./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer --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 108d15887a93306fe736fe6c2e7f14ff3dbea99b .......................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 03:04:49,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:04:49,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:04:49,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:04:49,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:04:49,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:04:49,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:04:49,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:04:49,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:04:49,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:04:49,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:04:49,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:04:49,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:04:49,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:04:49,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:04:49,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:04:49,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:04:49,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:04:49,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:04:49,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:04:49,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:04:49,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:04:49,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:04:49,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:04:49,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:04:49,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:04:49,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:04:49,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:04:49,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:04:49,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:04:49,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:04:49,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:04:49,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:04:49,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:04:49,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:04:49,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:04:49,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:04:49,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:04:49,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:04:49,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:04:49,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:04:49,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:04:49,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:04:49,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:04:49,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:04:49,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:04:49,582 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:04:49,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:04:49,583 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:04:49,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:04:49,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:04:49,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:04:49,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:04:49,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:04:49,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:04:49,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:04:49,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:04:49,586 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:04:49,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:04:49,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:04:49,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:04:49,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:04:49,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:04:49,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:49,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:04:49,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:04:49,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:04:49,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:04:49,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:04:49,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:04:49,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:04:49,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-11-28 03:04:49,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:04:49,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:04:49,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:04:49,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:04:49,921 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:04:49,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 03:04:50,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/data/8996889fc/4b6e013ec85242e28fd0ee61bd0010e5/FLAG8ba2041bb [2020-11-28 03:04:50,482 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:04:50,483 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 03:04:50,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/data/8996889fc/4b6e013ec85242e28fd0ee61bd0010e5/FLAG8ba2041bb [2020-11-28 03:04:50,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/data/8996889fc/4b6e013ec85242e28fd0ee61bd0010e5 [2020-11-28 03:04:50,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:04:50,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:04:50,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:50,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:04:50,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:04:50,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:50" (1/1) ... [2020-11-28 03:04:50,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67369189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:50, skipping insertion in model container [2020-11-28 03:04:50,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:50" (1/1) ... [2020-11-28 03:04:50,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:04:50,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:04:51,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:51,144 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:04:51,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:51,175 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:04:51,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51 WrapperNode [2020-11-28 03:04:51,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:51,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:51,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:04:51,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:04:51,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:51,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:04:51,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:04:51,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:04:51,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... [2020-11-28 03:04:51,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:04:51,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:04:51,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:04:51,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:04:51,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:04:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:04:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:04:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:04:51,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:04:51,551 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-28 03:04:51,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:51 BoogieIcfgContainer [2020-11-28 03:04:51,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:04:51,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:04:51,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:04:51,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:04:51,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:04:50" (1/3) ... [2020-11-28 03:04:51,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac89048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:51, skipping insertion in model container [2020-11-28 03:04:51,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:51" (2/3) ... [2020-11-28 03:04:51,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac89048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:51, skipping insertion in model container [2020-11-28 03:04:51,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:51" (3/3) ... [2020-11-28 03:04:51,574 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-11-28 03:04:51,584 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:04:51,588 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:04:51,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:04:51,624 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:04:51,625 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:04:51,625 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:04:51,625 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:04:51,625 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:04:51,625 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:04:51,625 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:04:51,625 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:04:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 03:04:51,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:04:51,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:51,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:04:51,659 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:51,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:51,665 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2020-11-28 03:04:51,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:51,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997901349] [2020-11-28 03:04:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:51,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997901349] [2020-11-28 03:04:51,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:51,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:04:51,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632192142] [2020-11-28 03:04:51,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:04:51,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:51,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:04:51,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:04:51,962 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-11-28 03:04:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:52,064 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2020-11-28 03:04:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:04:52,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-28 03:04:52,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:52,074 INFO L225 Difference]: With dead ends: 51 [2020-11-28 03:04:52,075 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 03:04:52,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 03:04:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-28 03:04:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 03:04:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-28 03:04:52,109 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-11-28 03:04:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:52,110 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-28 03:04:52,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:04:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-28 03:04:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:04:52,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:52,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:52,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:04:52,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1365090645, now seen corresponding path program 1 times [2020-11-28 03:04:52,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:52,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253869898] [2020-11-28 03:04:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:52,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253869898] [2020-11-28 03:04:52,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:52,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:52,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761715539] [2020-11-28 03:04:52,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:52,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:52,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:52,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:52,284 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2020-11-28 03:04:52,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:52,358 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-28 03:04:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:04:52,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-28 03:04:52,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:52,360 INFO L225 Difference]: With dead ends: 24 [2020-11-28 03:04:52,360 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 03:04:52,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 03:04:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 03:04:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:04:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-28 03:04:52,366 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2020-11-28 03:04:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:52,367 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-28 03:04:52,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-28 03:04:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:04:52,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:52,370 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:52,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:04:52,371 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1623172870, now seen corresponding path program 1 times [2020-11-28 03:04:52,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:52,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520321232] [2020-11-28 03:04:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:52,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520321232] [2020-11-28 03:04:52,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936200980] [2020-11-28 03:04:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/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 [2020-11-28 03:04:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:52,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 03:04:52,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:04:52,734 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:04:52,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:04:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:52,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:04:52,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-28 03:04:52,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817312939] [2020-11-28 03:04:52,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:04:52,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:52,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:04:52,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:52,764 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 7 states. [2020-11-28 03:04:52,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:52,871 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-28 03:04:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:04:52,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-11-28 03:04:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:52,872 INFO L225 Difference]: With dead ends: 22 [2020-11-28 03:04:52,872 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 03:04:52,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:04:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 03:04:52,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2020-11-28 03:04:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 03:04:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-28 03:04:52,877 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-11-28 03:04:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:52,877 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-11-28 03:04:52,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:04:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-28 03:04:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:04:52,878 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:52,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:53,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:04:53,079 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:53,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1221221823, now seen corresponding path program 1 times [2020-11-28 03:04:53,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:53,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138476979] [2020-11-28 03:04:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:04:53,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:04:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:04:53,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:04:53,174 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:04:53,175 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:04:53,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:04:53,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:04:53 BoogieIcfgContainer [2020-11-28 03:04:53,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:04:53,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:04:53,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:04:53,200 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:04:53,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:51" (3/4) ... [2020-11-28 03:04:53,202 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:04:53,242 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75b605b0-6e0a-4070-92b1-1f314e62ab93/bin/uautomizer/witness.graphml [2020-11-28 03:04:53,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:04:53,244 INFO L168 Benchmark]: Toolchain (without parser) took 2369.02 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 62.1 MB in the beginning and 86.8 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:53,244 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 72.0 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:53,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.04 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 73.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:53,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.27 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:53,246 INFO L168 Benchmark]: Boogie Preprocessor took 20.76 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 71.3 MB in the end (delta: 850.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:53,247 INFO L168 Benchmark]: RCFGBuilder took 320.14 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:53,248 INFO L168 Benchmark]: TraceAbstraction took 1631.19 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 88.9 MB in the end (delta: -30.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:53,248 INFO L168 Benchmark]: Witness Printer took 42.52 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 86.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:53,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 72.0 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.04 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 73.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.27 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.76 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 71.3 MB in the end (delta: 850.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 320.14 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1631.19 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 88.9 MB in the end (delta: -30.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.52 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 86.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 [L22] COND TRUE i