./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/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_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/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_e586f1f8-85c7-460f-a40f-782d46a856ed/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 0.1.25-f470102 [2019-12-07 15:01:45,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:01:45,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:01:45,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:01:45,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:01:45,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:01:45,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:01:45,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:01:45,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:01:45,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:01:45,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:01:45,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:01:45,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:01:45,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:01:45,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:01:45,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:01:45,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:01:45,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:01:45,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:01:45,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:01:45,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:01:45,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:01:45,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:01:45,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:01:45,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:01:45,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:01:45,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:01:45,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:01:45,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:01:45,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:01:45,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:01:45,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:01:45,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:01:45,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:01:45,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:01:45,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:01:45,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:01:45,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:01:45,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:01:45,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:01:45,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:01:45,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-12-07 15:01:45,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:01:45,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:01:45,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:01:45,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:01:45,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:01:45,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:01:45,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:01:45,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:01:45,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:01:45,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:01:45,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:01:45,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:01:45,507 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_e586f1f8-85c7-460f-a40f-782d46a856ed/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 [2019-12-07 15:01:45,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:01:45,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:01:45,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:01:45,622 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:01:45,622 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:01:45,623 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2019-12-07 15:01:45,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/data/dfd64b16e/916917c532c5417781af538850db79a1/FLAG31a6fd9b0 [2019-12-07 15:01:46,052 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:01:46,053 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2019-12-07 15:01:46,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/data/dfd64b16e/916917c532c5417781af538850db79a1/FLAG31a6fd9b0 [2019-12-07 15:01:46,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/bin/uautomizer/data/dfd64b16e/916917c532c5417781af538850db79a1 [2019-12-07 15:01:46,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:01:46,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:01:46,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:01:46,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:01:46,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:01:46,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414b5e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46, skipping insertion in model container [2019-12-07 15:01:46,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:01:46,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:01:46,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:01:46,643 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:01:46,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:01:46,680 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:01:46,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46 WrapperNode [2019-12-07 15:01:46,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:01:46,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:01:46,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:01:46,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:01:46,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:01:46,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:01:46,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:01:46,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:01:46,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... [2019-12-07 15:01:46,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:01:46,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:01:46,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:01:46,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:01:46,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e586f1f8-85c7-460f-a40f-782d46a856ed/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 [2019-12-07 15:01:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:01:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:01:47,131 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:01:47,132 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 15:01:47,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:01:47 BoogieIcfgContainer [2019-12-07 15:01:47,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:01:47,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:01:47,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:01:47,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:01:47,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:01:46" (1/3) ... [2019-12-07 15:01:47,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e640773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:01:47, skipping insertion in model container [2019-12-07 15:01:47,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:01:46" (2/3) ... [2019-12-07 15:01:47,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e640773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:01:47, skipping insertion in model container [2019-12-07 15:01:47,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:01:47" (3/3) ... [2019-12-07 15:01:47,137 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2019-12-07 15:01:47,144 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:01:47,148 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-12-07 15:01:47,156 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-12-07 15:01:47,172 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:01:47,172 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:01:47,172 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:01:47,173 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:01:47,173 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:01:47,173 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:01:47,173 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:01:47,173 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:01:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-12-07 15:01:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:01:47,193 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,193 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,194 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]=== [2019-12-07 15:01:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,198 INFO L82 PathProgramCache]: Analyzing trace with hash 922901410, now seen corresponding path program 1 times [2019-12-07 15:01:47,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181082415] [2019-12-07 15:01:47,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181082415] [2019-12-07 15:01:47,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745389145] [2019-12-07 15:01:47,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:01:47,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:01:47,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:01:47,294 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-12-07 15:01:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,316 INFO L93 Difference]: Finished difference Result 301 states and 409 transitions. [2019-12-07 15:01:47,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:01:47,317 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-07 15:01:47,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,325 INFO L225 Difference]: With dead ends: 301 [2019-12-07 15:01:47,325 INFO L226 Difference]: Without dead ends: 122 [2019-12-07 15:01:47,328 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 [2019-12-07 15:01:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-07 15:01:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-12-07 15:01:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-07 15:01:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 145 transitions. [2019-12-07 15:01:47,356 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 145 transitions. Word has length 6 [2019-12-07 15:01:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,357 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 145 transitions. [2019-12-07 15:01:47,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:01:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 145 transitions. [2019-12-07 15:01:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:01:47,357 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,357 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,358 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]=== [2019-12-07 15:01:47,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,358 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2019-12-07 15:01:47,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818966982] [2019-12-07 15:01:47,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,394 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818966982] [2019-12-07 15:01:47,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466885532] [2019-12-07 15:01:47,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:01:47,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:01:47,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:01:47,395 INFO L87 Difference]: Start difference. First operand 122 states and 145 transitions. Second operand 4 states. [2019-12-07 15:01:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,491 INFO L93 Difference]: Finished difference Result 262 states and 307 transitions. [2019-12-07 15:01:47,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:01:47,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 15:01:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,493 INFO L225 Difference]: With dead ends: 262 [2019-12-07 15:01:47,493 INFO L226 Difference]: Without dead ends: 142 [2019-12-07 15:01:47,494 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 [2019-12-07 15:01:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-07 15:01:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2019-12-07 15:01:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-12-07 15:01:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2019-12-07 15:01:47,501 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 6 [2019-12-07 15:01:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,501 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2019-12-07 15:01:47,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:01:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2019-12-07 15:01:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:01:47,502 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,502 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,502 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]=== [2019-12-07 15:01:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,502 INFO L82 PathProgramCache]: Analyzing trace with hash -745301351, now seen corresponding path program 1 times [2019-12-07 15:01:47,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604668397] [2019-12-07 15:01:47,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604668397] [2019-12-07 15:01:47,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590486272] [2019-12-07 15:01:47,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:01:47,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:01:47,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:01:47,527 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand 4 states. [2019-12-07 15:01:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,579 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2019-12-07 15:01:47,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:01:47,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 15:01:47,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,580 INFO L225 Difference]: With dead ends: 151 [2019-12-07 15:01:47,580 INFO L226 Difference]: Without dead ends: 147 [2019-12-07 15:01:47,581 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 [2019-12-07 15:01:47,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-12-07 15:01:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 99. [2019-12-07 15:01:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 15:01:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 117 transitions. [2019-12-07 15:01:47,588 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 117 transitions. Word has length 9 [2019-12-07 15:01:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,588 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 117 transitions. [2019-12-07 15:01:47,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:01:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 117 transitions. [2019-12-07 15:01:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:01:47,589 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,589 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,589 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]=== [2019-12-07 15:01:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1629505264, now seen corresponding path program 1 times [2019-12-07 15:01:47,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053624970] [2019-12-07 15:01:47,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053624970] [2019-12-07 15:01:47,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527011406] [2019-12-07 15:01:47,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:01:47,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:01:47,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:01:47,607 INFO L87 Difference]: Start difference. First operand 99 states and 117 transitions. Second operand 3 states. [2019-12-07 15:01:47,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,645 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2019-12-07 15:01:47,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:01:47,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 15:01:47,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,647 INFO L225 Difference]: With dead ends: 143 [2019-12-07 15:01:47,647 INFO L226 Difference]: Without dead ends: 141 [2019-12-07 15:01:47,648 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 [2019-12-07 15:01:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-12-07 15:01:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 97. [2019-12-07 15:01:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 15:01:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 115 transitions. [2019-12-07 15:01:47,657 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 115 transitions. Word has length 10 [2019-12-07 15:01:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,658 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 115 transitions. [2019-12-07 15:01:47,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:01:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 115 transitions. [2019-12-07 15:01:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:01:47,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,659 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]=== [2019-12-07 15:01:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1912392577, now seen corresponding path program 1 times [2019-12-07 15:01:47,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020618373] [2019-12-07 15:01:47,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020618373] [2019-12-07 15:01:47,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257645443] [2019-12-07 15:01:47,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:01:47,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:01:47,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:01:47,689 INFO L87 Difference]: Start difference. First operand 97 states and 115 transitions. Second operand 4 states. [2019-12-07 15:01:47,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,744 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2019-12-07 15:01:47,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:01:47,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 15:01:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,746 INFO L225 Difference]: With dead ends: 150 [2019-12-07 15:01:47,746 INFO L226 Difference]: Without dead ends: 147 [2019-12-07 15:01:47,746 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 [2019-12-07 15:01:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-12-07 15:01:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 101. [2019-12-07 15:01:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-12-07 15:01:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2019-12-07 15:01:47,755 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 11 [2019-12-07 15:01:47,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,755 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2019-12-07 15:01:47,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:01:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2019-12-07 15:01:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:01:47,756 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,756 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,757 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]=== [2019-12-07 15:01:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1164357791, now seen corresponding path program 1 times [2019-12-07 15:01:47,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100722246] [2019-12-07 15:01:47,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:01:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:01:47,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100722246] [2019-12-07 15:01:47,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:01:47,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:01:47,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330998782] [2019-12-07 15:01:47,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:01:47,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:01:47,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:01:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:01:47,788 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand 4 states. [2019-12-07 15:01:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:01:47,838 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2019-12-07 15:01:47,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:01:47,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 15:01:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:01:47,840 INFO L225 Difference]: With dead ends: 154 [2019-12-07 15:01:47,840 INFO L226 Difference]: Without dead ends: 152 [2019-12-07 15:01:47,840 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 [2019-12-07 15:01:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-12-07 15:01:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 104. [2019-12-07 15:01:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 15:01:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2019-12-07 15:01:47,845 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 12 [2019-12-07 15:01:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:01:47,846 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2019-12-07 15:01:47,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:01:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2019-12-07 15:01:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:01:47,846 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:01:47,846 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:01:47,847 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]=== [2019-12-07 15:01:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:01:47,847 INFO L82 PathProgramCache]: Analyzing trace with hash -843278768, now seen corresponding path program 1 times [2019-12-07 15:01:47,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:01:47,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963021129] [2019-12-07 15:01:47,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:01:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:01:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:01:47,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:01:47,874 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:01:47,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:01:47 BoogieIcfgContainer [2019-12-07 15:01:47,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:01:47,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:01:47,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:01:47,890 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:01:47,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:01:47" (3/4) ... [2019-12-07 15:01:47,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:01:47,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:01:47,894 INFO L168 Benchmark]: Toolchain (without parser) took 1458.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.3 MB in the beginning and 911.3 MB in the end (delta: 28.0 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:01:47,895 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:01:47,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:01:47,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:01:47,896 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:01:47,896 INFO L168 Benchmark]: RCFGBuilder took 392.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:01:47,897 INFO L168 Benchmark]: TraceAbstraction took 755.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.3 MB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:01:47,897 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 1.1 GB. Free memory is still 911.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:01:47,899 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 392.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 755.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.3 MB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.43 ms. Allocated memory is still 1.1 GB. Free memory is still 911.3 MB. 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: 0.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 873 SDtfs, 711 SDslu, 429 SDs, 0 SdLazy, 244 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 0.0s 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...