./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.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_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 8c067034d8676e097c36fd744c405062d302fbf2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:41:01,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:41:01,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:41:01,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:41:01,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:41:01,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:41:01,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:41:01,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:41:01,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:41:01,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:41:01,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:41:01,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:41:01,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:41:01,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:41:01,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:41:01,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:41:01,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:41:01,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:41:01,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:41:01,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:41:01,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:41:01,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:41:01,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:41:01,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:41:01,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:41:01,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:41:01,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:41:01,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:41:01,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:41:01,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:41:01,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:41:01,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:41:01,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:41:01,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:41:01,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:41:01,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:41:01,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:41:01,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:41:01,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:41:01,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:41:01,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:41:01,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:41:01,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:41:01,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:41:01,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:41:01,965 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:41:01,965 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:41:01,965 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:41:01,965 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:41:01,965 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:41:01,966 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:41:01,966 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:41:01,967 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:41:01,967 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:41:01,967 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:41:01,968 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:41:01,968 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:41:01,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:41:01,969 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:41:01,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:41:01,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:41:01,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:41:01,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:41:01,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:41:01,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:41:01,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:41:01,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:41:01,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:41:01,971 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:41:01,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:41:01,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:41:01,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:41:01,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:41:01,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:41:01,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:41:01,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:41:01,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:41:01,973 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:41:01,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:41:01,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:41:01,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:41:01,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:41:01,974 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_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c067034d8676e097c36fd744c405062d302fbf2 [2020-11-30 01:41:02,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:41:02,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:41:02,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:41:02,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:41:02,302 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:41:02,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-30 01:41:02,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/data/700e8bd15/5d91dd981077499f97948a7121a88913/FLAGbe5a5bb69 [2020-11-30 01:41:02,828 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:41:02,829 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-30 01:41:02,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/data/700e8bd15/5d91dd981077499f97948a7121a88913/FLAGbe5a5bb69 [2020-11-30 01:41:03,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/data/700e8bd15/5d91dd981077499f97948a7121a88913 [2020-11-30 01:41:03,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:41:03,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:41:03,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:41:03,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:41:03,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:41:03,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35672686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03, skipping insertion in model container [2020-11-30 01:41:03,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:41:03,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:41:03,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:41:03,459 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:41:03,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:41:03,509 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:41:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03 WrapperNode [2020-11-30 01:41:03,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:41:03,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:41:03,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:41:03,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:41:03,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:41:03,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:41:03,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:41:03,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:41:03,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... [2020-11-30 01:41:03,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:41:03,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:41:03,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:41:03,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:41:03,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 [2020-11-30 01:41:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:41:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:41:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:41:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:41:04,237 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:41:04,237 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 01:41:04,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:41:04 BoogieIcfgContainer [2020-11-30 01:41:04,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:41:04,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:41:04,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:41:04,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:41:04,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:41:03" (1/3) ... [2020-11-30 01:41:04,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ec3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:41:04, skipping insertion in model container [2020-11-30 01:41:04,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:41:03" (2/3) ... [2020-11-30 01:41:04,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ec3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:41:04, skipping insertion in model container [2020-11-30 01:41:04,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:41:04" (3/3) ... [2020-11-30 01:41:04,249 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound1.i [2020-11-30 01:41:04,261 