./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/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 64bit --witnessprinter.graph.data.programhash 4f493a0ec5685991b86ced08697f863f174636a1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:17:16,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:17:16,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:17:16,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:17:16,925 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:17:16,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:17:16,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:17:16,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:17:16,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:17:16,930 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:17:16,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:17:16,931 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:17:16,932 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:17:16,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:17:16,933 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:17:16,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:17:16,934 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:17:16,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:17:16,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:17:16,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:17:16,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:17:16,939 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:17:16,941 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:17:16,941 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:17:16,941 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:17:16,942 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:17:16,942 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:17:16,943 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:17:16,943 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:17:16,944 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:17:16,944 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:17:16,945 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:17:16,945 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:17:16,945 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:17:16,946 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:17:16,946 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:17:16,946 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 13:17:16,956 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:17:16,956 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:17:16,957 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:17:16,957 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:17:16,958 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:17:16,958 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:17:16,958 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:17:16,958 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:17:16,958 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:17:16,958 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:17:16,959 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:17:16,960 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:17:16,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:17:16,960 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:17:16,960 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:17:16,960 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:17:16,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:17:16,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:17:16,961 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f493a0ec5685991b86ced08697f863f174636a1 [2018-11-28 13:17:16,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:17:16,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:17:16,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:17:17,001 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:17:17,001 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:17:17,002 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop_false-no-overflow.c [2018-11-28 13:17:17,041 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/data/b612cfdc3/9e6bdc8dc43e4d3ebc02572c8c4231c5/FLAG60c57afd3 [2018-11-28 13:17:17,439 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:17:17,439 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop_false-no-overflow.c [2018-11-28 13:17:17,444 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/data/b612cfdc3/9e6bdc8dc43e4d3ebc02572c8c4231c5/FLAG60c57afd3 [2018-11-28 13:17:17,453 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/data/b612cfdc3/9e6bdc8dc43e4d3ebc02572c8c4231c5 [2018-11-28 13:17:17,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:17:17,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:17:17,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:17:17,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:17:17,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:17:17,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a7765c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17, skipping insertion in model container [2018-11-28 13:17:17,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:17:17,479 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:17:17,574 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:17:17,578 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:17:17,590 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:17:17,598 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:17:17,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17 WrapperNode [2018-11-28 13:17:17,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:17:17,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:17:17,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:17:17,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:17:17,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:17:17,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:17:17,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:17:17,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:17:17,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... [2018-11-28 13:17:17,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:17:17,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:17:17,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:17:17,638 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:17:17,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/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 [2018-11-28 13:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:17:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:17:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:17:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:17:17,909 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:17:17,909 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 13:17:17,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:17:17 BoogieIcfgContainer [2018-11-28 13:17:17,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:17:17,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:17:17,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:17:17,913 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:17:17,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:17:17" (1/3) ... [2018-11-28 13:17:17,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d5106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:17:17, skipping insertion in model container [2018-11-28 13:17:17,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:17:17" (2/3) ... [2018-11-28 13:17:17,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d5106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:17:17, skipping insertion in model container [2018-11-28 13:17:17,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:17:17" (3/3) ... [2018-11-28 13:17:17,916 INFO L112 eAbstractionObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop_false-no-overflow.c [2018-11-28 13:17:17,925 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:17:17,931 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2018-11-28 13:17:17,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2018-11-28 13:17:17,967 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:17:17,968 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:17:17,968 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:17:17,968 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:17:17,968 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:17:17,968 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:17:17,968 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:17:17,968 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:17:17,968 