./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_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan --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 Taipan --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 07:41:46,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:46,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:46,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:46,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:46,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:46,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:46,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:46,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:46,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:46,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:46,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:46,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:46,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:46,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:46,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:46,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:46,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:46,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:46,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:46,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:46,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:46,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:46,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:46,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:46,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:46,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:46,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:46,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:46,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:46,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:46,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:46,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:46,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:46,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:46,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:46,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:46,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:46,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:46,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:46,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:46,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:41:46,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:46,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:46,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:46,319 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:46,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:46,320 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:46,320 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:46,320 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:46,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:46,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:46,321 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:46,321 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:46,321 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:46,322 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:46,322 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:46,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:46,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:46,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:46,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:46,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:46,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:46,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:46,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:46,324 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:46,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:46,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:46,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:46,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:46,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:46,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:46,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:46,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:46,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:46,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:46,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:46,327 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:46,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:46,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:46,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:46,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:46,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-11-28 07:41:46,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:46,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:46,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:46,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:46,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:46,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 07:41:46,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/data/6142e7f70/a29af229eea749509b7c5b8725eee50d/FLAG0515d42f3 [2020-11-28 07:41:47,185 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:47,185 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 07:41:47,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/data/6142e7f70/a29af229eea749509b7c5b8725eee50d/FLAG0515d42f3 [2020-11-28 07:41:47,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/data/6142e7f70/a29af229eea749509b7c5b8725eee50d [2020-11-28 07:41:47,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:47,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:47,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:47,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:47,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:47,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6492fde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47, skipping insertion in model container [2020-11-28 07:41:47,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:47,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:47,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:47,765 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:47,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:47,794 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:47,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47 WrapperNode [2020-11-28 07:41:47,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:47,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:47,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:47,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:47,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:47,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:47,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:47,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:47,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... [2020-11-28 07:41:47,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:47,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:47,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:47,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:47,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/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 07:41:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:41:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:48,375 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:48,375 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-28 07:41:48,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:48 BoogieIcfgContainer [2020-11-28 07:41:48,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:48,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:48,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:48,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:48,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:47" (1/3) ... [2020-11-28 07:41:48,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dc63ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:48, skipping insertion in model container [2020-11-28 07:41:48,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:47" (2/3) ... [2020-11-28 07:41:48,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dc63ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:48, skipping insertion in model container [2020-11-28 07:41:48,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:48" (3/3) ... [2020-11-28 07:41:48,393 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-11-28 07:41:48,411 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:48,417 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:41:48,427 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:41:48,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:48,452 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:48,452 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:48,452 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:48,452 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:48,452 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:48,452 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:48,453 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-28 07:41:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:41:48,469 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:48,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:41:48,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 90785478, now seen corresponding path program 1 times [2020-11-28 07:41:48,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:48,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079290320] [2020-11-28 07:41:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:48,652 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 07:41:48,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079290320] [2020-11-28 07:41:48,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:48,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:48,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748278622] [2020-11-28 07:41:48,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:48,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:48,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:48,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:48,674 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-28 07:41:48,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:48,725 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-11-28 07:41:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:48,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 07:41:48,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:48,734 INFO L225 Difference]: With dead ends: 44 [2020-11-28 07:41:48,735 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 07:41:48,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 07:41:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2020-11-28 07:41:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:41:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 07:41:48,766 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2020-11-28 07:41:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:48,767 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 07:41:48,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:48,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 07:41:48,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:41:48,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:48,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:41:48,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:41:48,768 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash 90728588, now seen corresponding path program 1 times [2020-11-28 07:41:48,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:48,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935200129] [2020-11-28 07:41:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:48,852 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 07:41:48,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935200129] [2020-11-28 07:41:48,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:48,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:48,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998275323] [2020-11-28 07:41:48,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:48,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:48,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:48,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:48,856 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-11-28 07:41:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:48,901 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-11-28 07:41:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:48,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 07:41:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:48,903 INFO L225 Difference]: With dead ends: 19 [2020-11-28 07:41:48,903 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:41:48,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:41:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 07:41:48,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:41:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 07:41:48,908 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2020-11-28 07:41:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:48,908 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-28 07:41:48,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 07:41:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:41:48,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:48,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:48,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:41:48,910 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:48,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1367671766, now seen corresponding path program 1 times [2020-11-28 07:41:48,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:48,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450258111] [2020-11-28 07:41:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:49,020 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 07:41:49,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450258111] [2020-11-28 07:41:49,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:49,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:41:49,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395178238] [2020-11-28 07:41:49,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:49,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:49,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:49,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:49,023 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-11-28 07:41:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:49,146 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-28 07:41:49,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:49,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-28 07:41:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:49,148 INFO L225 Difference]: With dead ends: 22 [2020-11-28 07:41:49,148 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 07:41:49,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 07:41:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 07:41:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 07:41:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 07:41:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-28 07:41:49,154 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8 [2020-11-28 07:41:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:49,154 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-28 07:41:49,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-28 07:41:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:41:49,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:49,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:49,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:41:49,156 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:49,157 INFO L82 PathProgramCache]: Analyzing trace with hash -2038351597, now seen corresponding path program 1 times [2020-11-28 07:41:49,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:49,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494751478] [2020-11-28 07:41:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:49,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:49,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:49,226 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:41:49,226 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:41:49,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:41:49,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:49 BoogieIcfgContainer [2020-11-28 07:41:49,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:49,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:49,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:49,250 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:49,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:48" (3/4) ... [2020-11-28 07:41:49,252 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:41:49,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a1946e7-6b7d-41ee-9576-2995e372e030/bin/utaipan/witness.graphml [2020-11-28 07:41:49,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:49,325 INFO L168 Benchmark]: Toolchain (without parser) took 1748.29 ms. Allocated memory is still 96.5 MB. Free memory was 55.8 MB in the beginning and 61.0 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:49,325 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 96.5 MB. Free memory is still 72.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:49,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.27 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 70.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:49,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:49,328 INFO L168 Benchmark]: Boogie Preprocessor took 20.50 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 68.1 MB in the end (delta: 900.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:49,329 INFO L168 Benchmark]: RCFGBuilder took 526.59 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 66.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:49,329 INFO L168 Benchmark]: TraceAbstraction took 863.30 ms. Allocated memory is still 96.5 MB. Free memory was 66.5 MB in the beginning and 63.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:49,330 INFO L168 Benchmark]: Witness Printer took 73.40 ms. Allocated memory is still 96.5 MB. Free memory was 63.1 MB in the beginning and 61.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:49,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 96.5 MB. Free memory is still 72.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 218.27 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 70.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.50 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 68.1 MB in the end (delta: 900.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 526.59 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 66.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 863.30 ms. Allocated memory is still 96.5 MB. Free memory was 66.5 MB in the beginning and 63.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Witness Printer took 73.40 ms. Allocated memory is still 96.5 MB. Free memory was 63.1 MB in the beginning and 61.0 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