./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.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_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/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 18c029257c8319cd9595edc065346f5d5f2a5d97 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:44,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:44,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:44,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:44,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:44,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:44,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:44,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:44,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:44,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:44,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:44,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:44,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:44,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:44,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:44,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:44,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:44,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:44,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:44,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:44,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:44,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:44,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:44,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:44,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:44,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:44,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:44,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:44,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:44,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:44,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:44,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:44,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:44,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:44,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:44,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:44,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:44,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:44,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:44,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:44,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:44,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:44,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:44,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:44,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:44,814 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:44,814 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:44,814 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:44,814 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:44,815 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:44,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:44,815 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:44,815 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:44,831 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:44,832 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:44,832 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:44,832 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:44,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:44,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:44,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:44,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:44,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:44,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:44,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:44,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:44,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:44,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:44,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:44,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:44,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:44,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:44,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:44,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:44,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:44,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:44,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:44,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:44,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:44,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:44,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:44,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:44,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:44,837 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_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18c029257c8319cd9595edc065346f5d5f2a5d97 [2020-11-22 13:05:45,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:45,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:45,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:45,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:45,102 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:45,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2020-11-22 13:05:45,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/data/afd7c2603/d58054c8352f4575bd280108b03f3875/FLAG93b39e0e4 [2020-11-22 13:05:45,553 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:45,553 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2020-11-22 13:05:45,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/data/afd7c2603/d58054c8352f4575bd280108b03f3875/FLAG93b39e0e4 [2020-11-22 13:05:45,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/data/afd7c2603/d58054c8352f4575bd280108b03f3875 [2020-11-22 13:05:45,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:45,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:45,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:45,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:45,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:45,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:45" (1/1) ... [2020-11-22 13:05:46,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df69115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46, skipping insertion in model container [2020-11-22 13:05:46,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:45" (1/1) ... [2020-11-22 13:05:46,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:46,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:46,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:46,174 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:46,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:46,207 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:46,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46 WrapperNode [2020-11-22 13:05:46,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:46,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:46,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:46,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:46,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:46,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:46,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:46,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:46,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... [2020-11-22 13:05:46,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:46,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:46,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:46,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:46,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-22 13:05:46,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:46,785 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-22 13:05:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:46 BoogieIcfgContainer [2020-11-22 13:05:46,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:46,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:46,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:46,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:46,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:45" (1/3) ... [2020-11-22 13:05:46,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8de8e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:46, skipping insertion in model container [2020-11-22 13:05:46,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:46" (2/3) ... [2020-11-22 13:05:46,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8de8e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:46, skipping insertion in model container [2020-11-22 13:05:46,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:46" (3/3) ... [2020-11-22 13:05:46,798 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound2.i [2020-11-22 13:05:46,815 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:46,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 13:05:46,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 13:05:46,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:46,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:46,870 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:46,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:46,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:46,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:46,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:46,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-22 13:05:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:05:46,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:46,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:46,894 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:46,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:46,900 INFO L82 PathProgramCache]: Analyzing trace with hash 677699308, now seen corresponding path program 1 times [2020-11-22 13:05:46,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:46,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160607913] [2020-11-22 13:05:46,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:47,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160607913] [2020-11-22 13:05:47,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:47,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:05:47,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532664182] [2020-11-22 13:05:47,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:47,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:47,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:47,108 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-22 13:05:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:47,124 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2020-11-22 