12 (- 17179869184)) 4 |ULTIMATE.start_main_~#array~0.offset|)))) (<= .cse9 (let ((.cse10 (select .cse5 (+ (* .cse11 (- 17179869184)) .cse6 (- 4) |ULTIMATE.start_main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ .cse9 (* .cse10 (- 1))) 4294967296)) .cse10)))) (<= (+ ULTIMATE.start_main_~index1~0 .cse13) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 .cse11) 1)) .cse0 (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse13))))))) [2021-10-28 23:10:46,579 INFO L857 garLoopResultBuilder]: For program point L21-2(line 21) no Hoare annotation was computed. [2021-10-28 23:10:46,579 INFO L857 garLoopResultBuilder]: For program point L21-4(line 21) no Hoare annotation was computed. [2021-10-28 23:10:46,579 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-10-28 23:10:46,580 INFO L857 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-10-28 23:10:46,593 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 23:10:46,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:10:46,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:10:46 BoogieIcfgContainer [2021-10-28 23:10:46,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:10:46,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:10:46,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:10:46,659 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:10:46,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:36" (3/4) ... [2021-10-28 23:10:46,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:10:46,689 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-28 23:10:46,698 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:10:46,698 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:10:46,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:10:46,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:10:46,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:10:46,789 INFO L168 Benchmark]: Toolchain (without parser) took 11539.58 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 56.5 MB in the beginning and 80.1 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:46,789 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 98.6 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:46,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.43 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 73.0 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.61 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,792 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 70.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,792 INFO L168 Benchmark]: RCFGBuilder took 380.29 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 59.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,793 INFO L168 Benchmark]: TraceAbstraction took 10603.88 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 83.3 MB in the end (delta: -24.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,794 INFO L168 Benchmark]: Witness Printer took 129.34 ms. Allocated memory is still 119.5 MB. Free memory was 83.3 MB in the beginning and 80.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:46,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 98.6 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.43 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 73.0 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.61 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 70.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 380.29 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 59.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10603.88 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 83.3 MB in the end (delta: -24.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. * Witness Printer took 129.34 ms. Allocated memory is still 119.5 MB. Free memory was 83.3 MB in the beginning and 80.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 89 SDslu, 87 SDs, 0 SdLazy, 148 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 472 HoareAnnotationTreeSize, 4 FomulaSimplifications, 479 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 353 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 1522 SizeOfPredicates, 20 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (1 == cond && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && index1 % 4294967296 < index2 % 4294967296 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((1 <= cond && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && index1 + 4294967296 * (index2 / 4294967296) + 1 <= index2 + 4294967296 * (index1 / 4294967296)) && unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] <= unknown-#memory_int-unknown[array][index1 * 4 + index1 / 4294967296 * -17179869184 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 * 4 + index1 / 4294967296 * -17179869184 + array] * -1 + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array]) / 4294967296)) || (((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] <= 4294967296 * ((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] * -1) / 4294967296) + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] && index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1) && 1 <= cond) && index2 <= 99998 + 4294967296 * ((index2 + 1) / 4294967296)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] <= 4294967296 * ((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] * -1) / 4294967296) + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] && index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1) && 1 <= cond) && index2 <= 99998 + 4294967296 * ((index2 + 1) / 4294967296) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((index1 <= 99999 + 4294967296 * (index1 / 4294967296) && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && loop_entered == 0) || (((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] <= 4294967296 * ((unknown-#memory_int-unknown[array][index2 * 4 + (index2 + 1) / 4294967296 * -17179869184 + 4 + array] + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] * -1) / 4294967296) + unknown-#memory_int-unknown[array][(-1 + index1) / 4294967296 * -17179869184 + index1 * 4 + -4 + array] && index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1) && 1 <= cond) && index2 <= 99998 + 4294967296 * (index2 / 4294967296)) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:10:46,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4618706e-829e-42fe-b26c-660996d7d085/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...