./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/array-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/array-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC --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 a2b6fb2a091639658ccc80ce20cfd1c26b8b4813 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:26:01,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:26:01,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:26:01,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:26:01,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:26:01,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:26:01,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:26:01,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:26:01,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:26:01,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:26:01,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:26:01,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:26:01,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:26:01,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:26:01,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:26:01,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:26:01,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:26:01,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:26:01,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:26:01,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:26:01,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:26:01,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:26:01,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:26:01,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:26:01,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:26:01,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:26:01,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:26:01,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:26:01,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:26:01,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:26:01,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:26:01,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:26:01,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:26:01,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:26:01,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:26:01,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:26:01,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:26:01,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:26:01,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:26:01,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:26:01,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:26:01,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:26:01,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:26:01,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:26:01,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:26:01,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:26:01,910 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:26:01,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:26:01,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:26:01,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:26:01,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:26:01,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:26:01,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:26:01,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:26:01,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:26:01,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:26:01,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:26:01,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:26:01,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:26:01,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:26:01,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:26:01,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:26:01,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:01,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:26:01,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:26:01,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:26:01,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:26:01,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:26:01,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:26:01,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:26:01,916 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_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2b6fb2a091639658ccc80ce20cfd1c26b8b4813 [2021-10-11 00:26:02,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:26:02,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:26:02,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:26:02,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:26:02,200 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:26:02,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loops/array-1.c [2021-10-11 00:26:02,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/data/7565dfe8a/43e85020352640069052a481c14fb1e9/FLAG6e66a3004 [2021-10-11 00:26:02,747 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:26:02,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/sv-benchmarks/c/loops/array-1.c [2021-10-11 00:26:02,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/data/7565dfe8a/43e85020352640069052a481c14fb1e9/FLAG6e66a3004 [2021-10-11 00:26:02,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/data/7565dfe8a/43e85020352640069052a481c14fb1e9 [2021-10-11 00:26:02,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:26:02,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:26:02,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:02,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:26:02,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:26:02,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:02" (1/1) ... [2021-10-11 00:26:02,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63186c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:02, skipping insertion in model container [2021-10-11 00:26:02,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:02" (1/1) ... [2021-10-11 00:26:02,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:26:02,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:26:02,961 WARN L226 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_b285b937-b29a-4aee-b57a-a4c6378d9fa6/sv-benchmarks/c/loops/array-1.c[319,332] [2021-10-11 00:26:02,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:02,984 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:26:02,996 WARN L226 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_b285b937-b29a-4aee-b57a-a4c6378d9fa6/sv-benchmarks/c/loops/array-1.c[319,332] [2021-10-11 00:26:03,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:03,018 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:26:03,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03 WrapperNode [2021-10-11 00:26:03,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:03,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:03,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:26:03,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:26:03,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:03,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:26:03,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:26:03,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:26:03,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... [2021-10-11 00:26:03,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:26:03,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:26:03,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:26:03,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:26:03,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:03,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:26:03,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:26:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:26:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:26:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:26:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:26:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:26:03,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:26:03,450 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:26:03,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:03 BoogieIcfgContainer [2021-10-11 00:26:03,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:26:03,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:26:03,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:26:03,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:26:03,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:26:02" (1/3) ... [2021-10-11 00:26:03,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad02698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:03, skipping insertion in model container [2021-10-11 00:26:03,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:03" (2/3) ... [2021-10-11 00:26:03,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad02698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:03, skipping insertion in model container [2021-10-11 00:26:03,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:03" (3/3) ... [2021-10-11 00:26:03,464 INFO L111 eAbstractionObserver]: