./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.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_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/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 eec7850a55859668859d25c9503478e74955da1a .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:46,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:46,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:46,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:46,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:46,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:46,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:46,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:46,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:46,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:46,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:46,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:46,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:46,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:46,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:46,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:46,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:46,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:46,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:46,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:46,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:46,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:46,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:46,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:46,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:46,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:46,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:46,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:46,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:46,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:46,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:46,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:46,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:46,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:46,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:46,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:46,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:46,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:46,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:46,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:46,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:46,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 00:29:46,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:46,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:46,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:46,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:46,662 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:46,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:46,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:29:46,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:46,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:46,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:29:46,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:29:46,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:29:46,665 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:29:46,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:29:46,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:46,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:29:46,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:46,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:46,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:29:46,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:29:46,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:46,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:46,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:29:46,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:29:46,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:46,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:29:46,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:29:46,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:46,669 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_52d775c3-e20a-4970-b165-2bdaf7fb3e43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eec7850a55859668859d25c9503478e74955da1a [2020-11-30 00:29:46,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:46,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:47,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:47,004 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:47,005 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:47,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2020-11-30 00:29:47,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/data/af5dea736/3337b7f1a7714b84a14ad9bc96c911d0/FLAG3ebfc3001 [2020-11-30 00:29:47,528 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:47,528 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2020-11-30 00:29:47,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/data/af5dea736/3337b7f1a7714b84a14ad9bc96c911d0/FLAG3ebfc3001 [2020-11-30 00:29:47,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/data/af5dea736/3337b7f1a7714b84a14ad9bc96c911d0 [2020-11-30 00:29:47,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:47,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:29:47,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:47,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:47,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:47,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:47" (1/1) ... [2020-11-30 00:29:47,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155c13cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:47, skipping insertion in model container [2020-11-30 00:29:47,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:47" (1/1) ... [2020-11-30 00:29:47,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:47,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:48,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:48,204 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:48,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:48,252 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:48,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48 WrapperNode [2020-11-30 00:29:48,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:48,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:48,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:29:48,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:29:48,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:48,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:48,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:48,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:48,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... [2020-11-30 00:29:48,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:48,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:48,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:48,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:48,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/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 [2020-11-30 00:29:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:29:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:29:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:29:48,881 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:48,882 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 00:29:48,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:48 BoogieIcfgContainer [2020-11-30 00:29:48,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:48,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:29:48,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:29:48,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:29:48,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:29:47" (1/3) ... [2020-11-30 00:29:48,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce7ce7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:48, skipping insertion in model container [2020-11-30 00:29:48,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:48" (2/3) ... [2020-11-30 00:29:48,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce7ce7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:48, skipping insertion in model container [2020-11-30 00:29:48,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:48" (3/3) ... [2020-11-30 00:29:48,900 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrpbrk.c [2020-11-30 00:29:48,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:29:48,914 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 00:29:48,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 00:29:48,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:29:48,952 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:29:48,953 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:29:48,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:48,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:48,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:29:48,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:48,954 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:29:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 00:29:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:29:48,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:48,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:29:48,976 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]=== [2020-11-30 00:29:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-30 00:29:48,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:48,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140214883] [2020-11-30 00:29:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:49,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140214883] [2020-11-30 00:29:49,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:49,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:29:49,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572032075] [2020-11-30 00:29:49,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:49,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:49,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:49,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:49,216 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-11-30 00:29:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:49,391 