./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/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 c8679dad194af8e09f8dc0270d50ea9ce875abb3 ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 05:51:05,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:51:05,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:51:05,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:51:05,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:51:05,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:51:05,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:51:05,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:51:05,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:51:05,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:51:05,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:51:05,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:51:05,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:51:05,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:51:05,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:51:05,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:51:05,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:51:05,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:51:05,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:51:05,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:51:05,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:51:05,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:51:05,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:51:05,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:51:05,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:51:05,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:51:05,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:51:05,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:51:05,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:51:05,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:51:05,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:51:05,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:51:05,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:51:05,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:51:05,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:51:05,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:51:05,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:51:05,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:51:05,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:51:05,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:51:05,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:51:05,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:51:05,617 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:51:05,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:51:05,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:51:05,618 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:51:05,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:51:05,618 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:51:05,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:51:05,618 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:51:05,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:51:05,619 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:51:05,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:51:05,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:51:05,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:51:05,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:51:05,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:51:05,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:51:05,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:51:05,623 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_83c211b8-a82f-4005-9438-d828a6fa1f10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8679dad194af8e09f8dc0270d50ea9ce875abb3 [2020-12-09 05:51:05,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:51:05,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:51:05,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:51:05,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:51:05,804 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:51:05,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/../../sv-benchmarks/c/bitvector/modulus-2.i [2020-12-09 05:51:05,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/data/a03c3da16/45195a525fdf4f80b55129545760d055/FLAG16081353b [2020-12-09 05:51:06,239 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:51:06,239 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/sv-benchmarks/c/bitvector/modulus-2.i [2020-12-09 05:51:06,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/data/a03c3da16/45195a525fdf4f80b55129545760d055/FLAG16081353b [2020-12-09 05:51:06,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/data/a03c3da16/45195a525fdf4f80b55129545760d055 [2020-12-09 05:51:06,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:51:06,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:51:06,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:51:06,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:51:06,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:51:06,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161a7fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06, skipping insertion in model container [2020-12-09 05:51:06,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:51:06,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:51:06,377 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2020-12-09 05:51:06,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:51:06,394 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:51:06,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2020-12-09 05:51:06,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:51:06,419 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:51:06,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06 WrapperNode [2020-12-09 05:51:06,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:51:06,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:51:06,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:51:06,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:51:06,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:51:06,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:51:06,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:51:06,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:51:06,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... [2020-12-09 05:51:06,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:51:06,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:51:06,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:51:06,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:51:06,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/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 [2020-12-09 05:51:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:51:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:51:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:51:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:51:06,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:51:06,744 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 05:51:06,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:51:06 BoogieIcfgContainer [2020-12-09 05:51:06,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:51:06,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:51:06,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:51:06,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:51:06,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:51:06" (1/3) ... [2020-12-09 05:51:06,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cf67da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:51:06, skipping insertion in model container [2020-12-09 05:51:06,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:51:06" (2/3) ... [2020-12-09 05:51:06,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cf67da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:51:06, skipping insertion in model container [2020-12-09 05:51:06,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:51:06" (3/3) ... [2020-12-09 05:51:06,751 INFO L111 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2020-12-09 05:51:06,761 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:51:06,763 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:51:06,771 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:51:06,788 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:51:06,788 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:51:06,788 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:51:06,788 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:51:06,788 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:51:06,788 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:51:06,788 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:51:06,788 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:51:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 05:51:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 05:51:06,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:51:06,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 05:51:06,803 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:51:06,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:51:06,807 INFO L82 PathProgramCache]: Analyzing trace with hash 94623488, now seen corresponding path program 1 times [2020-12-09 05:51:06,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:51:06,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392804539] [2020-12-09 05:51:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:51:06,890 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:51:06,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160312719] [2020-12-09 