./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_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/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 c36731cef1d53320fac5b82a4561e604c7894e53 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:31:46,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:31:46,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:31:46,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:31:46,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:31:46,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:31:46,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:31:46,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:31:46,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:31:46,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:31:46,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:31:46,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:31:46,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:31:46,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:31:46,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:31:46,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:31:46,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:31:46,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:31:46,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:31:46,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:31:46,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:31:46,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:31:46,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:31:46,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:31:46,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:31:46,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:31:46,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:31:46,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:31:46,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:31:46,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:31:46,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:31:46,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:31:46,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:31:46,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:31:46,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:31:46,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:31:46,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:31:46,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:31:46,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:31:46,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:31:46,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:31:46,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:31:46,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:31:46,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:31:46,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:31:46,992 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:31:46,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:31:46,993 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:31:46,993 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:31:46,993 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:31:46,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:31:46,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:31:46,994 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:31:46,994 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:31:46,995 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:31:46,995 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:31:46,995 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:31:46,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:31:46,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:31:46,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:31:46,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:31:46,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:31:46,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:31:46,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:31:46,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:31:46,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:31:46,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:31:46,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:31:46,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:31:46,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:31:46,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:31:46,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:31:47,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:31:47,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:31:47,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:31:47,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:31:47,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:31:47,001 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:31:47,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:31:47,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:31:47,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:31:47,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:31:47,002 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_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c36731cef1d53320fac5b82a4561e604c7894e53 [2020-11-28 07:31:47,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:31:47,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:31:47,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:31:47,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:31:47,283 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:31:47,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-28 07:31:47,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/data/a235d6999/975eedb8a54c471fabf340d6e59a06df/FLAGe3814b506 [2020-11-28 07:31:47,817 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:31:47,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-28 07:31:47,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/data/a235d6999/975eedb8a54c471fabf340d6e59a06df/FLAGe3814b506 [2020-11-28 07:31:48,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/data/a235d6999/975eedb8a54c471fabf340d6e59a06df [2020-11-28 07:31:48,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:31:48,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:31:48,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:31:48,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:31:48,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:31:48,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21695c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48, skipping insertion in model container [2020-11-28 07:31:48,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:31:48,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:31:48,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:31:48,389 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:31:48,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:31:48,419 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:31:48,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48 WrapperNode [2020-11-28 07:31:48,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:31:48,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:31:48,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:31:48,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:31:48,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:31:48,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:31:48,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:31:48,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:31:48,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... [2020-11-28 07:31:48,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:31:48,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:31:48,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:31:48,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:31:48,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:31:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:31:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:31:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:31:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:31:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-28 07:31:48,997 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:31:48,997 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-28 07:31:48,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:48 BoogieIcfgContainer [2020-11-28 07:31:48,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:31:49,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:31:49,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:31:49,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:31:49,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:31:48" (1/3) ... [2020-11-28 07:31:49,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb9c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:31:49, skipping insertion in model container [2020-11-28 07:31:49,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:31:48" (2/3) ... [2020-11-28 07:31:49,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb9c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:31:49, skipping insertion in model container [2020-11-28 07:31:49,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:48" (3/3) ... [2020-11-28 07:31:49,008 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound1.i [2020-11-28 07:31:49,020 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:31:49,025 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:31:49,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:31:49,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:31:49,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:31:49,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:31:49,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:31:49,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:31:49,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:31:49,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:31:49,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:31:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-28 07:31:49,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:31:49,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:49,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:49,081 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:49,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1336728302, now seen corresponding path program 1 times [2020-11-28 07:31:49,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:49,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557425234] [2020-11-28 07:31:49,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:49,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557425234] [2020-11-28 07:31:49,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:31:49,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:31:49,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740672832] [2020-11-28 07:31:49,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:31:49,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:49,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:31:49,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:31:49,284 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-28 07:31:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:49,300 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2020-11-28 07:31:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:31:49,302 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 07:31:49,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:49,310 INFO L225 Difference]: With dead ends: 32 [2020-11-28 07:31:49,311 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:31:49,314 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 [2020-11-28 07:31:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:31:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:31:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:31:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-11-28 07:31:49,357 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 7 [2020-11-28 07:31:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:49,358 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-11-28 07:31:49,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:31:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-28 07:31:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:31:49,360 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:49,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:49,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:31:49,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:49,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash -956121442, now seen corresponding path program 1 times [2020-11-28 07:31:49,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:49,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689942859] [2020-11-28 07:31:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:49,393 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:31:49,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475253837] [2020-11-28 07:31:49,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:31:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:49,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:31:49,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:31:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:49,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:31:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:49,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689942859] [2020-11-28 07:31:49,539 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:31:49,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475253837] [2020-11-28 07:31:49,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:31:49,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 07:31:49,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353445802] [2020-11-28 07:31:49,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:31:49,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:49,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:31:49,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:31:49,546 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2020-11-28 07:31:49,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:49,594 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-11-28 07:31:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:31:49,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-28 07:31:49,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:49,597 INFO L225 Difference]: With dead ends: 30 [2020-11-28 07:31:49,597 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 07:31:49,598 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 [2020-11-28 07:31:49,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 07:31:49,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 07:31:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:31:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-28 07:31:49,607 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-28 07:31:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:49,609 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 07:31:49,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:31:49,610 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-28 07:31:49,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:31:49,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:49,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:49,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 07:31:49,832 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:49,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1936052027, now seen corresponding path program 1 times [2020-11-28 07:31:49,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:49,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800071828] [2020-11-28 07:31:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:49,848 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:31:49,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724257251] [2020-11-28 07:31:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:31:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:49,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:31:49,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:31:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:50,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:31:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:50,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800071828] [2020-11-28 07:31:50,041 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:31:50,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724257251] [2020-11-28 07:31:50,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:31:50,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 07:31:50,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147899200] [2020-11-28 07:31:50,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:31:50,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:50,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:31:50,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:31:50,047 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2020-11-28 07:31:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:31:50,073 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-11-28 07:31:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:31:50,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-28 07:31:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:31:50,074 INFO L225 Difference]: With dead ends: 25 [2020-11-28 07:31:50,074 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 07:31:50,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:31:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 07:31:50,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 07:31:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 07:31:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-28 07:31:50,078 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2020-11-28 07:31:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:31:50,078 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-28 07:31:50,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:31:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 07:31:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:31:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:31:50,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:31:50,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:31:50,288 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:31:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:31:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash -114504715, now seen corresponding path program 1 times [2020-11-28 07:31:50,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:31:50,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555588251] [2020-11-28 07:31:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:31:50,317 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:31:50,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438927428] [2020-11-28 07:31:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/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 [2020-11-28 07:31:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:31:50,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 07:31:50,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:31:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:50,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:31:50,489 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:31:52,668 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-28 07:31:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:31:52,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555588251] [2020-11-28 07:31:52,671 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:31:52,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438927428] [2020-11-28 07:31:52,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:31:52,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:31:52,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188075132] [2020-11-28 07:31:52,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 07:31:52,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:31:52,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 07:31:52,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:31:52,678 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2020-11-28 07:32:01,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:32:01,111 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-11-28 07:32:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:32:01,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-11-28 07:32:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:32:01,113 INFO L225 Difference]: With dead ends: 28 [2020-11-28 07:32:01,113 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:32:01,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:32:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:32:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 07:32:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:32:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 07:32:01,117 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2020-11-28 07:32:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:32:01,117 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 07:32:01,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 07:32:01,117 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 07:32:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:32:01,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:32:01,118 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:32:01,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:32:01,323 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:32:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:32:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1386743794, now seen corresponding path program 1 times [2020-11-28 07:32:01,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:32:01,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266832747] [2020-11-28 07:32:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:32:01,340 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:32:01,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194663248] [2020-11-28 07:32:01,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/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 [2020-11-28 07:32:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:32:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:32:01,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:32:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:32:01,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:32:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:32:01,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266832747] [2020-11-28 07:32:01,488 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:32:01,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194663248] [2020-11-28 07:32:01,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1391907742] [2020-11-28 07:32:01,512 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-28 07:32:01,512 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:32:01,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:32:01,526 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:32:01,526 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:32:02,129 