./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash becf68b1b41bf8f9c75117f82605e436bc8d5a41 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:01:00,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:01:00,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:01:00,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:01:00,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:01:00,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:01:00,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:01:00,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:01:00,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:01:00,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:01:00,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:01:00,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:01:00,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:01:00,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:01:00,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:01:00,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:01:00,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:01:00,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:01:00,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:01:00,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:01:00,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:01:00,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:01:00,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:01:00,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:01:00,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:01:00,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:01:00,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:01:00,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:01:00,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:01:00,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:01:00,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:01:00,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:01:00,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:01:00,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:01:00,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:01:00,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:01:00,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:01:00,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:01:00,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:01:00,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:01:00,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:01:00,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-30 02:01:00,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:01:00,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:01:00,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:01:00,983 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:01:00,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:01:00,983 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:01:00,984 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:01:00,984 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:01:00,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:01:00,984 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:01:00,985 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:01:00,986 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:01:00,986 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:01:00,986 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:01:00,986 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:01:00,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:01:00,987 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:01:00,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:01:00,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:01:00,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:01:00,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:01:00,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:01:00,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:01:00,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:01:00,989 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:01:00,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:01:00,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:01:00,990 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:01:00,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:01:00,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:01:00,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:01:00,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:01:00,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:00,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:01:00,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:01:00,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:01:00,992 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:01:00,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:01:00,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:01:00,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:01:00,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:01:00,993 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_581f84de-d8ea-4c63-90f8-a7d65050085b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> becf68b1b41bf8f9c75117f82605e436bc8d5a41 [2020-11-30 02:01:01,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:01:01,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:01:01,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:01:01,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:01:01,317 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:01:01,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2020-11-30 02:01:01,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/data/8f9b242e1/df403ea6841c4a9eb548ea34b216fd57/FLAG9de80eb7d [2020-11-30 02:01:01,983 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:01:01,983 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2020-11-30 02:01:01,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/data/8f9b242e1/df403ea6841c4a9eb548ea34b216fd57/FLAG9de80eb7d [2020-11-30 02:01:02,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/data/8f9b242e1/df403ea6841c4a9eb548ea34b216fd57 [2020-11-30 02:01:02,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:01:02,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:01:02,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:02,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:01:02,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:01:02,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbbe311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02, skipping insertion in model container [2020-11-30 02:01:02,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:01:02,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:01:02,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:02,565 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:01:02,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:02,593 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:01:02,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02 WrapperNode [2020-11-30 02:01:02,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:02,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:02,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:01:02,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:01:02,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:02,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:01:02,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:01:02,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:01:02,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... [2020-11-30 02:01:02,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:01:02,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:01:02,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:01:02,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:01:02,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:01:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:01:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:01:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:01:03,192 