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:41:04,266 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:41:04,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:41:04,300 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:41:04,301 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:41:04,301 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:41:04,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:41:04,302 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:41:04,302 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:41:04,302 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:41:04,302 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:41:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-30 01:41:04,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:41:04,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:04,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:04,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:04,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1336728302, now seen corresponding path program 1 times [2020-11-30 01:41:04,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:04,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568917041] [2020-11-30 01:41:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:04,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568917041] [2020-11-30 01:41:04,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:41:04,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:41:04,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757708899] [2020-11-30 01:41:04,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:41:04,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:04,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:41:04,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:41:04,475 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-30 01:41:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:04,490 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2020-11-30 01:41:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:41:04,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:41:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:04,515 INFO L225 Difference]: With dead ends: 32 [2020-11-30 01:41:04,515 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 01:41:04,518 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 [2020-11-30 01:41:04,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 01:41:04,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 01:41:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 01:41:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-11-30 01:41:04,599 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 7 [2020-11-30 01:41:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:04,599 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-11-30 01:41:04,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:41:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-30 01:41:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:41:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:04,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:04,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:41:04,601 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash -956121442, now seen corresponding path program 1 times [2020-11-30 01:41:04,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:04,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863524064] [2020-11-30 01:41:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:04,620 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:41:04,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887759399] [2020-11-30 01:41:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 [2020-11-30 01:41:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:04,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:41:04,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:41:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:04,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:41:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:04,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863524064] [2020-11-30 01:41:04,742 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:41:04,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887759399] [2020-11-30 01:41:04,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:41:04,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 01:41:04,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105715309] [2020-11-30 01:41:04,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:41:04,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:04,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:41:04,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:41:04,750 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2020-11-30 01:41:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:04,778 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-11-30 01:41:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:41:04,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:41:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:04,780 INFO L225 Difference]: With dead ends: 30 [2020-11-30 01:41:04,780 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 01:41:04,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:41:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 01:41:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 01:41:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:41:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 01:41:04,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-30 01:41:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:04,788 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 01:41:04,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:41:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 01:41:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:41:04,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:04,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:05,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 01:41:05,009 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:05,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:05,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1936052027, now seen corresponding path program 1 times [2020-11-30 01:41:05,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:05,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762817092] [2020-11-30 01:41:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:05,027 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:41:05,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43333813] [2020-11-30 01:41:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 [2020-11-30 01:41:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:05,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:41:05,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:41:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:05,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:41:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:05,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762817092] [2020-11-30 01:41:05,156 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:41:05,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43333813] [2020-11-30 01:41:05,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:41:05,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-30 01:41:05,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330185446] [2020-11-30 01:41:05,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:41:05,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:05,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:41:05,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:41:05,162 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2020-11-30 01:41:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:05,206 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-11-30 01:41:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:41:05,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-30 01:41:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:05,208 INFO L225 Difference]: With dead ends: 25 [2020-11-30 01:41:05,208 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 01:41:05,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:41:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 01:41:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 01:41:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 01:41:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-30 01:41:05,212 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2020-11-30 01:41:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:05,212 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-30 01:41:05,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:41:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-30 01:41:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:41:05,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:05,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:05,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:41:05,425 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:05,426 INFO L82 PathProgramCache]: Analyzing trace with hash -114504715, now seen corresponding path program 1 times [2020-11-30 01:41:05,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:05,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584378006] [2020-11-30 