./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/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 64bit --witnessprinter.graph.data.programhash 4f493a0ec5685991b86ced08697f863f174636a1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:18:37,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:18:37,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:18:37,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:18:37,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:18:37,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:18:37,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:18:37,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:18:37,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:18:37,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:18:37,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:18:37,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:18:37,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:18:37,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:18:37,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:18:37,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:18:37,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:18:37,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:18:37,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:18:37,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:18:37,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:18:37,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:18:37,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:18:37,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:18:37,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:18:37,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:18:37,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:18:37,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:18:37,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:18:37,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:18:37,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:18:37,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:18:37,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:18:37,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:18:37,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:18:37,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:18:37,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:18:37,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:18:37,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:18:37,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:18:37,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:18:37,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 09:18:37,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:18:37,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:18:37,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:18:37,955 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:18:37,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:18:37,955 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:18:37,955 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:18:37,955 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:18:37,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:18:37,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:18:37,956 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:18:37,956 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:18:37,956 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:18:37,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:18:37,961 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:18:37,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:18:37,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 09:18:37,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:18:37,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:18:37,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:18:37,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:18:37,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:18:37,963 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 09:18:37,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:18:37,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:18:37,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:18:37,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:18:37,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:18:37,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:18:37,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:18:37,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:18:37,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:18:37,965 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:18:37,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:18:37,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:18:37,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:18:37,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:18:37,965 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_021d8708-0826-4889-a9c8-9731cf441afe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f493a0ec5685991b86ced08697f863f174636a1 [2020-12-09 09:18:38,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:18:38,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:18:38,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:18:38,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:18:38,171 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:18:38,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2020-12-09 09:18:38,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/data/2724dcd6d/35c632adbc754a43808168f103a8626f/FLAG8c1a83a28 [2020-12-09 09:18:38,591 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:18:38,591 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2020-12-09 09:18:38,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/data/2724dcd6d/35c632adbc754a43808168f103a8626f/FLAG8c1a83a28 [2020-12-09 09:18:38,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/data/2724dcd6d/35c632adbc754a43808168f103a8626f [2020-12-09 09:18:38,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:18:38,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:18:38,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:18:38,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:18:38,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:18:38,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc6f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38, skipping insertion in model container [2020-12-09 09:18:38,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:18:38,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:18:38,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:18:38,745 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:18:38,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:18:38,770 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:18:38,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38 WrapperNode [2020-12-09 09:18:38,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:18:38,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:18:38,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:18:38,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:18:38,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:18:38,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:18:38,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:18:38,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:18:38,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... [2020-12-09 09:18:38,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:18:38,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:18:38,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:18:38,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:18:38,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:18:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:18:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:18:39,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:18:39,187 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 09:18:39,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:18:39 BoogieIcfgContainer [2020-12-09 09:18:39,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:18:39,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:18:39,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:18:39,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:18:39,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:18:38" (1/3) ... [2020-12-09 