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:01:03,192 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 02:01:03,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:03 BoogieIcfgContainer [2020-11-30 02:01:03,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:01:03,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:01:03,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:01:03,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:01:03,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:01:02" (1/3) ... [2020-11-30 02:01:03,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:03, skipping insertion in model container [2020-11-30 02:01:03,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:02" (2/3) ... [2020-11-30 02:01:03,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:03, skipping insertion in model container [2020-11-30 02:01:03,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:03" (3/3) ... [2020-11-30 02:01:03,206 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2020-11-30 02:01:03,216 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:01:03,220 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 02:01:03,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 02:01:03,264 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:01:03,265 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:01:03,265 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:01:03,265 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:01:03,265 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:01:03,266 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:01:03,266 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:01:03,266 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:01:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-30 02:01:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 02:01:03,282 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:03,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 02:01:03,283 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:03,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:03,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2271356, now seen corresponding path program 1 times [2020-11-30 02:01:03,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:03,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626428197] [2020-11-30 02:01:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:03,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626428197] [2020-11-30 02:01:03,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:03,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:01:03,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125521305] [2020-11-30 02:01:03,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:03,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:03,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:03,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:03,458 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-11-30 02:01:03,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:03,503 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2020-11-30 02:01:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:03,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 02:01:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:03,511 INFO L225 Difference]: With dead ends: 19 [2020-11-30 02:01:03,511 INFO L226 Difference]: Without dead ends: 14 [2020-11-30 02:01:03,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-30 02:01:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-30 02:01:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 02:01:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-30 02:01:03,543 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2020-11-30 02:01:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:03,543 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 02:01:03,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:03,543 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-30 02:01:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:01:03,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:03,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:01:03,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:01:03,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash 70412086, now seen corresponding path program 1 times [2020-11-30 02:01:03,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:03,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839550516] [2020-11-30 02:01:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:03,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839550516] [2020-11-30 02:01:03,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:03,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:01:03,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886767924] [2020-11-30 02:01:03,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:03,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:03,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:03,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:03,602 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2020-11-30 02:01:03,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:03,615 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-11-30 02:01:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:03,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:01:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:03,616 INFO L225 Difference]: With dead ends: 13 [2020-11-30 02:01:03,617 INFO L226 Difference]: Without dead ends: 12 [2020-11-30 02:01:03,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-30 02:01:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-30 02:01:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 02:01:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-30 02:01:03,637 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2020-11-30 02:01:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:03,638 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-30 02:01:03,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-30 02:01:03,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:01:03,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:03,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:01:03,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:01:03,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:03,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2112192578, now seen corresponding path program 1 times [2020-11-30 02:01:03,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:03,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471768228] [2020-11-30 02:01:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:03,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471768228] [2020-11-30 02:01:03,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:03,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:01:03,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474301977] [2020-11-30 02:01:03,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:01:03,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:03,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:01:03,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:01:03,695 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-11-30 02:01:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:03,753 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-30 02:01:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:01:03,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 02:01:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:03,754 INFO L225 Difference]: With dead ends: 17 [2020-11-30 02:01:03,755 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 02:01:03,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:01:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 02:01:03,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2020-11-30 02:01:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-30 02:01:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-30 02:01:03,760 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2020-11-30 02:01:03,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:03,760 