01:41:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:05,442 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:41:05,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444580408] [2020-11-30 01:41:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 [2020-11-30 01:41:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:05,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:41:05,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:41:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:05,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:41:05,610 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:41:12,080 WARN L193 SmtUtils]: Spent 4.22 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 01:41:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:12,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584378006] [2020-11-30 01:41:12,085 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:41:12,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444580408] [2020-11-30 01:41:12,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:41:12,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 01:41:12,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768552512] [2020-11-30 01:41:12,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:41:12,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:41:12,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-11-30 01:41:12,090 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2020-11-30 01:41:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:16,537 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-11-30 01:41:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:41:16,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-11-30 01:41:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:16,538 INFO L225 Difference]: With dead ends: 28 [2020-11-30 01:41:16,538 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 01:41:16,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=30, Invalid=41, Unknown=1, NotChecked=0, Total=72 [2020-11-30 01:41:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 01:41:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 01:41:16,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 01:41:16,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-30 01:41:16,543 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2020-11-30 01:41:16,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:16,543 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-30 01:41:16,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:41:16,543 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-30 01:41:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:41:16,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:16,544 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:16,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:41:16,757 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1386743794, now seen corresponding path program 1 times [2020-11-30 01:41:16,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:16,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538143273] [2020-11-30 01:41:16,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:16,774 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:41:16,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699082573] [2020-11-30 01:41:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/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 [2020-11-30 01:41:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:16,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:41:16,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:41:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:16,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:41:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:41:16,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538143273] [2020-11-30 01:41:16,901 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:41:16,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699082573] [2020-11-30 01:41:16,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [380489291] [2020-11-30 01:41:16,920 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-30 01:41:16,921 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 01:41:16,925 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 01:41:16,929 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 01:41:16,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 01:41:17,470 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 01:41:17,997 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-11-30 01:41:18,935 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-11-30 01:41:19,344 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-11-30 01:41:19,596 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-11-30 01:41:19,859 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-11-30 01:41:20,224 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-11-30 01:41:20,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:41:20,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 11 [2020-11-30 01:41:20,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852899412] [2020-11-30 01:41:20,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:41:20,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:20,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:41:20,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:41:20,228 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 9 states. [2020-11-30 01:41:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:20,415 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-30 01:41:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:41:20,421 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-30 01:41:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:20,422 INFO L225 Difference]: With dead ends: 24 [2020-11-30 01:41:20,422 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 01:41:20,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:41:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 01:41:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 01:41:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 01:41:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-30 01:41:20,427 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-11-30 01:41:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:20,427 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-30 01:41:20,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:41:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-30 01:41:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:41:20,428 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:41:20,428 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:41:20,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:41:20,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:41:20,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:41:20,629 INFO L82 PathProgramCache]: Analyzing trace with hash -285577995, now seen corresponding path program 1 times [2020-11-30 01:41:20,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:41:20,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137678388] [2020-11-30 01:41:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:41:20,651 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:41:20,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807471208] [2020-11-30 01:41:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:41:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:41:20,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:41:20,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:41:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:41:20,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:41:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:41:20,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137678388] [2020-11-30 01:41:20,766 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:41:20,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807471208] [2020-11-30 01:41:20,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208293895] [2020-11-30 01:41:20,768 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-30 01:41:20,769 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 01:41:20,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 01:41:20,769 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 01:41:20,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 01:41:21,004 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 01:41:21,549 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2020-11-30 01:41:22,333 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2020-11-30 01:41:22,490 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-30 01:41:22,718 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-11-30 01:41:22,913 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-11-30 01:41:23,109 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-30 01:41:23,342 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-11-30 01:41:23,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:41:23,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 11 [2020-11-30 01:41:23,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723795585] [2020-11-30 01:41:23,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:41:23,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:41:23,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:41:23,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:41:23,346 