./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2of.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2of.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c443a32322d029170cf71bca98c2ac394c12ba940138aa3cb9e35513f4737641 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:40:24,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:24,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:24,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:24,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:24,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:24,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:24,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:24,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:24,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:24,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:24,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:24,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:24,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:24,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:24,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:24,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:24,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:24,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:24,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:24,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:24,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:24,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:24,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:24,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:24,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:24,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:25,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:25,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:25,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:25,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:25,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:25,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:25,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:25,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:25,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:25,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:25,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:25,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:25,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:25,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:25,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:40:25,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:25,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:25,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:25,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:25,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:25,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:25,066 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:25,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:25,067 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:25,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:40:25,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:25,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:25,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:40:25,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:25,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:40:25,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:25,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:40:25,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:25,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:40:25,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:25,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:25,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:25,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:25,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:25,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:25,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:40:25,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:40:25,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:40:25,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:40:25,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:40:25,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:40:25,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:25,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c443a32322d029170cf71bca98c2ac394c12ba940138aa3cb9e35513f4737641 [2021-10-28 23:40:25,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:25,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:25,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:25,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:25,476 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:25,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-fpi/res2of.c [2021-10-28 23:40:25,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/data/b7ffd199f/e0d34d27f66a4f47a46e20f9bb1a24d9/FLAG0f1aaa5eb [2021-10-28 23:40:26,236 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:26,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/sv-benchmarks/c/array-fpi/res2of.c [2021-10-28 23:40:26,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/data/b7ffd199f/e0d34d27f66a4f47a46e20f9bb1a24d9/FLAG0f1aaa5eb [2021-10-28 23:40:26,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/data/b7ffd199f/e0d34d27f66a4f47a46e20f9bb1a24d9 [2021-10-28 23:40:26,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:26,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:40:26,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:26,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:26,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:26,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e29610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26, skipping insertion in model container [2021-10-28 23:40:26,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:26,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:26,841 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/sv-benchmarks/c/array-fpi/res2of.c[589,602] [2021-10-28 23:40:26,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:26,879 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:26,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/sv-benchmarks/c/array-fpi/res2of.c[589,602] [2021-10-28 23:40:26,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:26,927 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:26,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26 WrapperNode [2021-10-28 23:40:26,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:26,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:26,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:40:26,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:40:26,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:26,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:26,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:26,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:26,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:26,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:27,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:27,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:27,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:27,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:27,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:27,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:27,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:27,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (1/1) ... [2021-10-28 23:40:27,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:27,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:27,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:27,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:40:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:40:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:40:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:40:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:40:27,524 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:27,524 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 23:40:27,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:27 BoogieIcfgContainer [2021-10-28 23:40:27,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:27,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:27,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:27,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:27,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:26" (1/3) ... [2021-10-28 23:40:27,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481c2a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:27, skipping insertion in model container [2021-10-28 23:40:27,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:26" (2/3) ... [2021-10-28 23:40:27,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481c2a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:27, skipping insertion in model container [2021-10-28 23:40:27,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:27" (3/3) ... [2021-10-28 23:40:27,539 INFO L111 eAbstractionObserver]: Analyzing ICFG res2of.c [2021-10-28 23:40:27,547 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:27,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:40:27,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:27,652 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:40:27,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:40:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:27,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:40:27,691 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:27,693 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:27,694 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:40:27,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-10-28 23:40:27,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:27,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366842618] [2021-10-28 23:40:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:27,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:27,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:27,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:27,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366842618] [2021-10-28 23:40:27,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366842618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:27,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:27,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:40:27,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24759740] [2021-10-28 23:40:27,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:40:27,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:27,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:40:27,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:40:27,999 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:28,025 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-10-28 23:40:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:40:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-28 23:40:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:28,036 INFO L225 Difference]: With dead ends: 56 [2021-10-28 23:40:28,037 INFO L226 Difference]: Without dead ends: 26 [2021-10-28 23:40:28,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:40:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-28 23:40:28,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 23:40:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-10-28 23:40:28,085 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-10-28 23:40:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:28,086 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-10-28 23:40:28,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-10-28 23:40:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:40:28,088 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:28,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:28,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:40:28,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:40:28,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-10-28 23:40:28,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:28,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112790335] [2021-10-28 23:40:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:28,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:28,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:28,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112790335] [2021-10-28 23:40:28,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112790335] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:28,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:40:28,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919182555] [2021-10-28 23:40:28,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:40:28,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:40:28,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:40:28,225 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:28,406 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-10-28 23:40:28,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:40:28,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-28 23:40:28,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:28,409 INFO L225 Difference]: With dead ends: 57 [2021-10-28 23:40:28,410 INFO L226 Difference]: Without dead ends: 38 [2021-10-28 23:40:28,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:40:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-28 23:40:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-10-28 23:40:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-10-28 23:40:28,424 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-10-28 23:40:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:28,425 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-28 23:40:28,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:28,426 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-10-28 23:40:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:40:28,428 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:28,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:28,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:40:28,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:40:28,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-10-28 23:40:28,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:28,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441673070] [2021-10-28 23:40:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:28,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:28,605 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:40:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:28,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:40:28,750 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:40:28,751 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:40:28,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:40:28,758 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:40:28,763 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:28,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:28 BoogieIcfgContainer [2021-10-28 23:40:28,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:28,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:28,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:28,822 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:28,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:27" (3/4) ... [2021-10-28 23:40:28,826 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:40:28,898 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a35921-1209-4d43-b06c-3d2b94fff703/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:40:28,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:28,900 INFO L168 Benchmark]: Toolchain (without parser) took 2344.67 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 89.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,901 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 79.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:28,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.81 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 100.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 123.7 MB. Free memory was 100.4 MB in the beginning and 98.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,904 INFO L168 Benchmark]: Boogie Preprocessor took 43.09 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 97.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,905 INFO L168 Benchmark]: RCFGBuilder took 505.11 ms. Allocated memory is still 123.7 MB. Free memory was 97.1 MB in the beginning and 84.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,906 INFO L168 Benchmark]: TraceAbstraction took 1291.21 ms. Allocated memory is still 123.7 MB. Free memory was 84.5 MB in the beginning and 93.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,907 INFO L168 Benchmark]: Witness Printer took 76.61 ms. Allocated memory is still 123.7 MB. Free memory was 93.7 MB in the beginning and 89.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:28,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 79.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.81 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 100.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 123.7 MB. Free memory was 100.4 MB in the beginning and 98.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.09 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 97.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 505.11 ms. Allocated memory is still 123.7 MB. Free memory was 97.1 MB in the beginning and 84.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1291.21 ms. Allocated memory is still 123.7 MB. Free memory was 84.5 MB in the beginning and 93.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * Witness Printer took 76.61 ms. Allocated memory is still 123.7 MB. Free memory was 93.7 MB in the beginning and 89.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 VAL [N=1] [L34] COND TRUE i