09:18:39,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222f692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:18:39, skipping insertion in model container [2020-12-09 09:18:39,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:18:38" (2/3) ... [2020-12-09 09:18:39,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222f692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:18:39, skipping insertion in model container [2020-12-09 09:18:39,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:18:39" (3/3) ... [2020-12-09 09:18:39,195 INFO L111 eAbstractionObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-1.c [2020-12-09 09:18:39,205 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:18:39,209 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-12-09 09:18:39,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-12-09 09:18:39,238 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:18:39,238 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:18:39,239 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:18:39,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:18:39,239 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:18:39,239 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:18:39,239 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:18:39,239 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:18:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-12-09 09:18:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 09:18:39,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:39,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 09:18:39,263 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:39,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:39,267 INFO L82 PathProgramCache]: Analyzing trace with hash 172532, now seen corresponding path program 1 times [2020-12-09 09:18:39,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:39,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742482618] [2020-12-09 09:18:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:39,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742482618] [2020-12-09 09:18:39,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:39,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:18:39,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867312951] [2020-12-09 09:18:39,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:18:39,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:39,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:18:39,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:18:39,396 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2020-12-09 09:18:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:39,543 INFO L93 Difference]: Finished difference Result 162 states and 189 transitions. [2020-12-09 09:18:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:18:39,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 09:18:39,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:39,550 INFO L225 Difference]: With dead ends: 162 [2020-12-09 09:18:39,551 INFO L226 Difference]: Without dead ends: 90 [2020-12-09 09:18:39,553 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 [2020-12-09 09:18:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-09 09:18:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2020-12-09 09:18:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-09 09:18:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-12-09 09:18:39,579 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 3 [2020-12-09 09:18:39,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:39,580 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-12-09 09:18:39,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:18:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-12-09 09:18:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 09:18:39,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:39,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 09:18:39,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:18:39,581 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:39,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:39,582 INFO L82 PathProgramCache]: Analyzing trace with hash 172340, now seen corresponding path program 1 times [2020-12-09 09:18:39,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:39,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393053126] [2020-12-09 09:18:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:39,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393053126] [2020-12-09 09:18:39,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:39,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 09:18:39,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784016290] [2020-12-09 09:18:39,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:18:39,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:39,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:18:39,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:18:39,609 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 3 states. [2020-12-09 09:18:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:39,696 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2020-12-09 09:18:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:18:39,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 09:18:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:39,697 INFO L225 Difference]: With dead ends: 90 [2020-12-09 09:18:39,697 INFO L226 Difference]: Without dead ends: 89 [2020-12-09 09:18:39,698 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 [2020-12-09 09:18:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-09 09:18:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2020-12-09 09:18:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-09 09:18:39,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-12-09 09:18:39,704 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 3 [2020-12-09 09:18:39,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:39,704 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-12-09 09:18:39,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:18:39,704 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-12-09 09:18:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 09:18:39,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:39,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 09:18:39,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 09:18:39,705 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:39,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:39,705 INFO L82 PathProgramCache]: Analyzing trace with hash 5348542, now seen corresponding path program 1 times [2020-12-09 09:18:39,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:39,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998569652] [2020-12-09 09:18:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:39,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998569652] [2020-12-09 09:18:39,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:39,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 09:18:39,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224319408] [2020-12-09 09:18:39,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:18:39,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:39,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:18:39,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:18:39,725 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 3 states. [2020-12-09 09:18:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:39,823 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-12-09 09:18:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:18:39,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 09:18:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:39,824 INFO L225 Difference]: With dead ends: 110 [2020-12-09 09:18:39,825 INFO L226 Difference]: Without dead ends: 94 [2020-12-09 09:18:39,825 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 [2020-12-09 09:18:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-09 09:18:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 85. [2020-12-09 09:18:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-09 09:18:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2020-12-09 09:18:39,830 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 4 [2020-12-09 09:18:39,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:39,830 