./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0c74f0cc26425c1a044a70e86941b5dd82b132ff ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:59:44,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:44,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:44,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:44,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:44,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:44,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:44,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:44,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:44,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:44,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:44,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:44,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:44,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:44,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:44,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:44,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:44,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:44,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:44,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:44,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:44,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:44,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:44,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:44,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:44,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:44,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:44,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:44,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:44,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:44,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:44,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:44,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:44,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:44,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:44,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:44,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:44,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:44,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:44,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:44,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:44,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:59:44,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:44,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:44,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:44,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:44,960 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:44,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:44,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:59:44,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:44,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:44,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:44,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:44,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:44,963 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:59:44,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:44,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:44,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:44,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:44,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:44,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:44,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:44,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:44,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:44,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:44,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:44,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:44,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:44,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:44,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:44,967 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-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c74f0cc26425c1a044a70e86941b5dd82b132ff [2020-11-28 02:59:45,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:45,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:45,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:45,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:45,314 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:45,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2020-11-28 02:59:45,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/data/92609d27b/2c7eaf318d31434ba32097681eea0b5a/FLAGf51639ac5 [2020-11-28 02:59:46,095 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:46,096 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2020-11-28 02:59:46,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/data/92609d27b/2c7eaf318d31434ba32097681eea0b5a/FLAGf51639ac5 [2020-11-28 02:59:46,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/data/92609d27b/2c7eaf318d31434ba32097681eea0b5a [2020-11-28 02:59:46,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:46,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:46,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:46,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:46,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:46,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7060b3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46, skipping insertion in model container [2020-11-28 02:59:46,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:46,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:46,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:46,708 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:46,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:46,743 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:46,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46 WrapperNode [2020-11-28 02:59:46,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:46,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:46,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:46,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:46,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:46,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:46,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:46,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:46,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... [2020-11-28 02:59:46,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:46,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:46,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:46,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:46,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/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 [2020-11-28 02:59:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:59:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 02:59:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:46,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:59:47,561 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:47,562 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 02:59:47,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:47 BoogieIcfgContainer [2020-11-28 02:59:47,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:47,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:47,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:47,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:47,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:46" (1/3) ... [2020-11-28 02:59:47,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8a7f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:47, skipping insertion in model container [2020-11-28 02:59:47,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:46" (2/3) ... [2020-11-28 02:59:47,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8a7f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:47, skipping insertion in model container [2020-11-28 02:59:47,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:47" (3/3) ... [2020-11-28 02:59:47,580 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrspn.c [2020-11-28 02:59:47,593 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:47,599 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 02:59:47,614 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 02:59:47,659 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:47,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:47,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:47,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:47,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:47,662 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:47,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:47,663 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-28 02:59:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:59:47,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:47,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:59:47,691 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:59:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:47,700 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-28 02:59:47,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:47,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215012562] [2020-11-28 02:59:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:47,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215012562] [2020-11-28 02:59:47,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:47,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:47,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034665828] [2020-11-28 02:59:47,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:47,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:47,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:47,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:47,928 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-11-28 02:59:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:48,064 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2020-11-28 02:59:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:48,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 02:59:48,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:48,085 