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:17:17,983 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-11-28 13:17:17,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 13:17:17,987 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:17,988 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:17,990 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:17,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash 40350774, now seen corresponding path program 1 times [2018-11-28 13:17:17,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:17,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:17:18,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:17:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:17:18,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:17:18,121 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2018-11-28 13:17:18,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:18,339 INFO L93 Difference]: Finished difference Result 186 states and 221 transitions. [2018-11-28 13:17:18,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:17:18,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 13:17:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:18,348 INFO L225 Difference]: With dead ends: 186 [2018-11-28 13:17:18,348 INFO L226 Difference]: Without dead ends: 96 [2018-11-28 13:17:18,350 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:17:18,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-11-28 13:17:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2018-11-28 13:17:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-11-28 13:17:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2018-11-28 13:17:18,377 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 8 [2018-11-28 13:17:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:18,378 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2018-11-28 13:17:18,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:17:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2018-11-28 13:17:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 13:17:18,378 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:18,378 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:18,379 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:18,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:18,379 INFO L82 PathProgramCache]: Analyzing trace with hash 40350582, now seen corresponding path program 1 times [2018-11-28 13:17:18,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:18,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:17:18,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:17:18,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:17:18,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:17:18,399 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 3 states. [2018-11-28 13:17:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:18,542 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2018-11-28 13:17:18,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:17:18,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 13:17:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:18,543 INFO L225 Difference]: With dead ends: 117 [2018-11-28 13:17:18,543 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 13:17:18,544 INFO L631 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 [2018-11-28 13:17:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 13:17:18,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2018-11-28 13:17:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 13:17:18,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2018-11-28 13:17:18,551 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 8 [2018-11-28 13:17:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:18,551 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2018-11-28 13:17:18,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:17:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2018-11-28 13:17:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:17:18,552 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:18,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:18,553 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:18,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:18,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1250933629, now seen corresponding path program 1 times [2018-11-28 13:17:18,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:18,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:17:18,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:17:18,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:17:18,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:17:18,580 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 3 states. [2018-11-28 13:17:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:18,677 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2018-11-28 13:17:18,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:17:18,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 13:17:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:18,679 INFO L225 Difference]: With dead ends: 94 [2018-11-28 13:17:18,679 INFO L226 Difference]: Without dead ends: 93 [2018-11-28 13:17:18,679 INFO L631 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 [2018-11-28 13:17:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-28 13:17:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2018-11-28 13:17:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-28 13:17:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2018-11-28 13:17:18,686 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 9 [2018-11-28 13:17:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:18,686 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2018-11-28 13:17:18,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:17:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2018-11-28 13:17:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:17:18,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:18,687 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:18,687 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:18,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash -506607525, now seen corresponding path program 1 times [2018-11-28 13:17:18,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:18,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:17:18,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:17:18,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:17:18,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:17:18,707 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand 4 states. [2018-11-28 13:17:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:18,823 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2018-11-28 13:17:18,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:17:18,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 13:17:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:18,824 INFO L225 Difference]: With dead ends: 133 [2018-11-28 13:17:18,824 INFO L226 Difference]: Without dead ends: 126 [2018-11-28 13:17:18,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:17:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-28 13:17:18,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 100. [2018-11-28 13:17:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-28 13:17:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2018-11-28 13:17:18,829 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 11 [2018-11-28 13:17:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:18,829 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2018-11-28 13:17:18,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:17:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2018-11-28 13:17:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 13:17:18,830 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:18,830 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:18,830 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:18,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:18,831 INFO L82 PathProgramCache]: Analyzing trace with hash -867423228, now seen corresponding path program 1 times [2018-11-28 13:17:18,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:18,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:17:18,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:17:18,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:17:18,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:17:18,863 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand 4 states. [2018-11-28 13:17:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:18,938 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2018-11-28 