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2020-12-09 09:18:39,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:18:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2020-12-09 09:18:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 09:18:39,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:39,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 09:18:39,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 09:18:39,831 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:39,831 INFO L82 PathProgramCache]: Analyzing trace with hash 839257658, now seen corresponding path program 1 times [2020-12-09 09:18:39,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:39,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123550717] [2020-12-09 09:18:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:39,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123550717] [2020-12-09 09:18:39,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:39,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:18:39,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216762584] [2020-12-09 09:18:39,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:18:39,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:39,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:18:39,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:39,854 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand 4 states. [2020-12-09 09:18:39,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:39,941 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2020-12-09 09:18:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:18:39,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 09:18:39,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:39,942 INFO L225 Difference]: With dead ends: 94 [2020-12-09 09:18:39,942 INFO L226 Difference]: Without dead ends: 93 [2020-12-09 09:18:39,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-09 09:18:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2020-12-09 09:18:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-09 09:18:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-12-09 09:18:39,949 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 6 [2020-12-09 09:18:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:39,949 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-12-09 09:18:39,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:18:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-12-09 09:18:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 09:18:39,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:39,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:39,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 09:18:39,950 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash 424684416, now seen corresponding path program 1 times [2020-12-09 09:18:39,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:39,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525311784] [2020-12-09 09:18:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:39,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525311784] [2020-12-09 09:18:39,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:39,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:18:39,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61884004] [2020-12-09 09:18:39,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:18:39,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:39,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:18:39,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:39,974 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 4 states. [2020-12-09 09:18:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,094 INFO L93 Difference]: Finished difference Result 126 states and 134 transitions. [2020-12-09 09:18:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:18:40,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-09 09:18:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,096 INFO L225 Difference]: With dead ends: 126 [2020-12-09 09:18:40,096 INFO L226 Difference]: Without dead ends: 119 [2020-12-09 09:18:40,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-09 09:18:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 99. [2020-12-09 09:18:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-09 09:18:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2020-12-09 09:18:40,105 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 7 [2020-12-09 09:18:40,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,105 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2020-12-09 09:18:40,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:18:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2020-12-09 09:18:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 09:18:40,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 09:18:40,107 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1320317378, now seen corresponding path program 1 times [2020-12-09 09:18:40,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3039107] [2020-12-09 09:18:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3039107] [2020-12-09 09:18:40,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:18:40,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227393076] [2020-12-09 09:18:40,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:18:40,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:18:40,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:18:40,141 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand 5 states. [2020-12-09 09:18:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,219 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2020-12-09 09:18:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:18:40,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 09:18:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,220 INFO L225 Difference]: With dead ends: 108 [2020-12-09 09:18:40,220 INFO L226 Difference]: Without dead ends: 107 [2020-12-09 09:18:40,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:18:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-09 09:18:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2020-12-09 09:18:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-09 09:18:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2020-12-09 09:18:40,225 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 9 [2020-12-09 09:18:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,225 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2020-12-09 09:18:40,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:18:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2020-12-09 09:18:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 09:18:40,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 09:18:40,226 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1200143412, now seen corresponding path program 1 times [2020-12-09 09:18:40,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754051618] [2020-12-09 09:18:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754051618] [2020-12-09 09:18:40,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:18:40,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636099546] [2020-12-09 09:18:40,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:18:40,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:18:40,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:18:40,248 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 5 states. [2020-12-09 09:18:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,383 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2020-12-09 09:18:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:18:40,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 09:18:40,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,384 INFO L225 Difference]: With dead ends: 147 [2020-12-09 09:18:40,384 INFO L226 Difference]: Without dead ends: 141 [2020-12-09 09:18:40,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:18:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-12-09 09:18:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 107. [2020-12-09 09:18:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-09 09:18:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2020-12-09 09:18:40,389 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 10 [2020-12-09 09:18:40,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,389 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2020-12-09 