./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 479d6c726d10e8798df24a80dcd9ef5974b242df ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:29:20,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:29:20,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:29:20,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:29:20,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:29:20,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:29:20,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:29:20,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:29:20,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:29:20,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:29:20,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:29:20,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:29:20,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:29:20,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:29:20,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:29:20,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:29:20,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:29:20,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:29:20,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:29:20,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:29:20,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:29:20,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:29:20,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:29:20,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:29:20,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:29:20,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:29:20,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:29:20,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:29:20,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:29:20,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:29:20,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:29:20,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:29:20,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:29:20,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:29:20,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:29:20,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:29:20,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:29:20,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:29:20,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:29:20,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:29:20,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:29:20,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-20 02:29:20,064 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:29:20,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:29:20,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:29:20,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:29:20,065 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:29:20,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:29:20,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:29:20,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:29:20,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:29:20,067 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 02:29:20,067 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:29:20,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:29:20,068 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:29:20,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:29:20,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:29:20,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:29:20,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:29:20,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:29:20,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:29:20,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:29:20,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:29:20,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:29:20,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:29:20,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:29:20,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:29:20,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 479d6c726d10e8798df24a80dcd9ef5974b242df [2019-11-20 02:29:20,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:29:20,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:29:20,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:29:20,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:29:20,212 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:29:20,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2019-11-20 02:29:20,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/data/c5ffe3b98/9bb9a9b22075493990222dd69e857f09/FLAGe8d34c2dd [2019-11-20 02:29:20,699 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:29:20,700 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2019-11-20 02:29:20,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/data/c5ffe3b98/9bb9a9b22075493990222dd69e857f09/FLAGe8d34c2dd [2019-11-20 02:29:20,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/data/c5ffe3b98/9bb9a9b22075493990222dd69e857f09 [2019-11-20 02:29:20,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:29:20,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:29:20,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:29:20,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:29:20,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:29:20,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:29:20" (1/1) ... [2019-11-20 02:29:20,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9f6adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:20, skipping insertion in model container [2019-11-20 02:29:20,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:29:20" (1/1) ... [2019-11-20 02:29:20,738 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:29:20,772 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:29:21,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:29:21,122 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:29:21,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:29:21,186 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:29:21,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21 WrapperNode [2019-11-20 02:29:21,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:29:21,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:29:21,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:29:21,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:29:21,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:29:21,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:29:21,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:29:21,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:29:21,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... [2019-11-20 02:29:21,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:29:21,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:29:21,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:29:21,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:29:21,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75bb89fd-e746-4193-971b-861063ebf02d/bin/uautomizer/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 [2019-11-20 02:29:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:29:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:29:21,923 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:29:21,924 INFO L285 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-20 02:29:21,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:21 BoogieIcfgContainer [2019-11-20 02:29:21,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:29:21,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:29:21,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:29:21,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:29:21,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:29:20" (1/3) ... [2019-11-20 02:29:21,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d60af26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:29:21, skipping insertion in model container [2019-11-20 02:29:21,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:21" (2/3) ... [2019-11-20 02:29:21,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d60af26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:29:21, skipping insertion in model container [2019-11-20 02:29:21,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:21" (3/3) ... [2019-11-20 02:29:21,933 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2019-11-20 02:29:21,942 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:29:21,949 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-11-20 02:29:21,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-11-20 02:29:21,993 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:29:21,993 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:29:21,993 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:29:21,994 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:29:21,994 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:29:21,995 