05:51:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/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 [2020-12-09 05:51:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:51:06,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 05:51:06,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:51:07,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 05:51:07,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 05:51:07,095 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 05:51:07,097 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 05:51:07,110 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 05:51:07,120 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 05:51:07,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 05:51:07,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 05:51:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:51:08,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:51:08,057 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-09 05:51:08,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392804539] [2020-12-09 05:51:08,060 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:51:08,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160312719] [2020-12-09 05:51:08,060 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger: modulus not positive [2020-12-09 05:51:08,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [185703] [2020-12-09 05:51:08,082 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 05:51:08,083 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 05:51:08,087 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 05:51:08,092 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 05:51:08,093 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 05:51:08,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 05:51:08,232 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 05:51:08,576 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-12-09 05:51:08,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:51:08,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 05:51:08,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135110419] [2020-12-09 05:51:08,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 05:51:08,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:51:08,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 05:51:08,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 05:51:08,592 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2020-12-09 05:51:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:51:08,661 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2020-12-09 05:51:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 05:51:08,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-12-09 05:51:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:51:08,667 INFO L225 Difference]: With dead ends: 17 [2020-12-09 05:51:08,668 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 05:51:08,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 05:51:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 05:51:08,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 05:51:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 05:51:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-12-09 05:51:08,692 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2020-12-09 05:51:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:51:08,692 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-12-09 05:51:08,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 05:51:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-09 05:51:08,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 05:51:08,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:51:08,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:51:08,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 05:51:08,893 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:51:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:51:08,894 INFO L82 PathProgramCache]: Analyzing trace with hash 696247596, now seen corresponding path program 1 times [2020-12-09 05:51:08,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:51:08,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033711191] [2020-12-09 05:51:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:51:08,903 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:51:08,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535987495] [2020-12-09 05:51:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/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 [2020-12-09 05:51:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:51:08,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 05:51:08,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:51:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:51:08,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:51:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:51:08,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033711191] [2020-12-09 05:51:08,989 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:51:08,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535987495] [2020-12-09 05:51:08,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:51:08,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-12-09 05:51:08,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490430755] [2020-12-09 05:51:08,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 05:51:08,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:51:08,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 05:51:08,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 05:51:08,992 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 5 states. [2020-12-09 05:51:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:51:09,019 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-12-09 05:51:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:51:09,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 05:51:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:51:09,020 INFO L225 Difference]: With dead ends: 14 [2020-12-09 05:51:09,020 INFO L226 Difference]: Without dead ends: 9 [2020-12-09 05:51:09,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 05:51:09,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-09 05:51:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-09 05:51:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 05:51:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-12-09 05:51:09,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2020-12-09 05:51:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:51:09,024 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-12-09 05:51:09,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 05:51:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-12-09 05:51:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 05:51:09,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:51:09,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:51:09,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:51:09,225 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:51:09,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:51:09,226 INFO L82 PathProgramCache]: Analyzing trace with hash 69296716, now seen corresponding path program 1 times [2020-12-09 05:51:09,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:51:09,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990578723] [2020-12-09 05:51:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:51:09,237 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:51:09,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2085303097] [2020-12-09 05:51:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/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 [2020-12-09 05:51:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:51:09,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 05:51:09,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:51:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 05:51:09,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:51:10,081 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2020-12-09 05:51:12,423 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod c_ULTIMATE.start_main_~d~0 4294967296))) (let ((.cse1 (+ (div (+ (* .cse0 (- 1)) (- 1)) 4294967296) 1))) (or (<= (div (+ .cse0 (- 4294967296)) (- 4294967296)) .cse1) (forall ((v_prenex_1 Int)) (let ((.cse2 (mod c_ULTIMATE.start_main_~d~0 4294967296))) (let ((.cse3 (+ .cse2 (* 4294967296 v_prenex_1)))) (or (<= 0 (div (* (mod (mod (+ .cse2 (* v_prenex_1 4294967296)) .cse2) 4294967296) (- 1)) 4294967296)) (<= 4294967296 .cse3) (< .cse3 0))))) (< 0 .cse1)))) (forall ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208 Int) (aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 Int) (v_prenex_2 Int) (v_prenex_3 Int) (aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 Int)) (let ((.cse10 (* 4294967296 v_prenex_3)) (.cse8 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290))) (let ((.cse4 (+ .cse8 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290)) (.cse9 (* 4294967296 v_prenex_2)) (.cse7 (* 4294967296 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208)) (.cse5 (mod c_ULTIMATE.start_main_~d~0 4294967296)) (.cse6 (+ .cse8 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290))) (or (< .cse4 0) (<= 4294967296 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290) (<= 4294967296 .cse4) (= .cse5 .cse4) (< .cse6 0) (< .cse5 .cse6) (< .cse7 (+ .cse8 .cse9 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 1)) (<= (+ .cse8 .cse9 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 4294967297) .cse7) (<= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208 (div (+ (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 (- 4294967296)) (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 .cse5) 