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-11-30 02:01:03,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:01:03,761 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-30 02:01:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:01:03,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:03,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:03,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:01:03,762 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:03,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1053460424, now seen corresponding path program 1 times [2020-11-30 02:01:03,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:03,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821073803] [2020-11-30 02:01:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:03,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821073803] [2020-11-30 02:01:03,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:03,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:01:03,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135479847] [2020-11-30 02:01:03,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:01:03,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:03,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:01:03,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:01:03,856 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2020-11-30 02:01:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:03,898 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-30 02:01:03,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:01:03,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 02:01:03,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:03,900 INFO L225 Difference]: With dead ends: 14 [2020-11-30 02:01:03,900 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 02:01:03,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:01:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 02:01:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 02:01:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 02:01:03,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-30 02:01:03,904 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-30 02:01:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:03,905 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 02:01:03,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:01:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-30 02:01:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:01:03,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:03,906 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:03,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:01:03,907 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:03,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1236815866, now seen corresponding path program 1 times [2020-11-30 02:01:03,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:03,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392908597] [2020-11-30 02:01:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:03,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392908597] [2020-11-30 02:01:03,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173763844] [2020-11-30 02:01:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:04,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:01:04,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:04,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:04,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588613965] [2020-11-30 02:01:04,241 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:04,241 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:04,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:04,255 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:04,255 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:05,084 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:05,286 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:05,418 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:05,835 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:06,223 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:06,656 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:01:06,857 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:06,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:01:06,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2020-11-30 02:01:06,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158814083] [2020-11-30 02:01:06,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:01:06,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:01:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:01:06,859 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-11-30 02:01:06,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:06,915 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-11-30 02:01:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:01:06,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-11-30 02:01:06,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:06,917 INFO L225 Difference]: With dead ends: 29 [2020-11-30 02:01:06,917 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 02:01:06,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:01:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 02:01:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-11-30 02:01:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 02:01:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-11-30 02:01:06,922 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2020-11-30 02:01:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:06,923 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-11-30 02:01:06,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:01:06,923 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-30 02:01:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:01:06,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:06,924 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 02:01:07,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:07,125 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1125892164, now seen corresponding path program 1 times [2020-11-30 02:01:07,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:07,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757288104] [2020-11-30 02:01:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 02:01:07,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757288104] [2020-11-30 02:01:07,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:07,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:01:07,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178841665] [2020-11-30 02:01:07,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:01:07,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:07,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:01:07,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:01:07,177 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 4 states. [2020-11-30 02:01:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:07,219 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-11-30 02:01:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:01:07,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 02:01:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:07,223 INFO L225 Difference]: With dead ends: 26 [2020-11-30 02:01:07,223 INFO L226 Difference]: Without dead ends: 25 [2020-11-30 02:01:07,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:01:07,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-30 02:01:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-30 02:01:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 02:01:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-11-30 02:01:07,228 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2020-11-30 02:01:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:07,229 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-11-30 02:01:07,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:01:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-11-30 02:01:07,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 