13:17:18,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:17:18,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 13:17:18,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:18,941 INFO L225 Difference]: With dead ends: 109 [2018-11-28 13:17:18,941 INFO L226 Difference]: Without dead ends: 108 [2018-11-28 13:17:18,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:17:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-28 13:17:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2018-11-28 13:17:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-28 13:17:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-11-28 13:17:18,946 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 12 [2018-11-28 13:17:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:18,946 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-11-28 13:17:18,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:17:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-11-28 13:17:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 13:17:18,947 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:18,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:18,948 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:18,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:18,949 INFO L82 PathProgramCache]: Analyzing trace with hash 170361764, now seen corresponding path program 1 times [2018-11-28 13:17:18,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:18,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:18,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:18,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:18,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:18,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:18,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:17:18,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:17:18,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:17:18,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:17:18,987 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 5 states. [2018-11-28 13:17:19,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,123 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2018-11-28 13:17:19,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:17:19,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-28 13:17:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,124 INFO L225 Difference]: With dead ends: 154 [2018-11-28 13:17:19,124 INFO L226 Difference]: Without dead ends: 148 [2018-11-28 13:17:19,124 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:17:19,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-28 13:17:19,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 109. [2018-11-28 13:17:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-28 13:17:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2018-11-28 13:17:19,131 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 14 [2018-11-28 13:17:19,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,132 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2018-11-28 13:17:19,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:17:19,132 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2018-11-28 13:17:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 13:17:19,132 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,133 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,133 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1412911211, now seen corresponding path program 1 times [2018-11-28 13:17:19,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:19,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:19,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:17:19,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:17:19,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:17:19,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:17:19,156 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 5 states. [2018-11-28 13:17:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,268 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2018-11-28 13:17:19,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:17:19,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-28 13:17:19,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,269 INFO L225 Difference]: With dead ends: 118 [2018-11-28 13:17:19,270 INFO L226 Difference]: Without dead ends: 117 [2018-11-28 13:17:19,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:17:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-28 13:17:19,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2018-11-28 13:17:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-28 13:17:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2018-11-28 13:17:19,275 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 15 [2018-11-28 13:17:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,275 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2018-11-28 13:17:19,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:17:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2018-11-28 13:17:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 13:17:19,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,277 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1403957751, now seen corresponding path program 1 times [2018-11-28 13:17:19,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:19,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:19,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:17:19,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:17:19,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:17:19,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:17:19,308 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 6 states. [2018-11-28 13:17:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,466 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2018-11-28 13:17:19,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:17:19,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-28 13:17:19,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,467 INFO L225 Difference]: With dead ends: 172 [2018-11-28 13:17:19,467 INFO L226 Difference]: Without dead ends: 167 [2018-11-28 13:17:19,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:17:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-28 13:17:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 112. [2018-11-28 13:17:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-28 13:17:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 121 transitions. [2018-11-28 13:17:19,472 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 121 transitions. Word has length 17 [2018-11-28 13:17:19,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,472 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 121 transitions. [2018-11-28 13:17:19,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:17:19,472 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 121 transitions. [2018-11-28 13:17:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 13:17:19,473 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,473 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,474 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1358476530, now seen corresponding path program 1 times [2018-11-28 13:17:19,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:19,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:19,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:17:19,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:17:19,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:17:19,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:17:19,505 INFO L87 Difference]: Start difference. First operand 112 states and 121 transitions. Second operand 6 states. [2018-11-28 13:17:19,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,583 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2018-11-28 13:17:19,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:17:19,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-28 13:17:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,584 INFO L225 Difference]: With dead ends: 121 [2018-11-28 13:17:19,584 INFO L226 Difference]: Without dead ends: 120 [2018-11-28 13:17:19,584 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:17:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-28 13:17:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 111. [2018-11-28 13:17:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-28 13:17:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2018-11-28 13:17:19,588 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 120 transitions. Word has length 18 [2018-11-28 13:17:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,588 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 120 