13:05:47,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:47,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-22 13:05:47,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:47,143 INFO L225 Difference]: With dead ends: 32 [2020-11-22 13:05:47,144 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:05:47,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:05:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:05:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:05:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-11-22 13:05:47,187 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 7 [2020-11-22 13:05:47,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:47,188 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-11-22 13:05:47,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-22 13:05:47,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:05:47,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:47,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:47,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:47,190 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:47,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1361592338, now seen corresponding path program 1 times [2020-11-22 13:05:47,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:47,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201685801] [2020-11-22 13:05:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:47,237 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:05:47,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668019894] [2020-11-22 13:05:47,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/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 [2020-11-22 13:05:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:47,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:05:47,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:47,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:47,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201685801] [2020-11-22 13:05:47,421 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:05:47,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668019894] [2020-11-22 13:05:47,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:47,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:05:47,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820312392] [2020-11-22 13:05:47,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:47,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:47,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:47,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:47,425 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 6 states. [2020-11-22 13:05:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:47,471 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-11-22 13:05:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:05:47,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-11-22 13:05:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:47,473 INFO L225 Difference]: With dead ends: 34 [2020-11-22 13:05:47,473 INFO L226 Difference]: Without dead ends: 22 [2020-11-22 13:05:47,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-22 13:05:47,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-22 13:05:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-22 13:05:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-11-22 13:05:47,481 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2020-11-22 13:05:47,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:47,481 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-11-22 13:05:47,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:47,482 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-11-22 13:05:47,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:05:47,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:47,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:47,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-22 13:05:47,709 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:47,709 INFO L82 PathProgramCache]: Analyzing trace with hash 770735189, now seen corresponding path program 1 times [2020-11-22 13:05:47,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:47,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131959797] [2020-11-22 13:05:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:47,723 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:05:47,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851339307] [2020-11-22 13:05:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/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 [2020-11-22 13:05:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:47,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:05:47,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:47,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:47,849 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:06:06,837 WARN L193 SmtUtils]: Spent 17.18 s on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-11-22 13:06:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:06,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131959797] [2020-11-22 13:06:06,914 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:06,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851339307] [2020-11-22 13:06:06,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:06,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:06:06,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515153216] [2020-11-22 13:06:06,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:06,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:06,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:06,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:06,921 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-11-22 13:06:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:07,008 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2020-11-22 13:06:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:07,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 13:06:07,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:07,011 INFO L225 Difference]: With dead ends: 37 [2020-11-22 13:06:07,011 INFO L226 Difference]: Without dead ends: 28 [2020-11-22 13:06:07,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-22 13:06:07,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2020-11-22 13:06:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-22 13:06:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-11-22 13:06:07,015 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 9 [2020-11-22 13:06:07,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:07,016 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-22 13:06:07,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-11-22 13:06:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:06:07,021 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:07,021 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:07,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:07,242 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:07,242 INFO L82 PathProgramCache]: Analyzing trace with hash 83412096, now seen corresponding path program 1 times [2020-11-22 13:06:07,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:07,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827970948] [2020-11-22 13:06:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:07,268 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:07,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241592356] [2020-11-22 13:06:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:07,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:07,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:07,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:07,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827970948] [2020-11-22 13:06:07,404 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:07,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241592356] [2020-11-22 13:06:07,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [923013336] [2020-11-22 13:06:07,423 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-22 13:06:07,424 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:06:07,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:06:07,433 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:06:07,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:06:07,528 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 13:06:07,694 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:06:07,929 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-11-22 13:06:08,202 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-11-22 13:06:08,470 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-11-22 13:06:08,772 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-11-22 13:06:09,050 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-11-22 13:06:11,449 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-11-22 13:06:11,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-22 13:06:11,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5] total 11 [2020-11-22 13:06:11,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629323716] [2020-11-22 13:06:11,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:11,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:11,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:11,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:11,525 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 8 states. [2020-11-22 13:06:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:11,766 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2020-11-22 13:06:11,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:06:11,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-22 13:06:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:11,774 INFO L225 Difference]: With dead ends: 41 [2020-11-22 13:06:11,774 INFO L226 Difference]: Without dead ends: 25 [2020-11-22 13:06:11,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-22 13:06:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-22 13:06:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-22 13:06:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-22 13:06:11,778 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-11-22 13:06:11,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:11,779 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-22 13:06:11,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:11,779 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-11-22 13:06:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:06:11,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:11,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:11,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:11,985 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash 578455298, now seen corresponding path program 1 times [2020-11-22 