./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/large_const.i --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_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/large_const.i -s /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/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 8a29efc1cd20d7b6b63b545aee1e0a42be6fb6f9 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:31:41,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:31:41,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:31:41,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:31:41,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:31:41,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:31:41,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:31:41,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:31:41,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:31:41,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:31:41,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:31:41,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:31:41,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:31:41,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:31:41,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:31:41,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:31:41,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:31:41,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:31:41,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:31:41,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:31:41,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:31:41,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:31:41,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:31:41,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:31:41,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:31:41,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:31:41,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:31:41,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:31:41,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:31:41,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:31:41,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:31:41,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:31:41,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:31:41,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:31:41,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:31:41,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:31:41,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:31:41,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:31:41,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:31:41,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:31:41,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:31:42,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:31:42,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:31:42,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:31:42,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:31:42,052 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:31:42,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:31:42,052 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:31:42,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:31:42,053 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:31:42,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:31:42,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:31:42,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:31:42,054 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:31:42,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:31:42,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:31:42,055 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:31:42,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:31:42,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:31:42,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:31:42,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:31:42,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:31:42,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:31:42,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:31:42,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:31:42,058 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:31:42,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:31:42,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:31:42,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:31:42,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:31:42,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:31:42,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:31:42,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:31:42,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:31:42,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:31:42,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:31:42,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:31:42,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:31:42,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:31:42,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:31:42,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:31:42,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:31:42,061 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_79e068de-f42f-41a9-84bb-d58b74fb1c88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a29efc1cd20d7b6b63b545aee1e0a42be6fb6f9 [2020-11-28 07:31:42,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:31:42,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:31:42,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:31:42,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:31:42,386 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:31:42,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/../../sv-benchmarks/c/loop-invgen/large_const.i [2020-11-28 07:31:42,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/data/50cf99a5d/b644eef2154e423aa55e2b77745a48ce/FLAGd68ca3b53 [2020-11-28 07:31:42,979 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:31:42,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/sv-benchmarks/c/loop-invgen/large_const.i [2020-11-28 07:31:42,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/data/50cf99a5d/b644eef2154e423aa55e2b77745a48ce/FLAGd68ca3b53 [2020-11-28 07:31:43,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/data/50cf99a5d/b644eef2154e423aa55e2b77745a48ce [2020-11-28 07:31:43,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:31:43,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:31:43,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:31:43,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:31:43,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:31:43,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47954708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43, skipping insertion in model container [2020-11-28 07:31:43,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:31:43,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:31:43,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:31:43,718 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:31:43,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:31:43,771 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:31:43,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43 WrapperNode [2020-11-28 07:31:43,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:31:43,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:31:43,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:31:43,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:31:43,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:31:43,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:31:43,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:31:43,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:31:43,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... [2020-11-28 07:31:43,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:31:43,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:31:43,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:31:43,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:31:43,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/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 07:31:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:31:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:31:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:31:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:31:44,358 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:31:44,358 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 07:31:44,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:44 BoogieIcfgContainer [2020-11-28 