transitions. [2018-11-28 13:17:19,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:17:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 120 transitions. [2018-11-28 13:17:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 13:17:19,589 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,589 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,590 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,590 INFO L82 PathProgramCache]: Analyzing trace with hash -913742894, now seen corresponding path program 1 times [2018-11-28 13:17:19,590 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:19,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:19,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:17:19,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:17:19,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:17:19,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:17:19,637 INFO L87 Difference]: Start difference. First operand 111 states and 120 transitions. Second operand 7 states. [2018-11-28 13:17:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,833 INFO L93 Difference]: Finished difference Result 187 states and 196 transitions. [2018-11-28 13:17:19,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:17:19,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-28 13:17:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,834 INFO L225 Difference]: With dead ends: 187 [2018-11-28 13:17:19,835 INFO L226 Difference]: Without dead ends: 183 [2018-11-28 13:17:19,835 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:17:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-28 13:17:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 109. [2018-11-28 13:17:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-28 13:17:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2018-11-28 13:17:19,838 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 20 [2018-11-28 13:17:19,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,838 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2018-11-28 13:17:19,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:17:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2018-11-28 13:17:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:17:19,839 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,839 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,840 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1102420647, now seen corresponding path program 1 times [2018-11-28 13:17:19,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:19,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:19,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:17:19,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:17:19,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:17:19,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:17:19,875 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 7 states. [2018-11-28 13:17:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:19,960 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2018-11-28 13:17:19,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:17:19,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 13:17:19,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:19,961 INFO L225 Difference]: With dead ends: 118 [2018-11-28 13:17:19,962 INFO L226 Difference]: Without dead ends: 117 [2018-11-28 13:17:19,962 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:17:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-28 13:17:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2018-11-28 13:17:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-28 13:17:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2018-11-28 13:17:19,964 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 21 [2018-11-28 13:17:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:19,964 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2018-11-28 13:17:19,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:17:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2018-11-28 13:17:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 13:17:19,965 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:19,965 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:19,966 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:19,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 188269495, now seen corresponding path program 1 times [2018-11-28 13:17:19,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:19,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:19,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:19,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:20,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:20,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:17:20,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:17:20,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:17:20,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:17:20,008 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 8 states. [2018-11-28 13:17:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:20,231 INFO L93 Difference]: Finished difference Result 199 states and 208 transitions. [2018-11-28 13:17:20,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:17:20,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-28 13:17:20,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:20,233 INFO L225 Difference]: With dead ends: 199 [2018-11-28 13:17:20,233 INFO L226 Difference]: Without dead ends: 196 [2018-11-28 13:17:20,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:17:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-11-28 13:17:20,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 100. [2018-11-28 13:17:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-28 13:17:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2018-11-28 13:17:20,236 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 23 [2018-11-28 13:17:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:20,236 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2018-11-28 13:17:20,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:17:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2018-11-28 13:17:20,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:17:20,237 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:20,237 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:20,237 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:20,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:20,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1401535968, now seen corresponding path program 1 times [2018-11-28 13:17:20,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:20,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:20,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:20,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:20,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:20,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:17:20,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:17:20,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:17:20,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:17:20,273 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand 8 states. [2018-11-28 13:17:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:20,360 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2018-11-28 13:17:20,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:17:20,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-11-28 13:17:20,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:20,361 INFO L225 Difference]: With dead ends: 109 [2018-11-28 13:17:20,361 INFO L226 Difference]: Without dead ends: 108 [2018-11-28 13:17:20,362 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:17:20,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-28 13:17:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2018-11-28 13:17:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-28 13:17:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-11-28 13:17:20,363 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 24 [2018-11-28 13:17:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:20,364 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-11-28 13:17:20,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:17:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-11-28 13:17:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:17:20,365 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:20,365 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:20,365 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:20,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:20,365 INFO L82 PathProgramCache]: Analyzing trace with hash -490646528, now seen corresponding path program 1 times [2018-11-28 