Analyzing ICFG array-1.c [2021-10-11 00:26:03,478 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:26:03,481 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:26:03,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:26:03,522 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:26:03,522 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:26:03,522 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:26:03,523 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:26:03,523 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:26:03,523 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:26:03,523 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:26:03,523 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:26:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 00:26:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:26:03,541 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:03,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:26:03,542 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:03,548 INFO L82 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-10-11 00:26:03,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:03,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598912861] [2021-10-11 00:26:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:03,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598912861] [2021-10-11 00:26:03,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:03,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:03,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281992240] [2021-10-11 00:26:03,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:26:03,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:03,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:26:03,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:26:03,717 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2021-10-11 00:26:03,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:03,731 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-11 00:26:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:26:03,732 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 00:26:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:03,740 INFO L225 Difference]: With dead ends: 21 [2021-10-11 00:26:03,740 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 00:26:03,743 INFO L677 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 [2021-10-11 00:26:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 00:26:03,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 00:26:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 00:26:03,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-11 00:26:03,772 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-10-11 00:26:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:03,773 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-11 00:26:03,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:26:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-11 00:26:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:26:03,774 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:03,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:26:03,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:26:03,775 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:03,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2021-10-11 00:26:03,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:03,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256073818] [2021-10-11 00:26:03,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:03,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256073818] [2021-10-11 00:26:03,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:03,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:26:03,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406804620] [2021-10-11 00:26:03,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:03,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:03,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:03,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:03,914 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2021-10-11 00:26:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:03,935 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-10-11 00:26:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:03,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 00:26:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:03,936 INFO L225 Difference]: With dead ends: 16 [2021-10-11 00:26:03,936 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 00:26:03,937 INFO L677 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 [2021-10-11 00:26:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 00:26:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-10-11 00:26:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:26:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-10-11 00:26:03,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-10-11 00:26:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:03,941 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-10-11 00:26:03,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-10-11 00:26:03,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:26:03,942 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:03,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:03,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:26:03,943 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:03,943 INFO L82 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2021-10-11 00:26:03,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:03,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108762819] [2021-10-11 00:26:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:04,494 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 23 [2021-10-11 00:26:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:04,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108762819] [2021-10-11 00:26:04,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090491057] [2021-10-11 00:26:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:26:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:04,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-11 00:26:04,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:04,742 INFO L382 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 17 treesize of output 13 [2021-10-11 00:26:04,743 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:04,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:26:04,756 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:26:04,757 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:5 [2021-10-11 00:26:04,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:26:05,067 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:05,076 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:05,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:26:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:05,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:26:05,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2021-10-11 00:26:05,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072970212] [2021-10-11 00:26:05,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-10-11 00:26:05,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:05,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-11 00:26:05,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:26:05,130 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 12 states. [2021-10-11 00:26:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:05,397 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-11 00:26:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:26:05,399 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 9 [2021-10-11 00:26:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:05,400 INFO L225 Difference]: With dead ends: 21 [2021-10-11 00:26:05,400 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 00:26:05,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-10-11 00:26:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 00:26:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-11 00:26:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:26:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-11 00:26:05,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2021-10-11 00:26:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:05,406 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-11 00:26:05,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-10-11 00:26:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-11 00:26:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:26:05,408 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:05,408 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:05,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 00:26:05,628 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1008925520, now seen corresponding path program 1 times [2021-10-11 00:26:05,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:05,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013472254] [2021-10-11 00:26:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:05,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013472254] [2021-10-11 00:26:05,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419273715] [2021-10-11 