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 9 states. [2020-11-30 01:41:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:41:23,501 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-30 01:41:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:41:23,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-30 01:41:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:41:23,504 INFO L225 Difference]: With dead ends: 17 [2020-11-30 01:41:23,504 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:41:23,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:41:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:41:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:41:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:41:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:41:23,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-30 01:41:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:41:23,505 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:41:23,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:41:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:41:23,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:41:23,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:41:23,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:41:24,268 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-11-30 01:41:24,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,272 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L270 CegarLoopResult]: At program point L19-1(line 40) the Hoare annotation is: false [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L277 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: true [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L38(lines 38 47) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 47) no Hoare annotation was computed. [2020-11-30 01:41:24,273 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2020-11-30 01:41:24,274 INFO L270 CegarLoopResult]: At program point L34-3(lines 34 37) the Hoare annotation is: (let ((.cse17 (select |#memory_int| |#t~string0.base|))) (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (= ULTIMATE.start_main_~B~0 1)) (.cse2 (= (select |#length| |#t~string1.base|) 10)) (.cse3 (= |#NULL.base| 0)) (.cse4 (= (select .cse17 |#t~string0.offset|) 48)) (.cse5 (= (select .cse17 (+ |#t~string0.offset| 1)) 0)) (.cse6 (= (select |#valid| 0) 0)) (.cse7 (= 2 (select |#length| |#t~string0.base|))) (.cse8 (< |#StackHeapBarrier| |#t~string0.base|)) (.cse9 (= (select |#valid| |#t~string0.base|) 1)) (.cse10 (< 0 |#StackHeapBarrier|)) (.cse11 (= ULTIMATE.start_main_~q~0 0)) (.cse12 (< |#StackHeapBarrier| |#t~string1.base|)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (= (select |#valid| |#t~string1.base|) 1)) (.cse15 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse16 (= |#t~string0.offset| 0))) (or (and .cse0 .cse1 (= ~counter~0 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 (<= (mod ULTIMATE.start_main_~B~0 4294967296) (mod ULTIMATE.start_main_~r~0 4294967296)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ~counter~0 1) .cse10 .cse11 .cse12 .cse13 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~b~0) .cse14 .cse15 .cse16)))) [2020-11-30 01:41:24,274 INFO L274 CegarLoopResult]: For program point L43-2(lines 26 50) no Hoare annotation was computed. [2020-11-30 01:41:24,274 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 01:41:24,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:41:24 BoogieIcfgContainer [2020-11-30 01:41:24,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:41:24,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:41:24,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:41:24,305 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:41:24,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:41:04" (3/4) ... [2020-11-30 01:41:24,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:41:24,316 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 01:41:24,316 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:41:24,317 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:41:24,317 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:41:24,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_22e0059a-fe3c-4892-ae7c-b7319e1e9170/bin/utaipan/witness.graphml [2020-11-30 01:41:24,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:41:24,379 INFO L168 Benchmark]: Toolchain (without parser) took 21152.95 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 81.3 MB in the beginning and 44.3 MB in the end (delta: 37.1 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,380 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:41:24,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.29 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 84.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.40 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 82.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,381 INFO L168 Benchmark]: Boogie Preprocessor took 23.44 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.8 MB in the end (delta: 920.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:41:24,382 INFO L168 Benchmark]: RCFGBuilder took 672.73 ms. Allocated memory is still 107.0 MB. Free memory was 81.8 MB in the beginning and 65.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,382 INFO L168 Benchmark]: TraceAbstraction took 20063.10 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 64.8 MB in the beginning and 47.4 MB in the end (delta: 17.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,383 INFO L168 Benchmark]: Witness Printer took 73.96 ms. Allocated memory is still 134.2 MB. Free memory was 46.4 MB in the beginning and 44.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:41:24,385 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 77.6 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.29 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 84.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.40 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 82.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.44 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.8 MB in the end (delta: 920.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 672.73 ms. Allocated memory is still 107.0 MB. Free memory was 81.8 MB in the beginning and 65.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20063.10 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 64.8 MB in the beginning and 47.4 MB in the end (delta: 17.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Witness Printer took 73.96 ms. Allocated memory is still 134.2 MB. Free memory was 46.4 MB in the beginning and 44.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #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 #length - 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 #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 #length - 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 #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 #length - 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 #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: 34]: Loop Invariant [2020-11-30 01:41:24,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:41:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:41:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:41:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:41:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((((((((((((((((("divbin2.c" == 0 && B == 1) && counter == 0) && unknown-#length-unknown["divbin2.c"] == 10) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && unknown-#StackHeapBarrier-unknown < "0") && B == b) && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin2.c") && #NULL == 0) && \valid["divbin2.c"] == 1) && A == r) && "0" == 0) || ((((((((((((((((((("divbin2.c" == 0 && B == 1) && unknown-#length-unknown["divbin2.c"] == 10) && B % 4294967296 <= r % 4294967296) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && q == 0) && unknown-#StackHeapBarrier-unknown < "divbin2.c") && #NULL == 0) && B * 2 == b) && \valid["divbin2.c"] == 1) && A == r) && "0" == 0) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.4s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 32 SDslu, 91 SDs, 0 SdLazy, 139 SolverSat, 9 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 168 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 362 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3529 SizeOfPredicates, 10 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 28/32 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]: 787, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 26, TOOLS_POST_TIME[ms]: 238, 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: 26, TOOLS_QUANTIFIERELIM_TIME[ms]: 227, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 131, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 50, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME[ms]: 400, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME[ms]: 90, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 22, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 21, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, 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]: 15, DAG_COMPRESSION_PROCESSED_NODES: 236, DAG_COMPRESSION_RETAINED_NODES: 64, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...