13:17:20,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:20,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:20,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:20,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:20,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:20,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:17:20,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:17:20,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:17:20,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:17:20,414 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 9 states. [2018-11-28 13:17:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:20,647 INFO L93 Difference]: Finished difference Result 208 states and 217 transitions. [2018-11-28 13:17:20,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:17:20,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-28 13:17:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:20,648 INFO L225 Difference]: With dead ends: 208 [2018-11-28 13:17:20,648 INFO L226 Difference]: Without dead ends: 206 [2018-11-28 13:17:20,649 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:17:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-28 13:17:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 85. [2018-11-28 13:17:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 13:17:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2018-11-28 13:17:20,651 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 26 [2018-11-28 13:17:20,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:20,651 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2018-11-28 13:17:20,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:17:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2018-11-28 13:17:20,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 13:17:20,651 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:20,652 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:20,652 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:20,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1781070407, now seen corresponding path program 1 times [2018-11-28 13:17:20,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:20,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:20,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:20,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:20,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:20,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:17:20,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:17:20,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:17:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:17:20,703 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 9 states. [2018-11-28 13:17:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:20,773 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2018-11-28 13:17:20,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:17:20,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-11-28 13:17:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:20,774 INFO L225 Difference]: With dead ends: 94 [2018-11-28 13:17:20,774 INFO L226 Difference]: Without dead ends: 93 [2018-11-28 13:17:20,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:17:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-28 13:17:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2018-11-28 13:17:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-28 13:17:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2018-11-28 13:17:20,777 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 27 [2018-11-28 13:17:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:20,777 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2018-11-28 13:17:20,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:17:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2018-11-28 13:17:20,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 13:17:20,777 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:20,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:20,778 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:20,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:20,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1076876955, now seen corresponding path program 1 times [2018-11-28 13:17:20,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:20,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:20,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:20,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:20,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:20,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:17:20,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:17:20,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:17:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:17:20,836 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand 10 states. [2018-11-28 13:17:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:21,074 INFO L93 Difference]: Finished difference Result 214 states and 223 transitions. [2018-11-28 13:17:21,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:17:21,075 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-11-28 13:17:21,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:21,076 INFO L225 Difference]: With dead ends: 214 [2018-11-28 13:17:21,076 INFO L226 Difference]: Without dead ends: 213 [2018-11-28 13:17:21,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:17:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-11-28 13:17:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 64. [2018-11-28 13:17:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 13:17:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-28 13:17:21,079 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 29 [2018-11-28 13:17:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:21,080 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-28 13:17:21,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:17:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-28 13:17:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 13:17:21,080 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:21,080 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:21,081 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:21,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash -157333810, now seen corresponding path program 1 times [2018-11-28 13:17:21,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:21,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:21,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:21,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:21,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:21,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:17:21,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:17:21,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:17:21,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:17:21,156 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 10 states. [2018-11-28 13:17:21,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:21,252 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-11-28 13:17:21,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:17:21,253 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-11-28 13:17:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:21,254 INFO L225 Difference]: With dead ends: 73 [2018-11-28 13:17:21,254 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 13:17:21,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:17:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 13:17:21,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2018-11-28 13:17:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 13:17:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2018-11-28 13:17:21,256 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 30 [2018-11-28 13:17:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:21,257 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2018-11-28 13:17:21,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:17:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2018-11-28 13:17:21,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 13:17:21,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:21,257 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:21,258 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:21,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:21,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2130488114, now seen corresponding path program 1 times [2018-11-28 13:17:21,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:21,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:21,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:21,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:21,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:21,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 