4294967296) (* v_prenex_2 (- 4294967296)) (* v_prenex_3 (- 4294967296)) (* aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 (- 1)) (- 1)) (- 4294967296))) (< aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 0) (<= 4294967296 .cse6))))) (forall ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63 Int) (aux_div_ULTIMATE.start_main_~m~0_41 Int) (aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52 Int) (aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 Int) (aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 Int)) (let ((.cse15 (* 4294967296 aux_div_ULTIMATE.start_main_~m~0_41)) (.cse17 (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52)) (.cse18 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279))) (let ((.cse16 (mod c_ULTIMATE.start_main_~d~0 4294967296)) (.cse11 (+ aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 .cse18 4294967296)) (.cse13 (+ (* 4294967296 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63) .cse15 .cse17)) (.cse12 (+ .cse15 .cse17)) (.cse14 (+ aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 .cse18))) (or (< .cse11 .cse12) (<= .cse13 .cse14) (< .cse11 .cse15) (< (+ .cse15 .cse16) .cse11) (< aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 0) (= .cse11 (+ .cse15 .cse16 .cse17)) (<= (div (+ (mod (mod (+ (* aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63 (- 4294967296)) (* aux_div_ULTIMATE.start_main_~m~0_41 (- 4294967296)) (* aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52 (- 4294967296)) aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 4294967296) 4294967296) .cse16) 4294967296) (* aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (- 1)) (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (- 4294967296)) (- 4294967296)) (- 4294967296)) (+ aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 1)) (<= .cse15 .cse14) (< .cse11 .cse13) (<= 4294967296 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279) (<= .cse12 .cse14)))))) is different from false [2020-12-09 05:51:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2020-12-09 05:51:12,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990578723] [2020-12-09 05:51:12,785 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:51:12,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085303097] [2020-12-09 05:51:12,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 05:51:12,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-12-09 05:51:12,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928429906] [2020-12-09 05:51:12,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 05:51:12,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:51:12,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 05:51:12,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=29, Unknown=1, NotChecked=10, Total=56 [2020-12-09 05:51:12,787 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 5 states. [2020-12-09 05:51:12,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:51:12,820 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-12-09 05:51:12,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 05:51:12,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 05:51:12,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:51:12,821 INFO L225 Difference]: With dead ends: 9 [2020-12-09 05:51:12,821 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:51:12,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=38, Unknown=1, NotChecked=12, Total=72 [2020-12-09 05:51:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:51:12,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:51:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:51:12,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:51:12,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-12-09 05:51:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:51:12,822 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:51:12,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 05:51:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:51:12,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:51:13,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:51:13,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:51:13,219 INFO L258 CegarLoopResult]: At program point L48-2(lines 48 51) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point L44(lines 44 58) no Hoare annotation was computed. [2020-12-09 05:51:13,219 INFO L258 CegarLoopResult]: At program point L44-1(lines 44 58) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:51:13,219 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-12-09 05:51:13,220 INFO L258 CegarLoopResult]: At program point L46-2(lines 46 53) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~m~0) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2020-12-09 05:51:13,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:51:13 BoogieIcfgContainer [2020-12-09 05:51:13,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:51:13,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:51:13,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:51:13,237 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:51:13,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:51:06" (3/4) ... [2020-12-09 05:51:13,239 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 05:51:13,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 05:51:13,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-09 05:51:13,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 05:51:13,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:51:13,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2020-12-09 05:51:13,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && n == m) && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2020-12-09 05:51:13,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2020-12-09 05:51:13,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83c211b8-a82f-4005-9438-d828a6fa1f10/bin/utaipan/witness.graphml [2020-12-09 05:51:13,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:51:13,288 INFO L168 Benchmark]: Toolchain (without parser) took 7031.60 ms. Allocated memory was 146.8 MB in the beginning and 218.1 MB in the end (delta: 71.3 MB). Free memory was 118.5 MB in the beginning and 195.1 MB in the end (delta: -76.6 MB). Peak memory consumption was 86.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,289 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 40.6 MB in the beginning and 40.5 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:51:13,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.33 ms. Allocated memory is still 146.8 MB. Free memory was 118.4 MB in the beginning and 108.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.27 ms. Allocated memory is still 146.8 MB. Free memory was 108.4 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,290 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 ms. Allocated memory is still 146.8 MB. Free memory was 107.0 MB in the beginning and 105.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:51:13,290 INFO L168 Benchmark]: RCFGBuilder took 278.24 ms. Allocated memory is still 146.8 MB. Free memory was 105.7 MB in the beginning and 87.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,291 INFO L168 Benchmark]: TraceAbstraction took 6489.33 ms. Allocated memory was 146.8 MB in the beginning and 218.1 MB in the end (delta: 71.3 MB). Free memory was 87.0 MB in the beginning and 109.3 MB in the end (delta: -22.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,291 INFO L168 Benchmark]: Witness Printer took 51.13 ms. Allocated memory is still 218.1 MB. Free memory was 109.3 MB in the beginning and 195.1 MB in the end (delta: -85.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:51:13,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 40.6 MB in the beginning and 40.5 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 162.33 ms. Allocated memory is still 146.8 MB. Free memory was 118.4 MB in the beginning and 108.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.27 ms. Allocated memory is still 146.8 MB. Free memory was 108.4 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.46 ms. Allocated memory is still 146.8 MB. Free memory was 107.0 MB in the beginning and 105.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.24 ms. Allocated memory is still 146.8 MB. Free memory was 105.7 MB in the beginning and 87.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6489.33 ms. Allocated memory was 146.8 MB in the beginning and 218.1 MB in the end (delta: 71.3 MB). Free memory was 87.0 MB in the beginning and 109.3 MB in the end (delta: -22.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 51.13 ms. Allocated memory is still 218.1 MB. Free memory was 109.3 MB in the beginning and 195.1 MB in the end (delta: -85.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && n == m) && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 20 SDslu, 14 SDs, 0 SdLazy, 41 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 235 HoareAnnotationTreeSize, 3 FomulaSimplifications, 208 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 3 QuantifiedInterpolants, 8314 SizeOfPredicates, 11 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 150, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 4, TOOLS_POST_TIME[ms]: 95, 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: 4, TOOLS_QUANTIFIERELIM_TIME[ms]: 93, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 90, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 9, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 21, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, 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]: 2, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 5, DAG_COMPRESSION_PROCESSED_NODES: 25, DAG_COMPRESSION_RETAINED_NODES: 15, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...