02:01:07,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:07,232 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1] [2020-11-30 02:01:07,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-30 02:01:07,234 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:07,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash -110545412, now seen corresponding path program 2 times [2020-11-30 02:01:07,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:07,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833409941] [2020-11-30 02:01:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:07,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833409941] [2020-11-30 02:01:07,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733175241] [2020-11-30 02:01:07,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:07,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-11-30 02:01:07,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:01:07,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 02:01:07,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:07,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:07,743 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:07,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1710936812] [2020-11-30 02:01:07,746 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:07,746 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:07,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:07,747 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:07,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:08,257 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:08,486 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:08,666 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:09,194 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:09,656 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:10,142 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:01:10,577 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-30 02:01:10,579 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:10,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:01:10,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2020-11-30 02:01:10,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957337164] [2020-11-30 02:01:10,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 02:01:10,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:10,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 02:01:10,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-30 02:01:10,582 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 12 states. [2020-11-30 02:01:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:10,702 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2020-11-30 02:01:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 02:01:10,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2020-11-30 02:01:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:10,705 INFO L225 Difference]: With dead ends: 56 [2020-11-30 02:01:10,705 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 02:01:10,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-30 02:01:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 02:01:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-30 02:01:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-30 02:01:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-11-30 02:01:10,716 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 24 [2020-11-30 02:01:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:10,717 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-11-30 02:01:10,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 02:01:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-11-30 02:01:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-30 02:01:10,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:10,719 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1] [2020-11-30 02:01:10,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-11-30 02:01:10,934 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:10,935 INFO L82 PathProgramCache]: Analyzing trace with hash 765411900, now seen corresponding path program 3 times [2020-11-30 02:01:10,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:10,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554287710] [2020-11-30 02:01:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:11,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554287710] [2020-11-30 02:01:11,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708631364] [2020-11-30 02:01:11,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:11,264 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 02:01:11,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:01:11,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 02:01:11,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:11,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:11,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2050147116] [2020-11-30 02:01:11,804 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:11,805 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:11,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:11,806 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:11,806 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:12,243 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:12,498 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:12,690 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:13,170 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:13,592 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:14,063 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:01:14,265 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:14,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:01:14,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2020-11-30 02:01:14,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084802961] [2020-11-30 02:01:14,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-30 02:01:14,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:14,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-30 02:01:14,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=633, Unknown=0, NotChecked=0, Total=930 [2020-11-30 02:01:14,268 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 24 states. [2020-11-30 02:01:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:14,464 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2020-11-30 02:01:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-30 02:01:14,465 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 54 [2020-11-30 02:01:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:14,467 INFO L225 Difference]: With dead ends: 116 [2020-11-30 02:01:14,467 INFO L226 Difference]: Without dead ends: 115 [2020-11-30 02:01:14,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=297, Invalid=633, Unknown=0, NotChecked=0, Total=930 [2020-11-30 02:01:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-30 02:01:14,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-30 02:01:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 02:01:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2020-11-30 02:01:14,484 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 54 [2020-11-30 02:01:14,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:14,484 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2020-11-30 02:01:14,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-30 02:01:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2020-11-30 02:01:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-30 02:01:14,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:14,491 INFO L422 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1] [2020-11-30 02:01:14,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:14,714 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash -217150788, now seen corresponding path program 4 times [2020-11-30 02:01:14,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:14,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195156923] [2020-11-30 02:01:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:15,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195156923] [2020-11-30 