07:31:44,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:31:44,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:31:44,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:31:44,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:31:44,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:31:43" (1/3) ... [2020-11-28 07:31:44,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742935fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:31:44, skipping insertion in model container [2020-11-28 07:31:44,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:43" (2/3) ... [2020-11-28 07:31:44,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742935fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:31:44, skipping insertion in model container [2020-11-28 07:31:44,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:44" (3/3) ... [2020-11-28 07:31:44,368 INFO L111 eAbstractionObserver]: Analyzing ICFG large_const.i [2020-11-28 07:31:44,379 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:31:44,382 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:31:44,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:31:44,432 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:31:44,434 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:31:44,434 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:31:44,435 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:31:44,435 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:31:44,435 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:31:44,435 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:31:44,435 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:31:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-28 07:31:44,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:31:44,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:44,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:44,465 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:44,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1490570089, now seen corresponding path program 1 times [2020-11-28 07:31:44,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:44,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140272581] [2020-11-28 07:31:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:44,721 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 07:31:44,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140272581] [2020-11-28 07:31:44,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:31:44,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:31:44,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292173334] [2020-11-28 07:31:44,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:31:44,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:44,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:31:44,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:31:44,749 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-11-28 07:31:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:44,850 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2020-11-28 07:31:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:31:44,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 07:31:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:44,860 INFO L225 Difference]: With dead ends: 25 [2020-11-28 07:31:44,860 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 07:31:44,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:31:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 07:31:44,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 07:31:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 07:31:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-28 07:31:44,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2020-11-28 07:31:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:44,896 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-28 07:31:44,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:31:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 07:31:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:31:44,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:44,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:44,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:31:44,899 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1564901991, now seen corresponding path program 1 times [2020-11-28 07:31:44,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:44,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920586655] [2020-11-28 07:31:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:45,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920586655] [2020-11-28 07:31:45,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712445866] [2020-11-28 07:31:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:31:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:45,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:31:45,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:31:45,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:31:45,249 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-28 07:31:45,253 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-28 07:31:45,257 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-28 07:31:45,263 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-28 07:31:45,277 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:31:45,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:31:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:45,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:31:45,332 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:31:45,363 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:31:45,372 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-28 07:31:45,372 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-28 07:31:45,395 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-28 07:31:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:45,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1879947593] [2020-11-28 07:31:45,451 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-11-28 07:31:45,451 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:31:45,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:31:45,464 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:31:45,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:31:45,863 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:31:46,083 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-11-28 07:31:46,334 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-11-28 07:31:46,508 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-11-28 07:31:46,730 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-11-28 07:31:46,931 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2020-11-28 07:31:47,133 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-11-28 07:31:47,135 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:31:47,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:31:47,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2020-11-28 07:31:47,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135544736] [2020-11-28 07:31:47,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 07:31:47,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:47,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 07:31:47,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:31:47,139 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 11 states. [2020-11-28 07:31:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:47,535 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2020-11-28 07:31:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 07:31:47,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 9 [2020-11-28 07:31:47,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:47,537 INFO L225 Difference]: With dead ends: 33 [2020-11-28 07:31:47,537 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 07:31:47,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-11-28 07:31:47,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 07:31:47,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 16. [2020-11-28 07:31:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:31:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-28 07:31:47,549 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2020-11-28 07:31:47,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:47,551 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-28 07:31:47,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 07:31:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 07:31:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:31:47,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:47,552 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:47,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 07:31:47,753 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:47,754 INFO L82 PathProgramCache]: