./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condaf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/condaf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3299ed11d0a8beab5e242433520cd1a21cc68363 ...................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:19:53,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:53,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:53,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:53,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:53,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:53,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:53,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:53,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:53,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:53,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:53,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:53,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:53,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:53,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:53,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:53,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:53,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:53,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:53,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:53,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:53,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:53,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:53,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:53,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:53,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:53,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:53,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:53,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:53,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:53,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:53,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:53,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:53,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:53,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:53,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:53,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:53,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:53,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:53,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:53,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:53,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:19:53,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:53,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:53,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:53,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:53,946 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:53,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:53,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:19:53,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:53,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:19:53,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:53,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:19:53,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:19:53,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:19:53,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:19:53,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:19:53,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:53,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:19:53,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:53,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:53,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:19:53,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:53,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:53,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:19:53,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:19:53,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:53,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:19:53,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:19:53,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:53,957 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_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3299ed11d0a8beab5e242433520cd1a21cc68363 [2021-10-11 00:19:54,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:54,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:54,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:54,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:54,313 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:54,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/array-fpi/condaf.c [2021-10-11 00:19:54,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/data/cb3168d09/c49f9ce3352441ea88a7ec30543f928e/FLAGaa97ab7ab [2021-10-11 00:19:54,904 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:54,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/sv-benchmarks/c/array-fpi/condaf.c [2021-10-11 00:19:54,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/data/cb3168d09/c49f9ce3352441ea88a7ec30543f928e/FLAGaa97ab7ab [2021-10-11 00:19:55,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/data/cb3168d09/c49f9ce3352441ea88a7ec30543f928e [2021-10-11 00:19:55,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:55,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:19:55,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:55,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:55,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:55,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd32ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55, skipping insertion in model container [2021-10-11 00:19:55,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:55,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:55,478 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/sv-benchmarks/c/array-fpi/condaf.c[589,602] [2021-10-11 00:19:55,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:55,500 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:55,511 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/sv-benchmarks/c/array-fpi/condaf.c[589,602] [2021-10-11 00:19:55,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:55,532 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:55,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55 WrapperNode [2021-10-11 00:19:55,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:55,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:55,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:19:55,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:19:55,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:55,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:55,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:55,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:55,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... [2021-10-11 00:19:55,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:55,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:55,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:55,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:55,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:19:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:19:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:19:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:19:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:19:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:19:55,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:55,908 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:19:55,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:55 BoogieIcfgContainer [2021-10-11 00:19:55,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:55,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:19:55,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:19:55,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:19:55,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:19:55" (1/3) ... [2021-10-11 00:19:55,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435622c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:55, skipping insertion in model container [2021-10-11 00:19:55,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:55" (2/3) ... [2021-10-11 00:19:55,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435622c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:55, skipping insertion in model container [2021-10-11 00:19:55,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:55" (3/3) ... [2021-10-11 00:19:55,919 INFO L111 eAbstractionObserver]: Analyzing ICFG condaf.c [2021-10-11 00:19:55,932 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:19:55,935 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:19:55,947 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:19:55,971 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:19:55,971 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:19:55,972 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:19:55,972 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:55,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:55,972 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:19:55,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:55,973 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:19:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2021-10-11 00:19:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:19:55,991 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:55,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:55,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:55,998 INFO L82 PathProgramCache]: Analyzing trace with hash -845640729, now seen corresponding path program 1 times [2021-10-11 00:19:56,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:56,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748299754] [2021-10-11 00:19:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748299754] [2021-10-11 00:19:56,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:56,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:19:56,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944367524] [2021-10-11 00:19:56,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:19:56,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:56,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:19:56,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:19:56,198 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2021-10-11 