02:01:15,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889730133] [2020-11-30 02:01:15,527 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:15,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 02:01:15,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:15,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:17,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293899390] [2020-11-30 02:01:17,117 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:17,117 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:17,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:17,118 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:17,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:17,524 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:17,787 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:17,984 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:18,333 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:18,653 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:19,028 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:01:19,198 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:19,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:01:19,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2020-11-30 02:01:19,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806703520] [2020-11-30 02:01:19,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-11-30 02:01:19,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-11-30 02:01:19,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1149, Invalid=1821, Unknown=0, NotChecked=0, Total=2970 [2020-11-30 02:01:19,204 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 48 states. [2020-11-30 02:01:19,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:19,715 INFO L93 Difference]: Finished difference Result 236 states and 259 transitions. [2020-11-30 02:01:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-11-30 02:01:19,716 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 114 [2020-11-30 02:01:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:19,725 INFO L225 Difference]: With dead ends: 236 [2020-11-30 02:01:19,726 INFO L226 Difference]: Without dead ends: 235 [2020-11-30 02:01:19,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1149, Invalid=1821, Unknown=0, NotChecked=0, Total=2970 [2020-11-30 02:01:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-11-30 02:01:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2020-11-30 02:01:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-30 02:01:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2020-11-30 02:01:19,769 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 114 [2020-11-30 02:01:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:19,770 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 235 transitions. [2020-11-30 02:01:19,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-11-30 02:01:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 235 transitions. [2020-11-30 02:01:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-30 02:01:19,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:19,783 INFO L422 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1] [2020-11-30 02:01:20,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:20,010 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1449778108, now seen corresponding path program 5 times [2020-11-30 02:01:20,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:20,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011006867] [2020-11-30 02:01:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:22,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011006867] [2020-11-30 02:01:22,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185407947] [2020-11-30 02:01:22,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:22,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2020-11-30 02:01:22,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:01:22,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 48 conjunts are in the unsatisfiable core [2020-11-30 02:01:22,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:22,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:22,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:27,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2047602667] [2020-11-30 02:01:27,523 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:27,524 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:27,524 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:27,525 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:27,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:27,912 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:28,232 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:28,602 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:29,126 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:29,445 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:29,783 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:01:30,037 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:30,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:01:30,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2020-11-30 02:01:30,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288464799] [2020-11-30 02:01:30,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 96 states [2020-11-30 02:01:30,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:30,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2020-11-30 02:01:30,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4581, Invalid=5925, Unknown=0, NotChecked=0, Total=10506 [2020-11-30 02:01:30,047 INFO L87 Difference]: Start difference. First operand 235 states and 235 transitions. Second operand 96 states. [2020-11-30 02:01:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:30,806 INFO L93 Difference]: Finished difference Result 476 states and 523 transitions. [2020-11-30 02:01:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-11-30 02:01:30,807 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 234 [2020-11-30 02:01:30,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:30,811 INFO L225 Difference]: With dead ends: 476 [2020-11-30 02:01:30,812 INFO L226 Difference]: Without dead ends: 475 [2020-11-30 02:01:30,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=4581, Invalid=5925, Unknown=0, NotChecked=0, Total=10506 [2020-11-30 02:01:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-11-30 02:01:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2020-11-30 02:01:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-11-30 02:01:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2020-11-30 02:01:30,861 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 234 [2020-11-30 02:01:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:30,863 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2020-11-30 02:01:30,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 96 states. [2020-11-30 02:01:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2020-11-30 02:01:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-11-30 02:01:30,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:30,879 INFO L422 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1] [2020-11-30 02:01:31,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:31,098 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:31,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1788050876, now seen corresponding path program 6 times [2020-11-30 02:01:31,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:31,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402953302] [2020-11-30 02:01:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:38,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402953302] [2020-11-30 02:01:38,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910966445] [2020-11-30 02:01:38,248 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:38,471 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 02:01:38,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:01:38,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 96 conjunts are in the unsatisfiable core [2020-11-30 