./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 988d729fd88587f81c20330c30676fd457cc5bbc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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-f6fb2bb [2019-11-19 19:53:49,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:53:49,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:53:49,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:53:49,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:53:49,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:53:49,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:53:49,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:53:49,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:53:49,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:53:49,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:53:49,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:53:49,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:53:49,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:53:49,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:53:49,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:53:49,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:53:49,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:53:49,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:53:49,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:53:49,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:53:49,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:53:49,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:53:49,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:53:49,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:53:49,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:53:49,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:53:49,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:53:49,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:53:49,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:53:49,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:53:49,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:53:49,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:53:49,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:53:49,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:53:49,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:53:49,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:53:49,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:53:49,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:53:49,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:53:49,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:53:49,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-19 19:53:49,752 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:53:49,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:53:49,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:53:49,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:53:49,755 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:53:49,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:53:49,756 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 19:53:49,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:53:49,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:53:49,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 19:53:49,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:53:49,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:53:49,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:53:49,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:53:49,759 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 19:53:49,760 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 19:53:49,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:53:49,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:53:49,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:53:49,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:53:49,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:53:49,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:53:49,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:53:49,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:49,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:53:49,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:53:49,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:53:49,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:53:49,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:53:49,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:53:49,764 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 988d729fd88587f81c20330c30676fd457cc5bbc [2019-11-19 19:53:50,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:53:50,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:53:50,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:53:50,087 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:53:50,088 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:53:50,089 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2019-11-19 19:53:50,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432db38c0/043cbf37aa3e4373af37870cdae6388a/FLAGf9ea357fd [2019-11-19 19:53:50,572 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:53:50,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2019-11-19 19:53:50,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432db38c0/043cbf37aa3e4373af37870cdae6388a/FLAGf9ea357fd [2019-11-19 19:53:50,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432db38c0/043cbf37aa3e4373af37870cdae6388a [2019-11-19 19:53:50,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:53:50,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:53:50,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:50,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:53:50,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:53:50,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:50" (1/1) ... [2019-11-19 19:53:50,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565cd3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:50, skipping insertion in model container [2019-11-19 19:53:50,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:50" (1/1) ... [2019-11-19 19:53:50,987 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:53:51,014 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:53:51,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:51,258 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:53:51,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:51,383 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:53:51,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51 WrapperNode [2019-11-19 19:53:51,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:51,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:51,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:53:51,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:53:51,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:51,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:53:51,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:53:51,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:53:51,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... [2019-11-19 19:53:51,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:53:51,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:53:51,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:53:51,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:53:51,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 19:53:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:53:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:53:52,242 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:53:52,242 INFO L285 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-19 19:53:52,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:52 BoogieIcfgContainer [2019-11-19 19:53:52,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:53:52,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:53:52,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:53:52,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:53:52,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:50" (1/3) ... [2019-11-19 19:53:52,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfbd66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:52, skipping insertion in model container [2019-11-19 19:53:52,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:51" (2/3) ... [2019-11-19 19:53:52,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfbd66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:52, skipping insertion in model container [2019-11-19 19:53:52,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:52" (3/3) ... [2019-11-19 19:53:52,252 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3.c.cil.c [2019-11-19 19:53:52,261 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:53:52,272 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 48 error locations. [2019-11-19 19:53:52,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2019-11-19 19:53:52,325 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:53:52,326 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:53:52,326 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:53:52,326 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:53:52,326 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:53:52,326 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:53:52,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:53:52,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:53:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2019-11-19 19:53:52,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 19:53:52,355 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:52,356 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 19:53:52,356 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:52,362 INFO L82 PathProgramCache]: Analyzing trace with hash 922901410, now seen corresponding path program 1 times [2019-11-19 19:53:52,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:52,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073133535] [2019-11-19 19:53:52,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:52,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073133535] [2019-11-19 19:53:52,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:52,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:52,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965029731] [2019-11-19 19:53:52,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 19:53:52,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:52,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 19:53:52,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 19:53:52,505 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2019-11-19 19:53:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:52,543 INFO L93 Difference]: Finished difference Result 323 states and 413 transitions. [2019-11-19 19:53:52,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 19:53:52,544 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-19 19:53:52,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:52,556 INFO L225 Difference]: With dead ends: 323 [2019-11-19 19:53:52,556 INFO L226 Difference]: Without dead ends: 150 [2019-11-19 19:53:52,560 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 [2019-11-19 19:53:52,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-19 19:53:52,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-19 19:53:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-19 19:53:52,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 174 transitions. [2019-11-19 19:53:52,610 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 174 transitions. Word has length 6 [2019-11-19 19:53:52,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:52,611 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 174 transitions. [2019-11-19 19:53:52,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 19:53:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 174 transitions. [2019-11-19 19:53:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 19:53:52,612 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:52,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 19:53:52,613 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2019-11-19 19:53:52,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:52,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918109015] [2019-11-19 19:53:52,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:52,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:52,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918109015] [2019-11-19 19:53:52,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:52,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:52,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790710218] [2019-11-19 19:53:52,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:52,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:52,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:52,677 INFO L87 Difference]: Start difference. First operand 150 states and 174 transitions. Second operand 4 states. [2019-11-19 19:53:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:52,882 INFO L93 