./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_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/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 [2020-11-22 12:59:07,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:07,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:07,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:07,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:07,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:07,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:07,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:07,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:07,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:07,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:07,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:07,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:07,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:07,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:07,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:07,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:07,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:07,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:07,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:07,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:07,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:07,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:07,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:07,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:07,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:07,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:07,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:07,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:07,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:07,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:07,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:07,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:07,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:07,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:07,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:07,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:07,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:07,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:07,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:07,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:07,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:59:07,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:07,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:07,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:07,732 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:07,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:07,733 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:07,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:59:07,734 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:07,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:07,734 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:59:07,734 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:59:07,735 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:07,735 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:59:07,735 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:59:07,736 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:59:07,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:07,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:07,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:59:07,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:07,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:07,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:07,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:07,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:07,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:07,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:07,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:07,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:07,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:07,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:07,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:07,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:07,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:07,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:07,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:07,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:07,742 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:59:07,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:59:07,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:07,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:07,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:07,743 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_d75130c3-42a5-4bb5-8464-4819583cd541/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-11-22 12:59:08,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:08,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:08,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:08,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:08,055 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:08,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-22 12:59:08,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/data/59f7cab08/46fc54570f4c435eb77cebbeac8ccdaf/FLAG39543ce5f [2020-11-22 12:59:08,594 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:08,595 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-22 12:59:08,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/data/59f7cab08/46fc54570f4c435eb77cebbeac8ccdaf/FLAG39543ce5f [2020-11-22 12:59:08,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/data/59f7cab08/46fc54570f4c435eb77cebbeac8ccdaf [2020-11-22 12:59:08,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:08,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:08,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:08,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:08,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:08,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebb322c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08, skipping insertion in model container [2020-11-22 12:59:08,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:09,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:09,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:09,219 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:09,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:09,244 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:09,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09 WrapperNode [2020-11-22 12:59:09,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:09,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:09,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:09,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:09,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:09,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:09,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:09,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:09,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... [2020-11-22 12:59:09,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:09,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:09,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:09,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:09,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/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 [2020-11-22 12:59:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:59:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:09,704 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:09,704 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-22 12:59:09,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:09 BoogieIcfgContainer [2020-11-22 12:59:09,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:09,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:09,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:09,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:09,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:08" (1/3) ... [2020-11-22 12:59:09,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7d46a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:09, skipping insertion in model container [2020-11-22 12:59:09,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:09" (2/3) ... [2020-11-22 12:59:09,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7d46a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:09, skipping insertion in model container [2020-11-22 12:59:09,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:09" (3/3) ... [2020-11-22 12:59:09,717 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-11-22 12:59:09,728 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:09,732 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:59:09,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:59:09,767 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:09,767 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:09,768 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:09,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:09,768 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:09,768 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:09,768 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:09,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-22 12:59:09,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 12:59:09,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:09,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 12:59:09,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:09,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:09,797 INFO L82 PathProgramCache]: Analyzing trace with hash 90785478, now seen corresponding path program 1 times [2020-11-22 12:59:09,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:59:09,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989465875] [2020-11-22 12:59:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:59:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:10,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989465875] [2020-11-22 12:59:10,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:10,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:59:10,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901360561] [2020-11-22 12:59:10,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:59:10,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:59:10,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:59:10,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:10,021 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-22 12:59:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:10,127 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-11-22 12:59:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:10,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-22 12:59:10,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:10,148 INFO L225 Difference]: With dead ends: 44 [2020-11-22 12:59:10,157 INFO L226 Difference]: Without dead ends: 25 [2020-11-22 12:59:10,160 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 [2020-11-22 12:59:10,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-22 12:59:10,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2020-11-22 12:59:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 12:59:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-22 12:59:10,199 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2020-11-22 12:59:10,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:10,200 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-22 12:59:10,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:59:10,200 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-22 12:59:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 12:59:10,201 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:10,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 12:59:10,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:59:10,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:10,205 INFO L82 PathProgramCache]: Analyzing trace with hash 90728588, now seen corresponding path program 1 times [2020-11-22 12:59:10,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:59:10,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453794858] [2020-11-22 12:59:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:59:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:10,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453794858] [2020-11-22 12:59:10,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:10,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:59:10,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406716531] [2020-11-22 12:59:10,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:10,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:59:10,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:10,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:10,325 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-11-22 12:59:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:10,372 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-11-22 12:59:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:59:10,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-22 12:59:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:10,374 INFO L225 Difference]: With dead ends: 19 [2020-11-22 12:59:10,374 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 12:59:10,375 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 [2020-11-22 12:59:10,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 12:59:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-22 12:59:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 12:59:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-22 12:59:10,378 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2020-11-22 12:59:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:10,379 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-22 12:59:10,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-22 12:59:10,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 12:59:10,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:10,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:10,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:59:10,380 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:10,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1367671766, now seen corresponding path program 1 times [2020-11-22 12:59:10,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:59:10,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652744452] [2020-11-22 12:59:10,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:59:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:10,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652744452] [2020-11-22 12:59:10,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:10,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 12:59:10,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566451836] [2020-11-22 12:59:10,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:10,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:59:10,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:10,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:10,493 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-11-22 12:59:10,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:10,571 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-22 12:59:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:59:10,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-22 12:59:10,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:10,573 INFO L225 Difference]: With dead ends: 22 [2020-11-22 12:59:10,573 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 12:59:10,574 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 [2020-11-22 12:59:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 12:59:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-22 12:59:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-22 12:59:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-22 12:59:10,578 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8 [2020-11-22 12:59:10,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:10,578 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-22 12:59:10,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-22 12:59:10,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 12:59:10,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:10,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:10,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:59:10,580 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:10,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2038351597, now seen corresponding path program 1 times [2020-11-22 12:59:10,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:59:10,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828417156] [2020-11-22 12:59:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:59:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:10,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:10,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:10,657 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:59:10,657 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:59:10,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 12:59:10,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:10 BoogieIcfgContainer [2020-11-22 12:59:10,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:10,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:10,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:10,688 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:10,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:09" (3/4) ... [2020-11-22 12:59:10,690 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:59:10,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d75130c3-42a5-4bb5-8464-4819583cd541/bin/utaipan/witness.graphml [2020-11-22 12:59:10,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:10,740 INFO L168 Benchmark]: Toolchain (without parser) took 1759.65 ms. Allocated memory is still 94.4 MB. Free memory was 62.2 MB in the beginning and 41.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,740 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 58.6 MB in the beginning and 58.6 MB in the end (delta: 22.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:10,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.00 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 73.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.38 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,742 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:10,743 INFO L168 Benchmark]: RCFGBuilder took 408.48 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 55.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,743 INFO L168 Benchmark]: TraceAbstraction took 980.12 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 43.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,744 INFO L168 Benchmark]: Witness Printer took 50.15 ms. Allocated memory is still 94.4 MB. Free memory was 43.6 MB in the beginning and 41.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:10,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 58.6 MB in the beginning and 58.6 MB in the end (delta: 22.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.00 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 73.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.38 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 408.48 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 55.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 980.12 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 43.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Witness Printer took 50.15 ms. Allocated memory is still 94.4 MB. Free memory was 43.6 MB in the beginning and 41.5 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