09:18:40,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:18:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2020-12-09 09:18:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 09:18:40,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 09:18:40,390 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,390 INFO L82 PathProgramCache]: Analyzing trace with hash 264583048, now seen corresponding path program 1 times [2020-12-09 09:18:40,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91754429] [2020-12-09 09:18:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91754429] [2020-12-09 09:18:40,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:18:40,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335697000] [2020-12-09 09:18:40,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:18:40,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:18:40,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:18:40,418 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand 6 states. [2020-12-09 09:18:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,499 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2020-12-09 09:18:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:18:40,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-09 09:18:40,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,501 INFO L225 Difference]: With dead ends: 116 [2020-12-09 09:18:40,501 INFO L226 Difference]: Without dead ends: 115 [2020-12-09 09:18:40,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:18:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-09 09:18:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 106. [2020-12-09 09:18:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-09 09:18:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2020-12-09 09:18:40,505 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 12 [2020-12-09 09:18:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,505 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2020-12-09 09:18:40,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:18:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2020-12-09 09:18:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 09:18:40,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 09:18:40,506 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash 2130439758, now seen corresponding path program 1 times [2020-12-09 09:18:40,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877110736] [2020-12-09 09:18:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877110736] [2020-12-09 09:18:40,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:18:40,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718754784] [2020-12-09 09:18:40,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:18:40,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:18:40,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:18:40,536 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand 6 states. [2020-12-09 09:18:40,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,701 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2020-12-09 09:18:40,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:18:40,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-09 09:18:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,702 INFO L225 Difference]: With dead ends: 165 [2020-12-09 09:18:40,703 INFO L226 Difference]: Without dead ends: 160 [2020-12-09 09:18:40,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:18:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-09 09:18:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 109. [2020-12-09 09:18:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-09 09:18:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2020-12-09 09:18:40,707 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 13 [2020-12-09 09:18:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,707 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2020-12-09 09:18:40,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:18:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2020-12-09 09:18:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 09:18:40,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 09:18:40,709 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,709 INFO L82 PathProgramCache]: Analyzing trace with hash 928680528, now seen corresponding path program 1 times [2020-12-09 09:18:40,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661251185] [2020-12-09 09:18:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661251185] [2020-12-09 09:18:40,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:18:40,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020921959] [2020-12-09 09:18:40,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:18:40,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:18:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:18:40,745 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 7 states. [2020-12-09 09:18:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:40,838 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2020-12-09 09:18:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:18:40,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-09 09:18:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:40,839 INFO L225 Difference]: With dead ends: 118 [2020-12-09 09:18:40,839 INFO L226 Difference]: Without dead ends: 117 [2020-12-09 09:18:40,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:18:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-09 09:18:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2020-12-09 09:18:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-09 09:18:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2020-12-09 09:18:40,842 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 15 [2020-12-09 09:18:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:40,842 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2020-12-09 09:18:40,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:18:40,842 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2020-12-09 09:18:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 09:18:40,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:40,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:40,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 09:18:40,843 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:40,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1199198938, now seen corresponding path program 1 times [2020-12-09 09:18:40,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:40,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161094288] [2020-12-09 09:18:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:40,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161094288] [2020-12-09 09:18:40,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:40,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:18:40,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972572672] [2020-12-09 09:18:40,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:18:40,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:40,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:18:40,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:18:40,875 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand 7 states. [2020-12-09 09:18:41,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,057 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2020-12-09 09:18:41,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:18:41,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-09 09:18:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,058 INFO L225 Difference]: With dead ends: 180 [2020-12-09 09:18:41,058 INFO L226 Difference]: Without dead ends: 176 [2020-12-09 09:18:41,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:18:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-09 09:18:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 105. [2020-12-09 09:18:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-09 09:18:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-12-09 09:18:41,063 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 16 [2020-12-09 09:18:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,063 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-12-09 09:18:41,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:18:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-12-09 09:18:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 