INFO L225 Difference]: With dead ends: 75 [2020-11-28 02:59:48,089 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 02:59:48,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 02:59:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-11-28 02:59:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:59:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-11-28 02:59:48,134 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2020-11-28 02:59:48,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:48,135 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-28 02:59:48,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:48,135 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-11-28 02:59:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:59:48,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:48,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:59:48,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:48,137 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:59:48,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:48,138 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-28 02:59:48,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:48,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857340427] [2020-11-28 02:59:48,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:48,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857340427] [2020-11-28 02:59:48,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:48,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:48,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128005646] [2020-11-28 02:59:48,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:48,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:48,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:48,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:48,176 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2020-11-28 02:59:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:48,240 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-11-28 02:59:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:48,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 02:59:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:48,242 INFO L225 Difference]: With dead ends: 27 [2020-11-28 02:59:48,243 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 02:59:48,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 02:59:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2020-11-28 02:59:48,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 02:59:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 02:59:48,252 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2020-11-28 02:59:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:48,252 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 02:59:48,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 02:59:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 02:59:48,254 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:48,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 02:59:48,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:59:48,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:59:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-11-28 02:59:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:48,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117192030] [2020-11-28 02:59:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:48,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117192030] [2020-11-28 02:59:48,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:48,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:48,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009167209] [2020-11-28 02:59:48,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:48,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:48,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:48,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:48,297 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2020-11-28 02:59:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:48,363 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-28 02:59:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:48,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 02:59:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:48,364 INFO L225 Difference]: With dead ends: 17 [2020-11-28 02:59:48,364 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:59:48,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:48,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:59:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:59:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:59:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:59:48,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 02:59:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:48,366 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:48,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:48,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:59:48,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:59:48,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:59:48,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:59:48,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,398 INFO L274 CegarLoopResult]: For program point L31-1(lines 31 38) no Hoare annotation was computed. [2020-11-28 02:59:48,398 INFO L274 CegarLoopResult]: For program point L31-3(lines 31 38) no Hoare annotation was computed. [2020-11-28 02:59:48,398 INFO L277 CegarLoopResult]: At program point L31-4(lines 31 38) the Hoare annotation is: true [2020-11-28 02:59:48,398 INFO L274 CegarLoopResult]: For program point L31-5(lines 31 38) no Hoare annotation was computed. [2020-11-28 02:59:48,399 INFO L270 CegarLoopResult]: At program point L19(lines 12 20) the Hoare annotation is: (and (<= 1 ULTIMATE.start_build_nondet_String_~length~0) (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)) [2020-11-28 02:59:48,399 INFO L277 CegarLoopResult]: At program point L19-1(lines 12 20) the Hoare annotation is: true [2020-11-28 02:59:48,399 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,399 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 02:59:48,399 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 35) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,401 INFO L277 CegarLoopResult]: At program point L34-5(lines 34 35) the Hoare annotation is: true [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L34-6(lines 34 35) no Hoare annotation was computed. [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,402 INFO L274 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-11-28 02:59:48,403 INFO L274 CegarLoopResult]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2020-11-28 02:59:48,403 INFO L274 CegarLoopResult]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2020-11-28 02:59:48,403 INFO L277 CegarLoopResult]: At program point L43(lines 42 44) the Hoare annotation is: true [2020-11-28 02:59:48,403 INFO L274 CegarLoopResult]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2020-11-28 02:59:48,403 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 02:59:48,403 INFO L277 CegarLoopResult]: At program point L39(lines 26 40) the Hoare annotation is: true [2020-11-28 02:59:48,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:48 BoogieIcfgContainer [2020-11-28 02:59:48,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:48,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:48,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:48,422 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:48,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:47" (3/4) ... [2020-11-28 02:59:48,426 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:59:48,443 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 02:59:48,444 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:59:48,444 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:59:48,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9c879c86-b745-4f95-8600-b4358e95e495/bin/uautomizer/witness.graphml [2020-11-28 02:59:48,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:48,537 INFO L168 Benchmark]: Toolchain (without parser) took 2094.54 ms. Allocated memory is still 92.3 MB. Free memory was 62.5 MB in the beginning and 38.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,538 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 69.2 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:48,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.62 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 70.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 92.3 MB. Free memory was 70.1 MB in the beginning and 68.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,540 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:48,541 INFO L168 Benchmark]: RCFGBuilder took 730.28 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 50.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,543 INFO L168 Benchmark]: TraceAbstraction took 852.67 ms. Allocated memory is still 92.3 MB. Free memory was 49.8 MB in the beginning and 41.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,544 INFO L168 Benchmark]: Witness Printer took 110.54 ms. Allocated memory is still 92.3 MB. Free memory was 41.5 MB in the beginning and 38.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:48,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 69.2 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.62 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 70.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 92.3 MB. Free memory was 70.1 MB in the beginning and 68.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 730.28 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 50.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 852.67 ms. Allocated memory is still 92.3 MB. Free memory was 49.8 MB in the beginning and 41.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Witness Printer took 110.54 ms. Allocated memory is still 92.3 MB. Free memory was 41.5 MB in the beginning and 38.4 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: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 <= length && length <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 47 SDslu, 20 SDs, 0 SdLazy, 52 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 15 NumberOfFragments, 12 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...