00:26:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:26:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:05,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:26:05,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:05,916 INFO L382 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 17 treesize of output 13 [2021-10-11 00:26:05,917 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:05,927 INFO L625 ElimStorePlain]: treesize reduction 5, result has 77.3 percent of original size [2021-10-11 00:26:05,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:26:05,932 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:3 [2021-10-11 00:26:05,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:05,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:05,961 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:26:05,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:26:06,021 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 00:26:06,094 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 00:26:06,095 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:26:06,108 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-10-11 00:26:06,110 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:06,118 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 00:26:06,118 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:06,138 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:26:06,138 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 52 [2021-10-11 00:26:06,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:06,142 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-11 00:26:06,255 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-10-11 00:26:06,256 INFO L625 ElimStorePlain]: treesize reduction 36, result has 76.8 percent of original size [2021-10-11 00:26:06,262 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:26:06,272 INFO L547 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2021-10-11 00:26:06,272 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 13 variables, input treesize:277, output treesize:92 [2021-10-11 00:26:06,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:26:06,350 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:06,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:26:06,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:26:06,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:06,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:06,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:26:06,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:26:06,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:26:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:06,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:26:06,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8] total 9 [2021-10-11 00:26:06,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852400653] [2021-10-11 00:26:06,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:26:06,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:06,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:26:06,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:26:06,649 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 9 states. [2021-10-11 00:26:07,115 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-10-11 00:26:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:07,117 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-11 00:26:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:26:07,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2021-10-11 00:26:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:07,118 INFO L225 Difference]: With dead ends: 17 [2021-10-11 00:26:07,118 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:26:07,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-10-11 00:26:07,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:26:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:26:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:26:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:26:07,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 00:26:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:07,119 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:07,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:26:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:26:07,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:26:07,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:26:07,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:26:07,412 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:26:07,417 INFO L262 CegarLoopResult]: For program point L21-2(lines 21 26) no Hoare annotation was computed. [2021-10-11 00:26:07,418 INFO L258 CegarLoopResult]: At program point L21-3(lines 21 26) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~SIZE~0 1))) (or (and (<= 1 ULTIMATE.start_main_~j~0) (< (div ULTIMATE.start_main_~j~0 4294967296) (+ (div ULTIMATE.start_main_~SIZE~0 4294967296) 1)) .cse0 (<= ULTIMATE.start_main_~menor~0 (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) |ULTIMATE.start_main_~#array~0.offset|))) (and (= |ULTIMATE.start_main_~#array~0.offset| 0) (= ULTIMATE.start_main_~j~0 0) .cse0))) [2021-10-11 00:26:07,418 INFO L262 CegarLoopResult]: For program point L21-4(lines 21 26) no Hoare annotation was computed. [2021-10-11 00:26:07,418 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 00:26:07,418 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:26:07,418 INFO L265 CegarLoopResult]: At program point L30(lines 13 31) the Hoare annotation is: true [2021-10-11 00:26:07,418 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:26:07,419 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:26:07,419 INFO L262 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-10-11 00:26:07,419 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-11 00:26:07,419 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 00:26:07,419 INFO L265 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-10-11 00:26:07,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:26:07 BoogieIcfgContainer [2021-10-11 00:26:07,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:26:07,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:07,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:07,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:07,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:03" (3/4) ... [2021-10-11 00:26:07,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:26:07,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 00:26:07,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:26:07,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:26:07,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:26:07,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b285b937-b29a-4aee-b57a-a4c6378d9fa6/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:26:07,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:07,517 INFO L168 Benchmark]: Toolchain (without parser) took 4742.28 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 50.7 MB in the beginning and 75.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,517 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 83.9 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:07,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.05 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 50.5 MB in the beginning and 76.3 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,519 INFO L168 Benchmark]: Boogie Preprocessor took 52.23 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:07,519 INFO L168 Benchmark]: RCFGBuilder took 324.19 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 60.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,520 INFO L168 Benchmark]: TraceAbstraction took 3983.41 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 60.4 MB in the beginning and 77.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,520 INFO L168 Benchmark]: Witness Printer took 78.36 ms. Allocated memory is still 125.8 MB. Free memory was 77.7 MB in the beginning and 75.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:07,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 83.9 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.05 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 50.5 MB in the beginning and 76.3 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.23 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 324.19 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 60.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3983.41 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 60.4 MB in the beginning and 77.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 78.36 ms. Allocated memory is still 125.8 MB. Free memory was 77.7 MB in the beginning and 75.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((1 <= j && j / 4294967296 < SIZE / 4294967296 + 1) && SIZE == 1) && menor <= unknown-#memory_int-unknown[array][array]) || ((array == 0 && j == 0) && SIZE == 1) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 21 SDslu, 29 SDs, 0 SdLazy, 100 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 3 FomulaSimplifications, 165 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 7 QuantifiedInterpolants, 6520 SizeOfPredicates, 17 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6/12 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...