02:01:38,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:39,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:57,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1938052471] [2020-11-30 02:01:57,002 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-30 02:01:57,003 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:57,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:57,003 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:57,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:57,306 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:01:57,743 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-11-30 02:01:58,016 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:01:58,583 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-11-30 02:01:59,116 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-30 02:01:59,732 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-11-30 02:02:00,082 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:02:00,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:02:00,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2020-11-30 02:02:00,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294335900] [2020-11-30 02:02:00,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 192 states [2020-11-30 02:02:00,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:02:00,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2020-11-30 02:02:00,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18357, Invalid=21045, Unknown=0, NotChecked=0, Total=39402 [2020-11-30 02:02:00,109 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand 192 states. [2020-11-30 02:02:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:02:02,772 INFO L93 Difference]: Finished difference Result 956 states and 1051 transitions. [2020-11-30 02:02:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2020-11-30 02:02:02,778 INFO L78 Accepts]: Start accepts. Automaton has 192 states. Word has length 474 [2020-11-30 02:02:02,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:02:02,787 INFO L225 Difference]: With dead ends: 956 [2020-11-30 02:02:02,788 INFO L226 Difference]: Without dead ends: 955 [2020-11-30 02:02:02,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1516 GetRequests, 1319 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1990 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=18357, Invalid=21045, Unknown=0, NotChecked=0, Total=39402 [2020-11-30 02:02:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-11-30 02:02:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2020-11-30 02:02:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-11-30 02:02:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 955 transitions. [2020-11-30 02:02:02,841 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 955 transitions. Word has length 474 [2020-11-30 02:02:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:02:02,843 INFO L481 AbstractCegarLoop]: Abstraction has 955 states and 955 transitions. [2020-11-30 02:02:02,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 192 states. [2020-11-30 02:02:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 955 transitions. [2020-11-30 02:02:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2020-11-30 02:02:02,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:02:02,894 INFO L422 BasicCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1] [2020-11-30 02:02:03,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:03,110 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:02:03,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:02:03,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1531788868, now seen corresponding path program 7 times [2020-11-30 02:02:03,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:02:03,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553350634] [2020-11-30 02:02:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:02:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:02:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:29,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553350634] [2020-11-30 02:02:29,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014746464] [2020-11-30 02:02:29,160 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:02:29,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 202 conjunts are in the unsatisfiable core [2020-11-30 02:02:29,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:03:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2020-11-30 02:03:09,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:03:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2020-11-30 02:03:10,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 02:03:10,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203, 203] imperfect sequences [192] total 394 [2020-11-30 02:03:10,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659126587] [2020-11-30 02:03:10,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 203 states [2020-11-30 02:03:10,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:03:10,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2020-11-30 02:03:10,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28930, Invalid=125912, Unknown=0, NotChecked=0, Total=154842 [2020-11-30 02:03:10,557 INFO L87 Difference]: Start difference. First operand 955 states and 955 transitions. Second operand 203 states. [2020-11-30 02:03:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:03:27,953 INFO L93 Difference]: Finished difference Result 955 states and 955 transitions. [2020-11-30 02:03:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2020-11-30 02:03:27,958 INFO L78 Accepts]: Start accepts. Automaton has 203 states. Word has length 954 [2020-11-30 02:03:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:03:27,959 INFO L225 Difference]: With dead ends: 955 [2020-11-30 02:03:27,959 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:03:27,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2198 GetRequests, 1706 SyntacticMatches, 0 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57891 ImplicationChecksByTransitivity, 78.2s TimeCoverageRelationStatistics Valid=44180, Invalid=199362, Unknown=0, NotChecked=0, Total=243542 [2020-11-30 02:03:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:03:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:03:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:03:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:03:27,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 954 [2020-11-30 02:03:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:03:27,983 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:03:27,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 203 states. [2020-11-30 02:03:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:03:27,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:03:28,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable179 [2020-11-30 02:03:28,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:03:28,308 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2020-11-30 02:03:31,683 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 556 DAG size of output: 460 [2020-11-30 02:03:31,688 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 02:03:31,688 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:03:31,689 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 02:03:31,689 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-11-30 02:03:31,689 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 (+ ULTIMATE.start_main_~j~0 2147483648)))) (or (and (<= 79 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 158) .cse0) (and (<= ULTIMATE.start_main_~j~0 18) .cse0 (<= 9 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 68) .cse0 (<= 34 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 35 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 70)) (and (<= ULTIMATE.start_main_~j~0 144) .cse0 (<= 72 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 176) (<= 88 ULTIMATE.start_main_~i~0)) (and (<= 0 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 0)) (and (<= 45 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 90)) (and .cse0 (<= 96 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 2147483459)) (and .cse0 (<= ULTIMATE.start_main_~j~0 134) (<= 67 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 89 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 178)) (and .cse0 (<= ULTIMATE.start_main_~j~0 116) (<= 58 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 2147483461) (<= 97 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 52) (<= 26 ULTIMATE.start_main_~i~0)) (and (<= 59 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 118)) (and (<= ULTIMATE.start_main_~j~0 2147483463) .cse0 (<= 98 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 10) (<= 5 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 99 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 2147483465)) (and (<= 18 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 36)) (and (<= 14 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 28)) (and (<= 49 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 98)) (and .cse0 (<= ULTIMATE.start_main_~j~0 160) (<= 80 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 128) .cse0 (<= 64 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 33 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 66)) (and .cse0 (<= ULTIMATE.start_main_~j~0 180) (<= 90 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 16 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 32)) (and .cse0 (<= ULTIMATE.start_main_~j~0 62) (<= 31 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 40 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 80)) (and .cse0 (<= 20 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 40)) (and .cse0 (<= 28 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 56)) (and (<= 13 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 26)) (and .cse0 (<= ULTIMATE.start_main_~j~0 94) (<= 47 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 22) .cse0 (<= 11 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 62 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 124)) (and (<= 66 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 132)) (and (<= 46 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 92)) (and .cse0 (<= 81 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 162)) (and .cse0 (<= ULTIMATE.start_main_~j~0 76) (<= 38 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 102) (<= 51 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 166) (<= 83 ULTIMATE.start_main_~i~0)) (and (<= 12 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 24)) (and .cse0 (<= ULTIMATE.start_main_~j~0 78) (<= 39 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 85 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 170)) (and .cse0 (<= ULTIMATE.start_main_~j~0 122) (<= 61 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 188) .cse0 (<= 94 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 30) .cse0 (<= 15 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 100) .cse0 (<= 50 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 91 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 182)) (and (<= ULTIMATE.start_main_~j~0 60) .cse0 (<= 30 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 8) .cse0 (<= 4 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 56 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 112)) (and .cse0 (<= 77 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 154)) (and (<= ULTIMATE.start_main_~j~0 174) .cse0 (<= 87 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 2147483467) (<= 100 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 48) (<= 24 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 12) .cse0 (<= 6 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 43 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 86)) (and (<= 23 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 46) .cse0) (and .cse0 (<= ULTIMATE.start_main_~j~0 82) (<= 41 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 16) (<= 8 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 42 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 84)) (and .cse0 (<= 37 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 74)) (and .cse0 (<= 63 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 126)) (and (<= ULTIMATE.start_main_~j~0 2) .cse0 (<= 1 ULTIMATE.start_main_~i~0)) (and (<= 32 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 64)) (and .cse0 (<= 52 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 104)) (and (<= ULTIMATE.start_main_~j~0 120) .cse0 (<= 60 ULTIMATE.start_main_~i~0)) (and (<= 69 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 138)) (and (<= ULTIMATE.start_main_~j~0 54) .cse0 (<= 27 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 172) (<= 86 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 34) .cse0 (<= 17 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 152) .cse0 (<= 76 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 58) .cse0 (<= 29 ULTIMATE.start_main_~i~0)) (and (<= 54 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 108)) (and (<= 44 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 88)) (and (<= ULTIMATE.start_main_~j~0 4) .cse0 (<= 2 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 96) .cse0 (<= 48 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 53 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 106)) (and .cse0 (<= ULTIMATE.start_main_~j~0 146) (<= 73 ULTIMATE.start_main_~i~0)) (and (<= 84 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 168)) (and .cse0 (<= 93 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 186)) (and .cse0 (<= 25 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 50)) (and .cse0 (<= 82 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 164)) (and .cse0 (<= ULTIMATE.start_main_~j~0 150) (<= 75 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 156) (<= 78 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 38) (<= 19 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 130) (<= 65 ULTIMATE.start_main_~i~0) .cse0) (and (<= 68 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 136)) (and (<= 21 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 42)) (and (<= ULTIMATE.start_main_~j~0 142) .cse0 (<= 71 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 2147483457) .cse0 (<= 95 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 110) (<= 55 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 10 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 20)) (and (<= ULTIMATE.start_main_~j~0 72) .cse0 (<= 36 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 57 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 114)) (and (<= ULTIMATE.start_main_~j~0 148) .cse0 (<= 74 ULTIMATE.start_main_~i~0)) (and .cse0 (<= ULTIMATE.start_main_~j~0 14) (<= 7 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 44) .cse0 (<= 22 ULTIMATE.start_main_~i~0)) (and .cse0 (<= 3 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 6)) (and .cse0 (<= 70 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 140)) (and .cse0 (<= ULTIMATE.start_main_~j~0 184) (<= 92 ULTIMATE.start_main_~i~0)))) [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L277 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-30 02:03:31,691 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-30 02:03:31,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:03:31 BoogieIcfgContainer [2020-11-30 02:03:31,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:03:31,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:03:31,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:03:31,758 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:03:31,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:03" (3/4) ... [2020-11-30 02:03:31,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:03:31,768 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 02:03:31,768 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 02:03:31,768 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:03:31,768 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:03:31,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_581f84de-d8ea-4c63-90f8-a7d65050085b/bin/utaipan/witness.graphml [2020-11-30 02:03:31,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:03:31,813 INFO L168 Benchmark]: Toolchain (without parser) took 149450.93 ms. Allocated memory was 98.6 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 63.1 MB in the beginning and 664.8 MB in the end (delta: -601.6 MB). Peak memory consumption was 489.