./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_vardep_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_vardep_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI --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 6050a254c51e1c660a5052827178861f589aecae ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:28:22,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:22,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:22,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:22,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:22,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:22,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:22,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:22,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:22,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:22,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:22,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:22,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:22,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:22,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:22,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:22,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:22,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:22,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:22,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:22,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:22,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:22,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:22,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:22,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:22,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:22,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:22,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:22,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:22,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:22,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:22,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:22,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:22,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:22,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:22,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:22,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:22,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:22,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:22,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:22,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:22,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:22,425 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:22,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:22,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:22,426 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:22,426 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:22,427 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:22,428 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:22,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:22,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:22,428 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:22,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:22,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:22,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:22,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:22,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:22,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:22,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:22,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:22,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:22,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:22,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:22,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:22,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:22,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:22,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:22,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:22,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:22,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:22,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:22,433 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_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6050a254c51e1c660a5052827178861f589aecae [2021-10-11 02:28:22,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:22,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:22,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:22,772 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:22,773 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:22,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-crafted/simple_vardep_2.c [2021-10-11 02:28:22,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/data/5c16fd749/6f9cb73f2b9047cd9e9610dde00dfd9c/FLAG239f3b6e8 [2021-10-11 02:28:23,274 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:23,275 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/sv-benchmarks/c/loop-crafted/simple_vardep_2.c [2021-10-11 02:28:23,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/data/5c16fd749/6f9cb73f2b9047cd9e9610dde00dfd9c/FLAG239f3b6e8 [2021-10-11 02:28:23,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/data/5c16fd749/6f9cb73f2b9047cd9e9610dde00dfd9c [2021-10-11 02:28:23,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:23,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:23,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:23,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:23,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:23,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d54b5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23, skipping insertion in model container [2021-10-11 02:28:23,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:23,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:23,866 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/sv-benchmarks/c/loop-crafted/simple_vardep_2.c[584,597] [2021-10-11 02:28:23,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:23,904 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:23,913 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/sv-benchmarks/c/loop-crafted/simple_vardep_2.c[584,597] [2021-10-11 02:28:23,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:23,927 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:23,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23 WrapperNode [2021-10-11 02:28:23,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:23,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:23,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:23,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:23,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:23,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:23,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:23,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:23,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... [2021-10-11 02:28:23,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:23,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:23,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:23,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:23,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:24,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:24,260 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:28:24,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24 BoogieIcfgContainer [2021-10-11 02:28:24,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:24,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:24,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:24,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:24,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:23" (1/3) ... [2021-10-11 02:28:24,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1842864f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:24, skipping insertion in model container [2021-10-11 02:28:24,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:23" (2/3) ... [2021-10-11 02:28:24,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1842864f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:24, skipping insertion in model container [2021-10-11 02:28:24,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24" (3/3) ... [2021-10-11 02:28:24,286 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2021-10-11 02:28:24,311 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:24,313 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:24,328 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:28:24,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:24,361 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:24,361 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:24,361 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:24,361 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:24,362 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:24,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:24,362 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:28:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:28:24,380 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:24,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:28:24,383 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:24,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:24,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1738899, now seen corresponding path program 1 times [2021-10-11 02:28:24,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:24,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685070729] [2021-10-11 02:28:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:24,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685070729] [2021-10-11 02:28:24,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:24,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:28:24,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033727460] [2021-10-11 02:28:24,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:24,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:24,686 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2021-10-11 02:28:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:24,726 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2021-10-11 02:28:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:24,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:28:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:24,736 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:28:24,736 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:28:24,738 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 [2021-10-11 02:28:24,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:28:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:28:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:28:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:28:24,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2021-10-11 02:28:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:24,784 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:28:24,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:28:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:28:24,785 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:24,785 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-11 02:28:24,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:24,788 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:24,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1671226539, now seen corresponding path program 1 times [2021-10-11 02:28:24,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:24,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886008197] [2021-10-11 02:28:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:25,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886008197] [2021-10-11 02:28:25,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255031472] [2021-10-11 02:28:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:28:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:25,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-11 02:28:25,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:25,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:28:25,414 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:28:25,581 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2021-10-11 02:28:25,581 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:28:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:25,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [932639119] [2021-10-11 02:28:25,637 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-10-11 02:28:25,637 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:28:25,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:28:25,658 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:28:25,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:28:26,197 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:28:26,675 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 74 [2021-10-11 02:28:26,800 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:28:26,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:28:26,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2021-10-11 02:28:26,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342418010] [2021-10-11 02:28:26,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 02:28:26,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:26,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 02:28:26,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:28:26,803 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 11 states. [2021-10-11 02:28:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:26,994 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-10-11 02:28:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:26,995 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 6 [2021-10-11 02:28:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:26,995 INFO L225 Difference]: With dead ends: 8 [2021-10-11 02:28:26,996 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:26,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-11 02:28:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:26,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:28:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:26,998 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:26,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 02:28:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:26,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:27,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:28:27,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:28:27,251 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:28:27,252 INFO L262 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-11 02:28:27,252 INFO L258 CegarLoopResult]: At program point L9-2(lines 7 26) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~j~0 0)) (let ((.cse0 (* 2 ULTIMATE.start_main_~i~0)) (.cse1 (* 3 ULTIMATE.start_main_~i~0))) (and (<= .cse0 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~k~0 .cse1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~j~0 .cse0) (<= .cse1 ULTIMATE.start_main_~k~0)))) [2021-10-11 02:28:27,252 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:28:27,253 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-11 02:28:27,253 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-11 02:28:27,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:27 BoogieIcfgContainer [2021-10-11 02:28:27,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:27,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:27,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:27,276 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:27,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24" (3/4) ... [2021-10-11 02:28:27,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:27,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:28:27,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:28:27,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:28:27,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:27,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8600518c-1014-4e86-9fab-5fe3c260a0c0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:27,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:27,324 INFO L168 Benchmark]: Toolchain (without parser) took 3627.83 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 68.1 MB in the beginning and 55.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,325 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 77.6 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:27,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.84 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 78.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,326 INFO L168 Benchmark]: Boogie Preprocessor took 17.14 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 76.2 MB in the end (delta: 640.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:27,327 INFO L168 Benchmark]: RCFGBuilder took 290.05 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 63.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,328 INFO L168 Benchmark]: TraceAbstraction took 3010.40 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.8 MB in the beginning and 57.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,328 INFO L168 Benchmark]: Witness Printer took 47.66 ms. Allocated memory is still 123.7 MB. Free memory was 57.6 MB in the beginning and 55.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:27,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 77.6 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.84 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 78.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.14 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 76.2 MB in the end (delta: 640.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 290.05 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 63.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3010.40 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.8 MB in the beginning and 57.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * Witness Printer took 47.66 ms. Allocated memory is still 123.7 MB. Free memory was 57.6 MB in the beginning and 55.5 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: - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: ((i == 0 && k == 0) && j == 0) || ((((2 * i <= j && k <= 3 * i) && 1 <= cond) && j <= 2 * i) && 3 * i <= k) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 35 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 955 SizeOfPredicates, 6 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...