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:32:02,736 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-11-28 07:32:03,758 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-11-28 07:32:03,943 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-28 07:32:04,280 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-11-28 07:32:04,623 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-11-28 07:32:04,890 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-11-28 07:32:05,207 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-11-28 07:32:05,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-28 07:32:05,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 11 [2020-11-28 07:32:05,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913163483] [2020-11-28 07:32:05,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:32:05,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:32:05,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:32:05,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:32:05,211 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 9 states. [2020-11-28 07:32:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:32:05,372 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-28 07:32:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:32:05,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-28 07:32:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:32:05,374 INFO L225 Difference]: With dead ends: 24 [2020-11-28 07:32:05,374 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:32:05,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:32:05,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:32:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 07:32:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:32:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 07:32:05,379 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-11-28 07:32:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:32:05,379 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-28 07:32:05,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:32:05,379 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 07:32:05,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:32:05,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:32:05,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:32:05,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:32:05,588 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:32:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:32:05,589 INFO L82 PathProgramCache]: Analyzing trace with hash -285577995, now seen corresponding path program 1 times [2020-11-28 07:32:05,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:32:05,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712003418] [2020-11-28 07:32:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:32:05,618 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:32:05,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016302945] [2020-11-28 07:32:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/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 [2020-11-28 07:32:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:32:05,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:32:05,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:32:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 07:32:05,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:32:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 07:32:05,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712003418] [2020-11-28 07:32:05,731 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:32:05,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016302945] [2020-11-28 07:32:05,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898980975] [2020-11-28 07:32:05,734 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-28 07:32:05,734 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:32:05,734 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:32:05,734 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:32:05,735 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:32:06,006 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:32:06,539 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2020-11-28 07:32:07,333 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2020-11-28 07:32:07,480 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-28 07:32:07,706 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-11-28 07:32:07,915 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-11-28 07:32:08,111 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-28 07:32:08,403 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-11-28 07:32:08,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-28 07:32:08,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 11 [2020-11-28 07:32:08,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945397070] [2020-11-28 07:32:08,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:32:08,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:32:08,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:32:08,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:32:08,406 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 9 states. [2020-11-28 07:32:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:32:08,506 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-28 07:32:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:32:08,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-28 07:32:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:32:08,508 INFO L225 Difference]: With dead ends: 17 [2020-11-28 07:32:08,508 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:32:08,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:32:08,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:32:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:32:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:32:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:32:08,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-28 07:32:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:32:08,509 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:32:08,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:32:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:32:08,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:32:08,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:32:08,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:32:09,228 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L270 CegarLoopResult]: At program point L19-1(line 40) the Hoare annotation is: false [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L277 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: true [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,233 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L38(lines 38 47) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 47) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2020-11-28 07:32:09,234 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)))) [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L43-2(lines 26 50) no Hoare annotation was computed. [2020-11-28 07:32:09,234 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 07:32:09,242 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,242 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,246 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:32:09 BoogieIcfgContainer [2020-11-28 07:32:09,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:32:09,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:32:09,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:32:09,261 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:32:09,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:31:48" (3/4) ... [2020-11-28 07:32:09,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:32:09,274 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 07:32:09,274 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:32:09,274 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:32:09,275 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:32:09,325 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7182fef0-9329-4bd8-85b1-fab5dd1f6ba3/bin/utaipan/witness.graphml [2020-11-28 07:32:09,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:32:09,327 INFO L168 Benchmark]: Toolchain (without parser) took 21147.16 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 66.0 MB in the beginning and 66.8 MB in the end (delta: -850.5 kB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,327 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 49.3 MB in the beginning and 49.3 MB in the end (delta: 54.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:32:09,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.45 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 66.6 MB in the end (delta: -951.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 65.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,328 INFO L168 Benchmark]: Boogie Preprocessor took 21.23 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 64.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:32:09,329 INFO L168 Benchmark]: RCFGBuilder took 522.16 ms. Allocated memory is still 88.1 MB. Free memory was 64.0 MB in the beginning and 47.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,331 INFO L168 Benchmark]: TraceAbstraction took 20260.49 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 46.7 MB in the beginning and 70.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,332 INFO L168 Benchmark]: Witness Printer took 64.50 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:09,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 49.3 MB in the beginning and 49.3 MB in the end (delta: 54.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.45 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 66.6 MB in the end (delta: -951.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 65.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.23 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 64.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 522.16 ms. Allocated memory is still 88.1 MB. Free memory was 64.0 MB in the beginning and 47.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20260.49 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 46.7 MB in the beginning and 70.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 64.50 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 [2020-11-28 07:32:09,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:32:09,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:32:09,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:32:09,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:32:09,358 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: 19.6s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 32 SDslu, 91 SDs, 0 SdLazy, 139 SolverSat, 9 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.9s 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, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.7s 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]: 890, 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]: 314, 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]: 303, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 181, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 50, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME[ms]: 395, 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]: 8, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME[ms]: 78, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 27, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 26, 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]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 28, 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...