13:06:11,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:11,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155704057] [2020-11-22 13:06:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:12,005 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:12,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905606169] [2020-11-22 13:06:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:12,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:12,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:06:12,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:06:12,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155704057] [2020-11-22 13:06:12,107 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:12,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905606169] [2020-11-22 13:06:12,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:12,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:06:12,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228908852] [2020-11-22 13:06:12,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:12,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:12,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:12,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:12,117 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-11-22 13:06:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:12,169 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-11-22 13:06:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:12,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-22 13:06:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:12,171 INFO L225 Difference]: With dead ends: 25 [2020-11-22 13:06:12,171 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:12,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:12,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-22 13:06:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:12,172 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:12,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:12,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:12,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:12,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:12,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:12,736 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-11-22 13:06:13,005 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-11-22 13:06:13,008 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,008 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-22 13:06:13,009 INFO L270 CegarLoopResult]: At program point L19-1(line 42) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~r~0 4294967296) (mod ULTIMATE.start_main_~b~0 4294967296)) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (< (mod ULTIMATE.start_main_~B~0 4294967296) 2147483647) (= (select |#valid| 0) 0) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#length| |#t~string1.base|) 9) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= ~counter~0 2) (< |#StackHeapBarrier| |#t~string0.base|) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= ULTIMATE.start_main_~q~0 0) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= |#t~string0.offset| 0))) [2020-11-22 13:06:13,009 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-22 13:06:13,009 INFO L277 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: true [2020-11-22 13:06:13,009 INFO L274 CegarLoopResult]: For program point L40(lines 40 49) no Hoare annotation was computed. [2020-11-22 13:06:13,009 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-11-22 13:06:13,009 INFO L274 CegarLoopResult]: For program point L36-1(lines 36 39) no Hoare annotation was computed. [2020-11-22 13:06:13,009 INFO L270 CegarLoopResult]: At program point L36-3(lines 36 39) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~q~0 0)) (.cse1 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and (<= 1 ~counter~0) .cse0 .cse1) (let ((.cse2 (select |#memory_int| |#t~string0.base|)) (.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse2 |#t~string0.offset|) 48) (< .cse3 2147483647) (= (select .cse2 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 9) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string0.base|) (<= 1 .cse3) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) .cse0 (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) .cse1 (<= 0 ~counter~0) (= |#t~string0.offset| 0))))) [2020-11-22 13:06:13,009 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L45-2(lines 26 52) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-22 13:06:13,010 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:13,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:13 BoogieIcfgContainer [2020-11-22 13:06:13,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:13,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:13,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:13,056 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:13,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:46" (3/4) ... [2020-11-22 13:06:13,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:13,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-22 13:06:13,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-22 13:06:13,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:13,069 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:13,091 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 <= counter && q == 0) && A == r) || ((((((((((((((((((((("divbin.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && B % 4294967296 < 2147483647) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["divbin.c"] == 9) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "0") && 1 <= B % 4294967296) && B == b) && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin.c") && #NULL == 0) && \valid["divbin.c"] == 1) && A == r) && 0 <= counter) && "0" == 0) [2020-11-22 13:06:13,092 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((("divbin.c" == 0 && \old(cond) == cond) && r % 4294967296 < b % 4294967296) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && B % 4294967296 < 2147483647) && \valid[0] == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && unknown-#length-unknown["divbin.c"] == 9) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && counter == 2) && unknown-#StackHeapBarrier-unknown < "0") && B == b) && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin.c") && #NULL == 0) && \valid["divbin.c"] == 1) && A == r) && \old(cond) == 1) && "0" == 0 [2020-11-22 13:06:13,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_780db02b-3ae3-4c39-a0ee-88a4ab90e25c/bin/utaipan/witness.graphml [2020-11-22 13:06:13,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:13,112 INFO L168 Benchmark]: Toolchain (without parser) took 27141.65 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 66.9 MB in the beginning and 63.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,113 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:13,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.05 ms. Allocated memory is still 88.1 MB. Free memory was 66.7 MB in the beginning and 57.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 55.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:13,114 INFO L168 Benchmark]: Boogie Preprocessor took 23.31 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 54.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,115 INFO L168 Benchmark]: RCFGBuilder took 519.52 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 54.1 MB in the beginning and 97.1 MB in the end (delta: -43.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,115 INFO L168 Benchmark]: TraceAbstraction took 26265.49 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 66.5 MB in the end (delta: 29.8 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,116 INFO L168 Benchmark]: Witness Printer took 56.12 ms. Allocated memory is still 121.6 MB. Free memory was 66.5 MB in the beginning and 63.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.05 ms. Allocated memory is still 88.1 MB. Free memory was 66.7 MB in the beginning and 57.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 55.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.31 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 54.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 519.52 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 54.1 MB in the beginning and 97.1 MB in the end (delta: -43.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26265.49 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 66.5 MB in the end (delta: 29.8 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. * Witness Printer took 56.12 ms. Allocated memory is still 121.6 MB. Free memory was 66.5 MB in the beginning and 63.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2020-11-22 13:06:13,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((1 <= counter && q == 0) && A == r) || ((((((((((((((((((((("divbin.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && B % 4294967296 < 2147483647) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["divbin.c"] == 9) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "0") && 1 <= B % 4294967296) && B == b) && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin.c") && #NULL == 0) && \valid["divbin.c"] == 1) && A == r) && 0 <= counter) && "0" == 0) - InvariantResult [Line: 42]: Loop Invariant [2020-11-22 13:06:13,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((((((((((((((((((((("divbin.c" == 0 && \old(cond) == cond) && r % 4294967296 < b % 4294967296) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && B % 4294967296 < 2147483647) && \valid[0] == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && unknown-#length-unknown["divbin.c"] == 9) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && counter == 2) && unknown-#StackHeapBarrier-unknown < "0") && B == b) && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin.c") && #NULL == 0) && \valid["divbin.c"] == 1) && A == r) && \old(cond) == 1) && "0" == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 20 SDslu, 143 SDs, 0 SdLazy, 125 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 22.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 202 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 5 QuantifiedInterpolants, 5000 SizeOfPredicates, 11 NumberOfNonLiveVariables, 267 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 16/18 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: OVERALL_TIME[ms]: 271, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME[ms]: 192, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 186, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 169, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 25, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 38, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 12, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 11, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 100, DAG_COMPRESSION_RETAINED_NODES: 33, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...