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,813 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 71.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:03:31,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.16 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 74.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,815 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.2 MB in the end (delta: 837.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:03:31,815 INFO L168 Benchmark]: RCFGBuilder took 546.51 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 56.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,816 INFO L168 Benchmark]: TraceAbstraction took 148561.28 ms. Allocated memory was 98.6 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 55.9 MB in the beginning and 667.9 MB in the end (delta: -612.0 MB). Peak memory consumption was 611.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,816 INFO L168 Benchmark]: Witness Printer took 54.53 ms. Allocated memory is still 1.2 GB. Free memory was 667.9 MB in the beginning and 664.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:03:31,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 71.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.16 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 74.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.2 MB in the end (delta: 837.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 546.51 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 56.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 148561.28 ms. Allocated memory was 98.6 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 55.9 MB in the beginning and 667.9 MB in the end (delta: -612.0 MB). Peak memory consumption was 611.4 MB. Max. memory is 16.1 GB. * Witness Printer took 54.53 ms. Allocated memory is still 1.2 GB. Free memory was 667.9 MB in the beginning and 664.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((79 <= i && j <= 158) && 0 <= j + 2147483648) || ((j <= 18 && 0 <= j + 2147483648) && 9 <= i)) || ((j <= 68 && 0 <= j + 2147483648) && 34 <= i)) || ((0 <= j + 2147483648 && 35 <= i) && j <= 70)) || ((j <= 144 && 0 <= j + 2147483648) && 72 <= i)) || ((0 <= j + 2147483648 && j <= 176) && 88 <= i)) || ((0 <= i && 0 <= j + 2147483648) && j <= 0)) || ((45 <= i && 0 <= j + 2147483648) && j <= 90)) || ((0 <= j + 2147483648 && 96 <= i) && j <= 2147483459)) || ((0 <= j + 2147483648 && j <= 134) && 67 <= i)) || ((0 <= j + 2147483648 && 89 <= i) && j <= 178)) || ((0 <= j + 2147483648 && j <= 116) && 58 <= i)) || ((0 <= j + 2147483648 && j <= 2147483461) && 97 <= i)) || ((0 <= j + 2147483648 && j <= 52) && 26 <= i)) || ((59 <= i && 0 <= j + 2147483648) && j <= 118)) || ((j <= 2147483463 && 0 <= j + 2147483648) && 98 <= i)) || ((0 <= j + 2147483648 && j <= 10) && 5 <= i)) || ((0 <= j + 2147483648 && 99 <= i) && j <= 2147483465)) || ((18 <= i && 0 <= j + 2147483648) && j <= 36)) || ((14 <= i && 0 <= j + 2147483648) && j <= 28)) || ((49 <= i && 0 <= j + 2147483648) && j <= 98)) || ((0 <= j + 2147483648 && j <= 160) && 80 <= i)) || ((j <= 128 && 0 <= j + 2147483648) && 64 <= i)) || ((0 <= j + 2147483648 && 33 <= i) && j <= 66)) || ((0 <= j + 2147483648 && j <= 180) && 90 <= i)) || ((0 <= j + 2147483648 && 16 <= i) && j <= 32)) || ((0 <= j + 2147483648 && j <= 62) && 31 <= i)) || ((0 <= j + 2147483648 && 40 <= i) && j <= 80)) || ((0 <= j + 2147483648 && 20 <= i) && j <= 40)) || ((0 <= j + 2147483648 && 28 <= i) && j <= 56)) || ((13 <= i && 0 <= j + 2147483648) && j <= 26)) || ((0 <= j + 2147483648 && j <= 94) && 47 <= i)) || ((j <= 22 && 0 <= j + 2147483648) && 11 <= i)) || ((0 <= j + 2147483648 && 62 <= i) && j <= 124)) || ((66 <= i && 0 <= j + 2147483648) && j <= 132)) || ((46 <= i && 0 <= j + 2147483648) && j <= 92)) || ((0 <= j + 2147483648 && 81 <= i) && j <= 162)) || ((0 <= j + 2147483648 && j <= 76) && 38 <= i)) || ((0 <= j + 2147483648 && j <= 102) && 51 <= i)) || ((0 <= j + 2147483648 && j <= 166) && 83 <= i)) || ((12 <= i && 0 <= j + 2147483648) && j <= 24)) || ((0 <= j + 2147483648 && j <= 78) && 39 <= i)) || ((0 <= j + 2147483648 && 85 <= i) && j <= 170)) || ((0 <= j + 2147483648 && j <= 122) && 61 <= i)) || ((j <= 188 && 0 <= j + 2147483648) && 94 <= i)) || ((j <= 30 && 0 <= j + 2147483648) && 15 <= i)) || ((j <= 100 && 0 <= j + 2147483648) && 50 <= i)) || ((0 <= j + 2147483648 && 91 <= i) && j <= 182)) || ((j <= 60 && 0 <= j + 2147483648) && 30 <= i)) || ((j <= 8 && 0 <= j + 2147483648) && 4 <= i)) || ((0 <= j + 2147483648 && 56 <= i) && j <= 112)) || ((0 <= j + 2147483648 && 77 <= i) && j <= 154)) || ((j <= 174 && 0 <= j + 2147483648) && 87 <= i)) || ((0 <= j + 2147483648 && j <= 2147483467) && 100 <= i)) || ((0 <= j + 2147483648 && j <= 48) && 24 <= i)) || ((j <= 12 && 0 <= j + 2147483648) && 6 <= i)) || ((0 <= j + 2147483648 && 43 <= i) && j <= 86)) || ((23 <= i && j <= 46) && 0 <= j + 2147483648)) || ((0 <= j + 2147483648 && j <= 82) && 41 <= i)) || ((0 <= j + 2147483648 && j <= 16) && 8 <= i)) || ((0 <= j + 2147483648 && 42 <= i) && j <= 84)) || ((0 <= j + 2147483648 && 37 <= i) && j <= 74)) || ((0 <= j + 2147483648 && 63 <= i) && j <= 126)) || ((j <= 2 && 0 <= j + 2147483648) && 1 <= i)) || ((32 <= i && 0 <= j + 2147483648) && j <= 64)) || ((0 <= j + 2147483648 && 52 <= i) && j <= 104)) || ((j <= 120 && 0 <= j + 2147483648) && 60 <= i)) || ((69 <= i && 0 <= j + 2147483648) && j <= 138)) || ((j <= 54 && 0 <= j + 2147483648) && 27 <= i)) || ((0 <= j + 2147483648 && j <= 172) && 86 <= i)) || ((j <= 34 && 0 <= j + 2147483648) && 17 <= i)) || ((j <= 152 && 0 <= j + 2147483648) && 76 <= i)) || ((j <= 58 && 0 <= j + 2147483648) && 29 <= i)) || ((54 <= i && 0 <= j + 2147483648) && j <= 108)) || ((44 <= i && 0 <= j + 2147483648) && j <= 88)) || ((j <= 4 && 0 <= j + 2147483648) && 2 <= i)) || ((j <= 96 && 0 <= j + 2147483648) && 48 <= i)) || ((0 <= j + 2147483648 && 53 <= i) && j <= 106)) || ((0 <= j + 2147483648 && j <= 146) && 73 <= i)) || ((84 <= i && 0 <= j + 2147483648) && j <= 168)) || ((0 <= j + 2147483648 && 93 <= i) && j <= 186)) || ((0 <= j + 2147483648 && 25 <= i) && j <= 50)) || ((0 <= j + 2147483648 && 82 <= i) && j <= 164)) || ((0 <= j + 2147483648 && j <= 150) && 75 <= i)) || ((0 <= j + 2147483648 && j <= 156) && 78 <= i)) || ((0 <= j + 2147483648 && j <= 38) && 19 <= i)) || ((j <= 130 && 65 <= i) && 0 <= j + 2147483648)) || ((68 <= i && 0 <= j + 2147483648) && j <= 136)) || ((21 <= i && 0 <= j + 2147483648) && j <= 42)) || ((j <= 142 && 0 <= j + 2147483648) && 71 <= i)) || ((j <= 2147483457 && 0 <= j + 2147483648) && 95 <= i)) || ((0 <= j + 2147483648 && j <= 110) && 55 <= i)) || ((0 <= j + 2147483648 && 10 <= i) && j <= 20)) || ((j <= 72 && 0 <= j + 2147483648) && 36 <= i)) || ((0 <= j + 2147483648 && 57 <= i) && j <= 114)) || ((j <= 148 && 0 <= j + 2147483648) && 74 <= i)) || ((0 <= j + 2147483648 && j <= 14) && 7 <= i)) || ((j <= 44 && 0 <= j + 2147483648) && 22 <= i)) || ((0 <= j + 2147483648 && 3 <= i) && j <= 6)) || ((0 <= j + 2147483648 && 70 <= i) && j <= 140)) || ((0 <= j + 2147483648 && j <= 184) && 92 <= i) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 144.9s, OverallIterations: 12, TraceHistogramMax: 191, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 169 SDtfs, 1057 SDslu, 1604 SDs, 0 SdLazy, 3227 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5117 GetRequests, 4206 SyntacticMatches, 0 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61704 ImplicationChecksByTransitivity, 124.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1214 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 570 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 101.2s InterpolantComputationTime, 3759 NumberOfCodeBlocks, 3759 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 5596 ConstructedInterpolants, 0 QuantifiedInterpolants, 9091656 SizeOfPredicates, 107 NumberOfNonLiveVariables, 4282 ConjunctsInSsa, 391 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 180314/356851 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...