Difference]: Finished difference Result 346 states and 394 transitions. [2019-11-19 19:53:52,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:53:52,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-19 19:53:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:52,885 INFO L225 Difference]: With dead ends: 346 [2019-11-19 19:53:52,886 INFO L226 Difference]: Without dead ends: 198 [2019-11-19 19:53:52,887 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 [2019-11-19 19:53:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-11-19 19:53:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 126. [2019-11-19 19:53:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-19 19:53:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2019-11-19 19:53:52,901 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 6 [2019-11-19 19:53:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:52,901 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2019-11-19 19:53:52,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2019-11-19 19:53:52,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 19:53:52,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:52,902 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:53:52,903 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash -745301351, now seen corresponding path program 1 times [2019-11-19 19:53:52,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:52,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649440929] [2019-11-19 19:53:52,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:52,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649440929] [2019-11-19 19:53:52,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:52,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:52,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952875393] [2019-11-19 19:53:52,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:52,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:52,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:52,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:52,957 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand 4 states. [2019-11-19 19:53:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:53,085 INFO L93 Difference]: Finished difference Result 207 states and 234 transitions. [2019-11-19 19:53:53,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:53:53,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-19 19:53:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:53,092 INFO L225 Difference]: With dead ends: 207 [2019-11-19 19:53:53,092 INFO L226 Difference]: Without dead ends: 203 [2019-11-19 19:53:53,095 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 [2019-11-19 19:53:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-11-19 19:53:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 127. [2019-11-19 19:53:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-11-19 19:53:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2019-11-19 19:53:53,123 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 9 [2019-11-19 19:53:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:53,124 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2019-11-19 19:53:53,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:53,124 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2019-11-19 19:53:53,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 19:53:53,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:53,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:53:53,126 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:53,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:53,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1629505264, now seen corresponding path program 1 times [2019-11-19 19:53:53,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:53,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159952941] [2019-11-19 19:53:53,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:53,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159952941] [2019-11-19 19:53:53,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:53,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:53,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978427733] [2019-11-19 19:53:53,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:53,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:53,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:53,165 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 3 states. [2019-11-19 19:53:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:53,249 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2019-11-19 19:53:53,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:53,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-19 19:53:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:53,251 INFO L225 Difference]: With dead ends: 199 [2019-11-19 19:53:53,252 INFO L226 Difference]: Without dead ends: 197 [2019-11-19 19:53:53,252 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 [2019-11-19 19:53:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-11-19 19:53:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 125. [2019-11-19 19:53:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-19 19:53:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2019-11-19 19:53:53,265 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 10 [2019-11-19 19:53:53,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:53,266 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2019-11-19 19:53:53,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2019-11-19 19:53:53,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 19:53:53,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:53,267 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:53:53,268 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:53,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:53,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1912392577, now seen corresponding path program 1 times [2019-11-19 19:53:53,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:53,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886330205] [2019-11-19 19:53:53,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:53,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886330205] [2019-11-19 19:53:53,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:53,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:53,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358455798] [2019-11-19 19:53:53,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:53,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:53,323 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand 4 states. [2019-11-19 19:53:53,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:53,427 INFO L93 Difference]: Finished difference Result 206 states and 233 transitions. [2019-11-19 19:53:53,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:53:53,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-19 19:53:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:53,429 INFO L225 Difference]: With dead ends: 206 [2019-11-19 19:53:53,430 INFO L226 Difference]: Without dead ends: 203 [2019-11-19 19:53:53,430 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 [2019-11-19 19:53:53,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-11-19 19:53:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 129. [2019-11-19 19:53:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-19 19:53:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-11-19 19:53:53,452 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 11 [2019-11-19 19:53:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:53,453 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-11-19 19:53:53,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-11-19 19:53:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 19:53:53,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:53,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:53:53,458 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:53,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1164357791, now seen corresponding path program 1 times [2019-11-19 19:53:53,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:53,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035165181] [2019-11-19 19:53:53,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:53,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035165181] [2019-11-19 19:53:53,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:53,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:53,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540759230] [2019-11-19 19:53:53,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:53,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:53,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:53,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:53,543 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 4 states. [2019-11-19 19:53:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:53,629 INFO L93 Difference]: Finished difference Result 210 states and 239 transitions. [2019-11-19 19:53:53,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:53:53,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-19 19:53:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:53,632 INFO L225 Difference]: With dead ends: 210 [2019-11-19 19:53:53,633 INFO L226 Difference]: Without dead ends: 208 [2019-11-19 19:53:53,633 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 [2019-11-19 19:53:53,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-19 19:53:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 132. [2019-11-19 19:53:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 19:53:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2019-11-19 19:53:53,644 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 12 [2019-11-19 19:53:53,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:53,645 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2019-11-19 19:53:53,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2019-11-19 19:53:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 19:53:53,647 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:53,648 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:53:53,652 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.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_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.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:53,653 INFO L82 PathProgramCache]: Analyzing trace with hash -843278768, now seen corresponding path program 1 times [2019-11-19 19:53:53,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:53,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774078608] [2019-11-19 19:53:53,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:53,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:53:53,738 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:53:53,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:53:53 BoogieIcfgContainer [2019-11-19 19:53:53,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:53:53,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:53:53,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:53:53,780 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:53:53,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:52" (3/4) ... [2019-11-19 19:53:53,786 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 19:53:53,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:53:53,789 INFO L168 Benchmark]: Toolchain (without parser) took 2815.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.7 MB in the beginning and 961.3 MB in the end (delta: -3.7 MB). Peak memory consumption was 132.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:53,790 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:53,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:53,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:53,799 INFO L168 Benchmark]: Boogie Preprocessor took 36.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:53,800 INFO L168 Benchmark]: RCFGBuilder took 764.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:53,801 INFO L168 Benchmark]: TraceAbstraction took 1533.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.3 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:53,801 INFO L168 Benchmark]: Witness Printer took 6.83 ms. Allocated memory is still 1.2 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:53,816 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 764.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1533.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.3 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.83 ms. Allocated memory is still 1.2 GB. Free memory is still 961.3 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_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L231] 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, 172 locations, 48 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1133 SDtfs, 972 SDslu, 632 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 370 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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...