Analyzing trace with hash -587024153, now seen corresponding path program 1 times [2020-11-28 07:31:47,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:47,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916759260] [2020-11-28 07:31:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:47,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916759260] [2020-11-28 07:31:47,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734965674] [2020-11-28 07:31:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:31:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:47,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 07:31:47,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:31:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 07:31:47,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:31:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 07:31:47,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-28 07:31:47,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 9 [2020-11-28 07:31:47,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209780939] [2020-11-28 07:31:47,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 07:31:47,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:47,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 07:31:47,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:31:47,999 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 7 states. [2020-11-28 07:31:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:48,046 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-28 07:31:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:31:48,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-28 07:31:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:48,048 INFO L225 Difference]: With dead ends: 17 [2020-11-28 07:31:48,049 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:31:48,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:31:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:31:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:31:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:31:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:31:48,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-28 07:31:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:48,051 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:31:48,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 07:31:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:31:48,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:31:48,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-28 07:31:48,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:31:48,381 INFO L274 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-11-28 07:31:48,382 INFO L270 CegarLoopResult]: At program point L40-2(lines 34 44) the Hoare annotation is: (let ((.cse0 (<= 4000 ULTIMATE.start_main_~c1~0)) (.cse1 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse2 (<= 10000 ULTIMATE.start_main_~c3~0))) (or (and (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~k~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 2000 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~n~0 1)))) [2020-11-28 07:31:48,382 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:31:48,382 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 07:31:48,382 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 07:31:48,382 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 07:31:48,382 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-28 07:31:48,383 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-28 07:31:48,383 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:31:48,383 INFO L270 CegarLoopResult]: At program point L46-2(lines 46 50) the Hoare annotation is: (let ((.cse0 (<= 4000 ULTIMATE.start_main_~c1~0)) (.cse1 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse2 (<= 10000 ULTIMATE.start_main_~c3~0)) (.cse3 (<= ULTIMATE.start_main_~n~0 1))) (or (and (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~j~0 0) (<= ULTIMATE.start_main_~n~0 0)) (and (<= 0 ULTIMATE.start_main_~j~0) .cse0 .cse1 .cse2 (<= 2000 ULTIMATE.start_main_~k~0) .cse3) (and .cse0 (<= 1 ULTIMATE.start_main_~j~0) .cse1 .cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse3 (< 0 ULTIMATE.start_main_~k~0)))) [2020-11-28 07:31:48,383 INFO L277 CegarLoopResult]: At program point L51(lines 24 52) the Hoare annotation is: true [2020-11-28 07:31:48,383 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-28 07:31:48,383 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~j~0) (<= 4000 ULTIMATE.start_main_~c1~0) (<= 2000 ULTIMATE.start_main_~c2~0) (<= 10000 ULTIMATE.start_main_~c3~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 2000 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~n~0 1)) [2020-11-28 07:31:48,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:31:48 BoogieIcfgContainer [2020-11-28 07:31:48,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:31:48,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:31:48,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:31:48,418 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:31:48,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:44" (3/4) ... [2020-11-28 07:31:48,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:31:48,446 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 07:31:48,447 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 07:31:48,447 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:31:48,448 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:31:48,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_79e068de-f42f-41a9-84bb-d58b74fb1c88/bin/utaipan/witness.graphml [2020-11-28 07:31:48,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:31:48,535 INFO L168 Benchmark]: Toolchain (without parser) took 5061.20 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 71.3 MB in the beginning and 69.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,536 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:31:48,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.81 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 70.9 MB in the beginning and 95.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 119.5 MB. Free memory was 95.6 MB in the beginning and 94.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,539 INFO L168 Benchmark]: Boogie Preprocessor took 39.48 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 93.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:31:48,542 INFO L168 Benchmark]: RCFGBuilder took 488.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 74.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,544 INFO L168 Benchmark]: TraceAbstraction took 4055.91 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 72.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,545 INFO L168 Benchmark]: Witness Printer took 115.80 ms. Allocated memory is still 144.7 MB. Free memory was 72.4 MB in the beginning and 69.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:31:48,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.81 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 70.9 MB in the beginning and 95.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 119.5 MB. Free memory was 95.6 MB in the beginning and 94.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.48 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 93.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 488.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 74.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4055.91 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 72.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * Witness Printer took 115.80 ms. Allocated memory is still 144.7 MB. Free memory was 72.4 MB in the beginning and 69.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((0 <= j && 4000 <= c1) && 2000 <= c2) && 10000 <= c3) && 1 <= cond) && 2000 <= k) && n <= 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((i == 0 && k == 0) && 4000 <= c1) && 2000 <= c2) && 10000 <= c3) || ((((4000 <= c1 && 2000 <= c2) && 10000 <= c3) && 2000 <= k) && n <= 1) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((i == 0 && j == 0) && n <= 0) || (((((0 <= j && 4000 <= c1) && 2000 <= c2) && 10000 <= c3) && 2000 <= k) && n <= 1)) || ((((((4000 <= c1 && 1 <= j) && 2000 <= c2) && 10000 <= c3) && 1 <= cond) && n <= 1) && 0 < k) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 65 SDslu, 49 SDs, 0 SdLazy, 79 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=2, 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, 3 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 108 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2864 SizeOfPredicates, 11 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/27 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...