09:18:41,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 09:18:41,064 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1857611562, now seen corresponding path program 1 times [2020-12-09 09:18:41,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360430124] [2020-12-09 09:18:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:41,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360430124] [2020-12-09 09:18:41,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:41,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:18:41,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672738700] [2020-12-09 09:18:41,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 09:18:41,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:41,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 09:18:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 09:18:41,113 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 8 states. [2020-12-09 09:18:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,218 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2020-12-09 09:18:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:18:41,218 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-12-09 09:18:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,219 INFO L225 Difference]: With dead ends: 114 [2020-12-09 09:18:41,219 INFO L226 Difference]: Without dead ends: 113 [2020-12-09 09:18:41,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 09:18:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-09 09:18:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2020-12-09 09:18:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-09 09:18:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-12-09 09:18:41,221 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 18 [2020-12-09 09:18:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,221 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-12-09 09:18:41,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 09:18:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-12-09 09:18:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 09:18:41,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-09 09:18:41,225 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,226 INFO L82 PathProgramCache]: Analyzing trace with hash -202290916, now seen corresponding path program 1 times [2020-12-09 09:18:41,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043572070] [2020-12-09 09:18:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:41,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043572070] [2020-12-09 09:18:41,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:41,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:18:41,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41736315] [2020-12-09 09:18:41,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 09:18:41,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:41,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 09:18:41,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 09:18:41,267 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 8 states. [2020-12-09 09:18:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,453 INFO L93 Difference]: Finished difference Result 192 states and 200 transitions. [2020-12-09 09:18:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 09:18:41,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-12-09 09:18:41,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,455 INFO L225 Difference]: With dead ends: 192 [2020-12-09 09:18:41,455 INFO L226 Difference]: Without dead ends: 189 [2020-12-09 09:18:41,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 09:18:41,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-12-09 09:18:41,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 95. [2020-12-09 09:18:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-09 09:18:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2020-12-09 09:18:41,457 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 19 [2020-12-09 09:18:41,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,458 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2020-12-09 09:18:41,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 09:18:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2020-12-09 09:18:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 09:18:41,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 09:18:41,459 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,459 INFO L82 PathProgramCache]: Analyzing trace with hash 547678942, now seen corresponding path program 1 times [2020-12-09 09:18:41,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195535402] [2020-12-09 09:18:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:41,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195535402] [2020-12-09 09:18:41,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:41,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 09:18:41,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788284799] [2020-12-09 09:18:41,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 09:18:41,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:41,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 09:18:41,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:18:41,505 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand 9 states. [2020-12-09 09:18:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,592 INFO L93 Difference]: Finished difference Result 104 states and 112 transitions. [2020-12-09 09:18:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 09:18:41,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-09 09:18:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,593 INFO L225 Difference]: With dead ends: 104 [2020-12-09 09:18:41,593 INFO L226 Difference]: Without dead ends: 103 [2020-12-09 09:18:41,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:18:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-09 09:18:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2020-12-09 09:18:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-09 09:18:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2020-12-09 09:18:41,595 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 21 [2020-12-09 09:18:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,595 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2020-12-09 09:18:41,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 09:18:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2020-12-09 09:18:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 09:18:41,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 09:18:41,596 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,597 INFO L82 PathProgramCache]: Analyzing trace with hash -609433112, now seen corresponding path program 1 times [2020-12-09 09:18:41,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188753312] [2020-12-09 09:18:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:41,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188753312] [2020-12-09 09:18:41,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:41,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 09:18:41,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423140817] [2020-12-09 09:18:41,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 09:18:41,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 09:18:41,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:18:41,640 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand 9 states. [2020-12-09 09:18:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,823 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2020-12-09 09:18:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 09:18:41,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-09 09:18:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,825 INFO L225 Difference]: With dead ends: 201 [2020-12-09 09:18:41,825 INFO L226 Difference]: Without dead ends: 199 [2020-12-09 09:18:41,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:18:41,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-12-09 09:18:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 79. [2020-12-09 09:18:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-09 09:18:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-12-09 09:18:41,828 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 22 [2020-12-09 09:18:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,829 