00:19:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:56,214 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2021-10-11 00:19:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:19:56,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2021-10-11 00:19:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:56,225 INFO L225 Difference]: With dead ends: 40 [2021-10-11 00:19:56,225 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 00:19:56,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:19:56,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 00:19:56,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 00:19:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:19:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-11 00:19:56,269 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2021-10-11 00:19:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:56,270 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-11 00:19:56,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:19:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-11 00:19:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:19:56,271 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:56,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:56,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:19:56,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:56,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1238667739, now seen corresponding path program 1 times [2021-10-11 00:19:56,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:56,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768985906] [2021-10-11 00:19:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:56,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768985906] [2021-10-11 00:19:56,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:56,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:19:56,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864231948] [2021-10-11 00:19:56,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:56,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:56,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:56,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:56,411 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2021-10-11 00:19:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:56,513 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-10-11 00:19:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:56,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 00:19:56,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:56,516 INFO L225 Difference]: With dead ends: 36 [2021-10-11 00:19:56,517 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 00:19:56,518 INFO L677 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 [2021-10-11 00:19:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 00:19:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-10-11 00:19:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-11 00:19:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-10-11 00:19:56,531 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2021-10-11 00:19:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:56,532 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-10-11 00:19:56,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-10-11 00:19:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:19:56,534 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:56,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:56,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:19:56,535 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:56,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2001188913, now seen corresponding path program 1 times [2021-10-11 00:19:56,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:56,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481810605] [2021-10-11 00:19:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:19:57,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481810605] [2021-10-11 00:19:57,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525301841] [2021-10-11 00:19:57,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:57,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:19:57,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:57,296 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:19:57,297 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:57,300 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:57,301 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:57,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2021-10-11 00:19:57,371 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-11 00:19:57,375 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:57,378 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:57,379 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:57,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2021-10-11 00:19:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:19:57,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:19:57,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2021-10-11 00:19:57,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413325246] [2021-10-11 00:19:57,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 00:19:57,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:57,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 00:19:57,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:19:57,415 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 13 states. [2021-10-11 00:19:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:57,844 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2021-10-11 00:19:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:19:57,845 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2021-10-11 00:19:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:57,847 INFO L225 Difference]: With dead ends: 42 [2021-10-11 00:19:57,847 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 00:19:57,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2021-10-11 00:19:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 00:19:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 22. [2021-10-11 00:19:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 00:19:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-10-11 00:19:57,865 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 20 [2021-10-11 00:19:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:57,866 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-10-11 00:19:57,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 00:19:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-10-11 00:19:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:19:57,868 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:57,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:58,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 00:19:58,084 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1608161903, now seen corresponding path program 1 times [2021-10-11 00:19:58,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:58,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8322126] [2021-10-11 00:19:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:58,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:58,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:58,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:58,192 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:19:58,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:19:58,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:19:58 BoogieIcfgContainer [2021-10-11 00:19:58,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:19:58,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:19:58,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:19:58,264 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:19:58,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:55" (3/4) ... [2021-10-11 00:19:58,267 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:19:58,317 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ac3bb0-7ebd-4f2f-b04b-a56b51eabc74/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:19:58,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:19:58,319 INFO L168 Benchmark]: Toolchain (without parser) took 3055.44 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 83.6 MB in the beginning and 97.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,319 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 123.7 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:58,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.53 ms. Allocated memory is still 123.7 MB. Free memory was 83.5 MB in the beginning and 97.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.12 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 95.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,321 INFO L168 Benchmark]: Boogie Preprocessor took 29.94 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 94.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,322 INFO L168 Benchmark]: RCFGBuilder took 308.81 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 78.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,327 INFO L168 Benchmark]: TraceAbstraction took 2347.34 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 78.3 MB in the beginning and 100.8 MB in the end (delta: -22.5 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,327 INFO L168 Benchmark]: Witness Printer took 53.74 ms. Allocated memory is still 148.9 MB. Free memory was 100.8 MB in the beginning and 97.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:58,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 123.7 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.53 ms. Allocated memory is still 123.7 MB. Free memory was 83.5 MB in the beginning and 97.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.12 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 95.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.94 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 94.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 308.81 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 78.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2347.34 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 78.3 MB in the beginning and 100.8 MB in the end (delta: -22.5 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * Witness Printer took 53.74 ms. Allocated memory is still 148.9 MB. Free memory was 100.8 MB in the beginning and 97.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i