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:29:21,995 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:29:21,995 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:29:22,028 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-11-20 02:29:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:29:22,033 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:22,034 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:29:22,034 INFO L410 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]=== [2019-11-20 02:29:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:22,040 INFO L82 PathProgramCache]: Analyzing trace with hash 922901410, now seen corresponding path program 1 times [2019-11-20 02:29:22,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:22,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563468636] [2019-11-20 02:29:22,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:22,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563468636] [2019-11-20 02:29:22,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:22,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:22,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647156645] [2019-11-20 02:29:22,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 02:29:22,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:22,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 02:29:22,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:29:22,169 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-11-20 02:29:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:22,195 INFO L93 Difference]: Finished difference Result 301 states and 409 transitions. [2019-11-20 02:29:22,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 02:29:22,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-20 02:29:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:22,207 INFO L225 Difference]: With dead ends: 301 [2019-11-20 02:29:22,207 INFO L226 Difference]: Without dead ends: 122 [2019-11-20 02:29:22,211 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:29:22,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-20 02:29:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-11-20 02:29:22,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-20 02:29:22,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 145 transitions. [2019-11-20 02:29:22,248 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 145 transitions. Word has length 6 [2019-11-20 02:29:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:22,248 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 145 transitions. [2019-11-20 02:29:22,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 02:29:22,248 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 145 transitions. [2019-11-20 02:29:22,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:29:22,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:22,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:29:22,249 INFO L410 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]=== [2019-11-20 02:29:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:22,250 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2019-11-20 02:29:22,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:22,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57311538] [2019-11-20 02:29:22,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:22,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57311538] [2019-11-20 02:29:22,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:22,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:22,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486881025] [2019-11-20 02:29:22,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:29:22,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:22,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:29:22,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:29:22,322 INFO L87 Difference]: Start difference. First operand 122 states and 145 transitions. Second operand 4 states. [2019-11-20 02:29:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:22,512 INFO L93 Difference]: Finished difference Result 262 states and 307 transitions. [2019-11-20 02:29:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:29:22,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-20 02:29:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:22,522 INFO L225 Difference]: With dead ends: 262 [2019-11-20 02:29:22,522 INFO L226 Difference]: Without dead ends: 142 [2019-11-20 02:29:22,523 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:29:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-20 02:29:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2019-11-20 02:29:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 02:29:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2019-11-20 02:29:22,534 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 6 [2019-11-20 02:29:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:22,535 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2019-11-20 02:29:22,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:29:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2019-11-20 02:29:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 02:29:22,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:22,538 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:22,539 INFO L410 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]=== [2019-11-20 02:29:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash -745301351, now seen corresponding path program 1 times [2019-11-20 02:29:22,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:22,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31348844] [2019-11-20 02:29:22,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:22,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31348844] [2019-11-20 02:29:22,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:22,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:22,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347625199] [2019-11-20 02:29:22,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:29:22,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:22,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:29:22,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:29:22,611 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand 4 states. [2019-11-20 02:29:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:22,717 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2019-11-20 02:29:22,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:29:22,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-20 02:29:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:22,722 INFO L225 Difference]: With dead ends: 151 [2019-11-20 02:29:22,722 INFO L226 Difference]: Without dead ends: 147 [2019-11-20 02:29:22,722 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:29:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-20 02:29:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 99. [2019-11-20 02:29:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-20 02:29:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 117 transitions. [2019-11-20 02:29:22,747 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 117 transitions. Word has length 9 [2019-11-20 02:29:22,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:22,749 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 117 transitions. [2019-11-20 02:29:22,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:29:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 117 transitions. [2019-11-20 02:29:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 02:29:22,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:22,751 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:22,751 INFO L410 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]=== [2019-11-20 02:29:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:22,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1629505264, now seen corresponding path program 1 times [2019-11-20 02:29:22,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:22,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604324847] [2019-11-20 02:29:22,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:22,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604324847] [2019-11-20 02:29:22,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:22,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:22,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598334597] [2019-11-20 02:29:22,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:29:22,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:22,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:29:22,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:29:22,782 INFO L87 Difference]: Start difference. First operand 99 states and 117 transitions. Second operand 3 states. [2019-11-20 02:29:22,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:22,835 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2019-11-20 