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-12-09 09:18:41,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 09:18:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-12-09 09:18:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 09:18:41,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-09 09:18:41,830 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash -677268956, now seen corresponding path program 1 times [2020-12-09 09:18:41,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744136395] [2020-12-09 09:18:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:41,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744136395] [2020-12-09 09:18:41,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:41,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 09:18:41,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842277747] [2020-12-09 09:18:41,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 09:18:41,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:41,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 09:18:41,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:18:41,883 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 10 states. [2020-12-09 09:18:41,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:41,972 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-12-09 09:18:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 09:18:41,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-12-09 09:18:41,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:41,973 INFO L225 Difference]: With dead ends: 88 [2020-12-09 09:18:41,973 INFO L226 Difference]: Without dead ends: 87 [2020-12-09 09:18:41,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:18:41,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-09 09:18:41,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 78. [2020-12-09 09:18:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-09 09:18:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-12-09 09:18:41,976 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 24 [2020-12-09 09:18:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:41,976 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-12-09 09:18:41,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 09:18:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-12-09 09:18:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 09:18:41,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:41,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:41,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-09 09:18:41,978 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:41,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:41,978 INFO L82 PathProgramCache]: Analyzing trace with hash -794936342, now seen corresponding path program 1 times [2020-12-09 09:18:41,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:41,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847786801] [2020-12-09 09:18:41,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:42,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847786801] [2020-12-09 09:18:42,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:42,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 09:18:42,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203671879] [2020-12-09 09:18:42,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 09:18:42,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:42,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 09:18:42,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:18:42,033 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 10 states. [2020-12-09 09:18:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:42,230 INFO L93 Difference]: Finished difference Result 207 states and 215 transitions. [2020-12-09 09:18:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 09:18:42,230 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-12-09 09:18:42,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:42,231 INFO L225 Difference]: With dead ends: 207 [2020-12-09 09:18:42,231 INFO L226 Difference]: Without dead ends: 206 [2020-12-09 09:18:42,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:18:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-09 09:18:42,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 57. [2020-12-09 09:18:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 09:18:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2020-12-09 09:18:42,234 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 25 [2020-12-09 09:18:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:42,234 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2020-12-09 09:18:42,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 09:18:42,234 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2020-12-09 09:18:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 09:18:42,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:42,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:42,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-09 09:18:42,235 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash 570359052, now seen corresponding path program 1 times [2020-12-09 09:18:42,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:42,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589748044] [2020-12-09 09:18:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:42,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589748044] [2020-12-09 09:18:42,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:42,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 09:18:42,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880065800] [2020-12-09 09:18:42,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 09:18:42,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:42,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 09:18:42,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-12-09 09:18:42,288 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 11 states. [2020-12-09 09:18:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:42,480 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-12-09 09:18:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-09 09:18:42,480 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-12-09 09:18:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:42,481 INFO L225 Difference]: With dead ends: 198 [2020-12-09 09:18:42,481 INFO L226 Difference]: Without dead ends: 197 [2020-12-09 09:18:42,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-12-09 09:18:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-09 09:18:42,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 79. [2020-12-09 09:18:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-09 09:18:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2020-12-09 09:18:42,484 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 27 [2020-12-09 09:18:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:42,485 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2020-12-09 09:18:42,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 09:18:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2020-12-09 09:18:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 09:18:42,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:42,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:42,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-09 09:18:42,486 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 16545356, now seen corresponding path program 1 times [2020-12-09 09:18:42,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:42,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404782880] [2020-12-09 09:18:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:42,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404782880] [2020-12-09 09:18:42,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:42,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:18:42,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795692880] [2020-12-09 09:18:42,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:18:42,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:18:42,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:42,505 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 4 states. [2020-12-09 09:18:42,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:42,559 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2020-12-09 09:18:42,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:18:42,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-12-09 