13:17:21,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:17:21,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:17:21,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:17:21,328 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand 12 states. [2018-11-28 13:17:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:21,700 INFO L93 Difference]: Finished difference Result 204 states and 221 transitions. [2018-11-28 13:17:21,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-28 13:17:21,701 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-28 13:17:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:21,702 INFO L225 Difference]: With dead ends: 204 [2018-11-28 13:17:21,702 INFO L226 Difference]: Without dead ends: 203 [2018-11-28 13:17:21,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:17:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-28 13:17:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 62. [2018-11-28 13:17:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-28 13:17:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2018-11-28 13:17:21,704 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 32 [2018-11-28 13:17:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:21,705 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2018-11-28 13:17:21,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:17:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2018-11-28 13:17:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 13:17:21,705 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:21,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:21,706 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:21,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:21,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1620621930, now seen corresponding path program 1 times [2018-11-28 13:17:21,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:21,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:21,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:21,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:17:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:17:21,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:17:21,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 13:17:21,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:17:21,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:17:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:17:21,785 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand 12 states. [2018-11-28 13:17:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:17:22,014 INFO L93 Difference]: Finished difference Result 164 states and 180 transitions. [2018-11-28 13:17:22,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:17:22,015 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-11-28 13:17:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:17:22,017 INFO L225 Difference]: With dead ends: 164 [2018-11-28 13:17:22,017 INFO L226 Difference]: Without dead ends: 163 [2018-11-28 13:17:22,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:17:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-11-28 13:17:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 65. [2018-11-28 13:17:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 13:17:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2018-11-28 13:17:22,021 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 33 [2018-11-28 13:17:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:17:22,021 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2018-11-28 13:17:22,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:17:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2018-11-28 13:17:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 13:17:22,021 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:17:22,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:17:22,022 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:17:22,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:17:22,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1322054828, now seen corresponding path program 1 times [2018-11-28 13:17:22,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:17:22,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:17:22,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:22,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:17:22,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:17:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:17:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:17:22,049 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:17:22,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:17:22 BoogieIcfgContainer [2018-11-28 13:17:22,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:17:22,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:17:22,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:17:22,072 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:17:22,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:17:17" (3/4) ... [2018-11-28 13:17:22,074 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 13:17:22,114 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_958a8ca3-d613-482b-9f2f-5640d2f8a490/bin-2019/uautomizer/witness.graphml [2018-11-28 13:17:22,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:17:22,115 INFO L168 Benchmark]: Toolchain (without parser) took 4659.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 275.3 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -93.4 MB). Peak memory consumption was 181.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,116 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:17:22,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.30 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 947.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.29 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:17:22,117 INFO L168 Benchmark]: Boogie Preprocessor took 20.01 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,117 INFO L168 Benchmark]: RCFGBuilder took 272.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,117 INFO L168 Benchmark]: TraceAbstraction took 4160.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 121.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.3 MB). Peak memory consumption was 190.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,118 INFO L168 Benchmark]: Witness Printer took 42.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:17:22,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.30 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 947.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.29 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.01 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 272.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4160.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 121.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.3 MB). Peak memory consumption was 190.0 MB. Max. memory is 11.5 GB. * Witness Printer took 42.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 65]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 VAL [x=-1, y=-2147483640, z=0] [L24] COND FALSE !(x > 0) VAL [x=-1, y=-2147483640, z=0] [L27] EXPR x - 1 [L27] x = x - 1 VAL [x=-2, y=-2147483640, z=0] [L29] COND FALSE !(x > 0) VAL [x=-2, y=-2147483640, z=0] [L32] EXPR x - 1 [L32] x = x - 1 VAL [x=-3, y=-2147483640, z=0] [L34] COND FALSE !(x > 0) VAL [x=-3, y=-2147483640, z=0] [L37] EXPR x - 1 [L37] x = x - 1 VAL [x=-4, y=-2147483640, z=0] [L39] COND FALSE !(x > 0) VAL [x=-4, y=-2147483640, z=0] [L42] EXPR x - 1 [L42] x = x - 1 VAL [x=-5, y=-2147483640, z=0] [L44] COND FALSE !(x > 0) VAL [x=-5, y=-2147483640, z=0] [L47] EXPR x - 1 [L47] x = x - 1 VAL [x=-6, y=-2147483640, z=0] [L49] COND FALSE !(x > 0) VAL [x=-6, y=-2147483640, z=0] [L52] EXPR x - 1 [L52] x = x - 1 VAL [x=-7, y=-2147483640, z=0] [L54] COND FALSE !(x > 0) VAL [x=-7, y=-2147483640, z=0] [L57] EXPR x - 1 [L57] x = x - 1 VAL [x=-8, y=-2147483640, z=0] [L59] COND FALSE !(x > 0) VAL [x=-8, y=-2147483640, z=0] [L62] EXPR x - 1 [L62] x = x - 1 VAL [x=-9, y=-2147483640, z=0] [L64] COND TRUE y<100 && z<100 VAL [x=-9, y=-2147483640, z=0] [L65] y+x VAL [x=-9, y=-2147483640, z=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 36 error locations. UNSAFE Result, 4.1s OverallTime, 20 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 546 SDtfs, 1877 SDslu, 451 SDs, 0 SdLazy, 5284 SolverSat, 759 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 896 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 27874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...