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2020-11-30 00:29:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:49,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 00:29:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:49,405 INFO L225 Difference]: With dead ends: 75 [2020-11-30 00:29:49,405 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:29:49,411 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 [2020-11-30 00:29:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:29:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-11-30 00:29:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 00:29:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-11-30 00:29:49,456 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2020-11-30 00:29:49,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:49,457 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-30 00:29:49,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-11-30 00:29:49,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:29:49,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:49,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:29:49,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:29:49,460 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]=== [2020-11-30 00:29:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:49,465 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-30 00:29:49,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:49,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680060573] [2020-11-30 00:29:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:49,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680060573] [2020-11-30 00:29:49,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:49,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:29:49,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503285341] [2020-11-30 00:29:49,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:49,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:49,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:49,512 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2020-11-30 00:29:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:49,576 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-11-30 00:29:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:49,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 00:29:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:49,578 INFO L225 Difference]: With dead ends: 27 [2020-11-30 00:29:49,578 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 00:29:49,579 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 [2020-11-30 00:29:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 00:29:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2020-11-30 00:29:49,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 00:29:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-30 00:29:49,583 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2020-11-30 00:29:49,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:49,583 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-30 00:29:49,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:49,584 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-30 00:29:49,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:29:49,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:49,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 00:29:49,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:29:49,585 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]=== [2020-11-30 00:29:49,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:49,586 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-11-30 00:29:49,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:49,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463398941] [2020-11-30 00:29:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:49,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463398941] [2020-11-30 00:29:49,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:49,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:29:49,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882224091] [2020-11-30 00:29:49,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:49,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:49,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:49,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:49,616 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2020-11-30 00:29:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:49,682 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-30 00:29:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:49,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 00:29:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:49,683 INFO L225 Difference]: With dead ends: 17 [2020-11-30 00:29:49,683 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:29:49,684 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 [2020-11-30 00:29:49,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:29:49,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:29:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:29:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:29:49,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-30 00:29:49,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:49,685 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:29:49,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:29:49,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:29:49,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:29:49,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:29:49,752 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,752 INFO L274 CegarLoopResult]: For program point L31-1(lines 31 38) no Hoare annotation was computed. [2020-11-30 00:29:49,752 INFO L274 CegarLoopResult]: For program point L31-3(lines 31 38) no Hoare annotation was computed. [2020-11-30 00:29:49,752 INFO L277 CegarLoopResult]: At program point L31-4(lines 31 38) the Hoare annotation is: true [2020-11-30 00:29:49,753 INFO L274 CegarLoopResult]: For program point L31-5(lines 31 38) no Hoare annotation was computed. [2020-11-30 00:29:49,753 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)) [2020-11-30 00:29:49,753 INFO L277 CegarLoopResult]: At program point L19-1(lines 12 20) the Hoare annotation is: true [2020-11-30 00:29:49,753 INFO L277 CegarLoopResult]: At program point L44(lines 42 45) the Hoare annotation is: true [2020-11-30 00:29:49,753 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,753 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 00:29:49,754 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:29:49,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:29:49,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:29:49,755 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-11-30 00:29:49,756 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 35) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L277 CegarLoopResult]: At program point L34-5(lines 34 35) the Hoare annotation is: true [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point L34-6(lines 34 35) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,757 INFO L274 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L274 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L274 CegarLoopResult]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L274 CegarLoopResult]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L274 CegarLoopResult]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:29:49,758 INFO L277 CegarLoopResult]: At program point L39(lines 26 40) the Hoare annotation is: true [2020-11-30 00:29:49,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:29:49 BoogieIcfgContainer [2020-11-30 00:29:49,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:29:49,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:29:49,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:29:49,778 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:29:49,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:48" (3/4) ... [2020-11-30 00:29:49,782 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:29:49,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 00:29:49,794 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:29:49,794 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:29:49,865 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_52d775c3-e20a-4970-b165-2bdaf7fb3e43/bin/uautomizer/witness.graphml [2020-11-30 00:29:49,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:29:49,867 INFO L168 Benchmark]: Toolchain (without parser) took 1943.56 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 74.0 MB in the beginning and 64.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,868 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:49,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.39 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 78.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.54 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,869 INFO L168 Benchmark]: Boogie Preprocessor took 46.86 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:49,870 INFO L168 Benchmark]: RCFGBuilder took 524.38 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 59.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,870 INFO L168 Benchmark]: TraceAbstraction took 891.87 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 67.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,871 INFO L168 Benchmark]: Witness Printer took 87.38 ms. Allocated memory is still 121.6 MB. Free memory was 67.3 MB in the beginning and 64.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:49,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.39 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 78.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.54 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.86 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 524.38 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 59.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 891.87 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 67.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 87.38 ms. Allocated memory is still 121.6 MB. Free memory was 67.3 MB in the beginning and 64.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 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: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: 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, 0.2s 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...