09:18:42,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:42,560 INFO L225 Difference]: With dead ends: 116 [2020-12-09 09:18:42,560 INFO L226 Difference]: Without dead ends: 65 [2020-12-09 09:18:42,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:18:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-09 09:18:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-12-09 09:18:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-09 09:18:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-12-09 09:18:42,563 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 27 [2020-12-09 09:18:42,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:42,563 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-12-09 09:18:42,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:18:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-12-09 09:18:42,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 09:18:42,563 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:42,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:42,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-09 09:18:42,563 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:42,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:42,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1237029900, now seen corresponding path program 1 times [2020-12-09 09:18:42,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:42,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939428927] [2020-12-09 09:18:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:18:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:18:42,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939428927] [2020-12-09 09:18:42,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:18:42,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 09:18:42,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785379950] [2020-12-09 09:18:42,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-09 09:18:42,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:18:42,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-09 09:18:42,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-12-09 09:18:42,626 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 12 states. [2020-12-09 09:18:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:18:42,726 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-12-09 09:18:42,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 09:18:42,726 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-12-09 09:18:42,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:18:42,727 INFO L225 Difference]: With dead ends: 65 [2020-12-09 09:18:42,727 INFO L226 Difference]: Without dead ends: 64 [2020-12-09 09:18:42,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2020-12-09 09:18:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-12-09 09:18:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2020-12-09 09:18:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-09 09:18:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-12-09 09:18:42,728 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 27 [2020-12-09 09:18:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:18:42,728 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-12-09 09:18:42,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-09 09:18:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-12-09 09:18:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 09:18:42,729 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:18:42,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:18:42,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-09 09:18:42,729 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 09:18:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:18:42,729 INFO L82 PathProgramCache]: Analyzing trace with hash 501261589, now seen corresponding path program 1 times [2020-12-09 09:18:42,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:18:42,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146998212] [2020-12-09 09:18:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:18:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:18:42,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:18:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:18:42,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:18:42,755 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 09:18:42,755 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 09:18:42,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-09 09:18:42,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:18:42 BoogieIcfgContainer [2020-12-09 09:18:42,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:18:42,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:18:42,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:18:42,774 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:18:42,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:18:39" (3/4) ... [2020-12-09 09:18:42,776 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 09:18:42,806 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_021d8708-0826-4889-a9c8-9731cf441afe/bin/utaipan/witness.graphml [2020-12-09 09:18:42,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:18:42,807 INFO L168 Benchmark]: Toolchain (without parser) took 4190.90 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 66.0 MB in the beginning and 53.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,808 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 86.0 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:18:42,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.33 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 56.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.82 ms. Allocated memory is still 86.0 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,809 INFO L168 Benchmark]: Boogie Preprocessor took 17.01 ms. Allocated memory is still 86.0 MB. Free memory was 55.2 MB in the beginning and 54.2 MB in the end (delta: 934.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:18:42,809 INFO L168 Benchmark]: RCFGBuilder took 373.66 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 54.2 MB in the beginning and 99.1 MB in the end (delta: -44.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,809 INFO L168 Benchmark]: TraceAbstraction took 3583.33 ms. Allocated memory is still 121.6 MB. Free memory was 99.1 MB in the beginning and 55.3 MB in the end (delta: 43.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,810 INFO L168 Benchmark]: Witness Printer took 32.28 ms. Allocated memory is still 121.6 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:18:42,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 86.0 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.33 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 56.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.82 ms. Allocated memory is still 86.0 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.01 ms. Allocated memory is still 86.0 MB. Free memory was 55.2 MB in the beginning and 54.2 MB in the end (delta: 934.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 373.66 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 54.2 MB in the beginning and 99.1 MB in the end (delta: -44.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3583.33 ms. Allocated memory is still 121.6 MB. Free memory was 99.1 MB in the beginning and 55.3 MB in the end (delta: 43.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. * Witness Printer took 32.28 ms. Allocated memory is still 121.6 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 65]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 [L24] COND FALSE !(x > 0) [L27] EXPR x - 1 [L27] x = x - 1 [L29] COND FALSE !(x > 0) [L32] EXPR x - 1 [L32] x = x - 1 [L34] COND FALSE !(x > 0) [L37] EXPR x - 1 [L37] x = x - 1 [L39] COND FALSE !(x > 0) [L42] EXPR x - 1 [L42] x = x - 1 [L44] COND FALSE !(x > 0) [L47] EXPR x - 1 [L47] x = x - 1 [L49] COND FALSE !(x > 0) [L52] EXPR x - 1 [L52] x = x - 1 [L54] COND FALSE !(x > 0) [L57] EXPR x - 1 [L57] x = x - 1 [L59] COND FALSE !(x > 0) [L62] EXPR x - 1 [L62] x = x - 1 [L64] COND TRUE y<100 && z<100 [L65] y+x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 456 SDtfs, 1842 SDslu, 98 SDs, 0 SdLazy, 3872 SolverSat, 690 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 758 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 19844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...