02:29:22,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:29:22,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-20 02:29:22,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:22,837 INFO L225 Difference]: With dead ends: 143 [2019-11-20 02:29:22,837 INFO L226 Difference]: Without dead ends: 141 [2019-11-20 02:29:22,838 INFO L630 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 [2019-11-20 02:29:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-20 02:29:22,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 97. [2019-11-20 02:29:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-20 02:29:22,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 115 transitions. [2019-11-20 02:29:22,847 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 115 transitions. Word has length 10 [2019-11-20 02:29:22,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:22,848 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 115 transitions. [2019-11-20 02:29:22,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:29:22,848 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 115 transitions. [2019-11-20 02:29:22,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 02:29:22,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:22,849 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:22,850 INFO L410 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]=== [2019-11-20 02:29:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:22,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1912392577, now seen corresponding path program 1 times [2019-11-20 02:29:22,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:22,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824608439] [2019-11-20 02:29:22,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:22,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824608439] [2019-11-20 02:29:22,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:22,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:22,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607858092] [2019-11-20 02:29:22,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:29:22,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:22,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:29:22,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:29:22,884 INFO L87 Difference]: Start difference. First operand 97 states and 115 transitions. Second operand 4 states. [2019-11-20 02:29:22,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:22,981 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2019-11-20 02:29:22,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:29:22,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 02:29:22,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:22,983 INFO L225 Difference]: With dead ends: 150 [2019-11-20 02:29:22,983 INFO L226 Difference]: Without dead ends: 147 [2019-11-20 02:29:22,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:29:22,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-20 02:29:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 101. [2019-11-20 02:29:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-20 02:29:22,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2019-11-20 02:29:22,998 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 11 [2019-11-20 02:29:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:22,998 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2019-11-20 02:29:22,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:29:22,999 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2019-11-20 02:29:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 02:29:23,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:23,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:23,001 INFO L410 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]=== [2019-11-20 02:29:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:23,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1164357791, now seen corresponding path program 1 times [2019-11-20 02:29:23,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:23,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940452905] [2019-11-20 02:29:23,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:23,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:23,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940452905] [2019-11-20 02:29:23,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:23,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:29:23,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088426688] [2019-11-20 02:29:23,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:29:23,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:23,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:29:23,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:29:23,061 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand 4 states. [2019-11-20 02:29:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:23,147 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2019-11-20 02:29:23,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:29:23,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-20 02:29:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:29:23,148 INFO L225 Difference]: With dead ends: 154 [2019-11-20 02:29:23,148 INFO L226 Difference]: Without dead ends: 152 [2019-11-20 02:29:23,149 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:29:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-20 02:29:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 104. [2019-11-20 02:29:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-20 02:29:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2019-11-20 02:29:23,161 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 12 [2019-11-20 02:29:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:29:23,161 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2019-11-20 02:29:23,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:29:23,162 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2019-11-20 02:29:23,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 02:29:23,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:29:23,163 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:23,163 INFO L410 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]=== [2019-11-20 02:29:23,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:23,164 INFO L82 PathProgramCache]: Analyzing trace with hash -843278768, now seen corresponding path program 1 times [2019-11-20 02:29:23,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:23,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005376852] [2019-11-20 02:29:23,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:23,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:23,233 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 02:29:23,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:29:23 BoogieIcfgContainer [2019-11-20 02:29:23,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:29:23,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:29:23,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:29:23,258 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:29:23,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:21" (3/4) ... [2019-11-20 02:29:23,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:29:23,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:29:23,263 INFO L168 Benchmark]: Toolchain (without parser) took 2538.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 948.6 MB in the beginning and 1.0 GB in the end (delta: -53.8 MB). Peak memory consumption was 127.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:23,263 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:23,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 948.6 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:23,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:23,265 INFO L168 Benchmark]: Boogie Preprocessor took 35.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:23,266 INFO L168 Benchmark]: RCFGBuilder took 651.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:23,266 INFO L168 Benchmark]: TraceAbstraction took 1330.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 115.7 MB). Peak memory consumption was 115.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:23,267 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:23,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 461.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 948.6 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 651.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1330.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 115.7 MB). Peak memory consumption was 115.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 66. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] EXPR e + 128 [L67] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 160 locations, 36 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 873 SDtfs, 711 SDslu, 429 SDs, 0 SdLazy, 244 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 230 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...