./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f16087843ad8a83da47d6a6a4e9d674fa79150d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 09:00:34,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:34,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:34,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:34,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:34,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:34,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:34,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:34,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:34,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:34,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:34,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:34,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:34,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:34,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:34,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:34,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:34,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:34,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:34,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:34,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:34,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:34,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:34,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:34,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:34,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:34,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:34,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:34,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:34,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:34,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:34,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:34,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:34,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:34,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:34,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:34,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:34,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:34,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:34,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:34,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:34,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 09:00:34,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:34,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:34,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:34,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:34,173 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:34,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:34,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:34,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:34,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:34,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:34,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:34,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:34,174 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 09:00:34,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:34,175 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:34,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:34,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:34,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:34,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:34,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:34,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:34,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:34,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:34,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:34,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:34,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:34,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:34,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f16087843ad8a83da47d6a6a4e9d674fa79150d [2019-10-22 09:00:34,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:34,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:34,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:34,224 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:34,224 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:34,225 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-10-22 09:00:34,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/data/f5af277dc/ef8a1682492c4c12ba9677ee8c6b32ec/FLAGa913a18c1 [2019-10-22 09:00:34,685 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:34,686 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-10-22 09:00:34,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/data/f5af277dc/ef8a1682492c4c12ba9677ee8c6b32ec/FLAGa913a18c1 [2019-10-22 09:00:34,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/data/f5af277dc/ef8a1682492c4c12ba9677ee8c6b32ec [2019-10-22 09:00:34,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:34,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:34,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:34,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:34,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:34,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69750992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:34,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:34,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:34,898 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:34,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:34,995 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:34,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34 WrapperNode [2019-10-22 09:00:34,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:34,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:34,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:34,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:35,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:35,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:35,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:35,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:35,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:35,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:35,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:35,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:35,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:35,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:35,442 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:35,442 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 09:00:35,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:35 BoogieIcfgContainer [2019-10-22 09:00:35,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:35,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:35,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:35,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:35,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:34" (1/3) ... [2019-10-22 09:00:35,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b98bb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:35, skipping insertion in model container [2019-10-22 09:00:35,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (2/3) ... [2019-10-22 09:00:35,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b98bb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:35, skipping insertion in model container [2019-10-22 09:00:35,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:35" (3/3) ... [2019-10-22 09:00:35,451 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-10-22 09:00:35,461 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:35,467 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 09:00:35,483 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 09:00:35,510 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:35,510 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:35,511 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:35,511 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:35,511 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:35,511 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:35,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:35,511 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-22 09:00:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 09:00:35,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,543 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 09:00:35,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,549 INFO L82 PathProgramCache]: Analyzing trace with hash 964492, now seen corresponding path program 1 times [2019-10-22 09:00:35,557 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139967858] [2019-10-22 09:00:35,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139967858] [2019-10-22 09:00:35,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:35,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707584527] [2019-10-22 09:00:35,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:35,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:35,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:35,671 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-22 09:00:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,686 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2019-10-22 09:00:35,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:35,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-10-22 09:00:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:35,695 INFO L225 Difference]: With dead ends: 65 [2019-10-22 09:00:35,695 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 09:00:35,700 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:35,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 09:00:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 09:00:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 09:00:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-10-22 09:00:35,727 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2019-10-22 09:00:35,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:35,727 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-10-22 09:00:35,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:35,728 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-10-22 09:00:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 09:00:35,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,728 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 09:00:35,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:35,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,729 INFO L82 PathProgramCache]: Analyzing trace with hash 963500, now seen corresponding path program 1 times [2019-10-22 09:00:35,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,730 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80883942] [2019-10-22 09:00:35,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80883942] [2019-10-22 09:00:35,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:35,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233781210] [2019-10-22 09:00:35,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:35,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,766 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-10-22 09:00:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,825 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-10-22 09:00:35,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:35,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 09:00:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:35,828 INFO L225 Difference]: With dead ends: 49 [2019-10-22 09:00:35,828 INFO L226 Difference]: Without dead ends: 46 [2019-10-22 09:00:35,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-22 09:00:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2019-10-22 09:00:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:00:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-10-22 09:00:35,835 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 4 [2019-10-22 09:00:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:35,835 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-10-22 09:00:35,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-10-22 09:00:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:00:35,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,836 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:35,837 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:35,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,837 INFO L82 PathProgramCache]: Analyzing trace with hash 29868584, now seen corresponding path program 1 times [2019-10-22 09:00:35,837 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818783000] [2019-10-22 09:00:35,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818783000] [2019-10-22 09:00:35,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:00:35,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522335747] [2019-10-22 09:00:35,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:35,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:35,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,860 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 3 states. [2019-10-22 09:00:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,889 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-10-22 09:00:35,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:35,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-10-22 09:00:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:35,891 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:00:35,891 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 09:00:35,891 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 09:00:35,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-22 09:00:35,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-22 09:00:35,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2019-10-22 09:00:35,896 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 5 [2019-10-22 09:00:35,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:35,897 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2019-10-22 09:00:35,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2019-10-22 09:00:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:00:35,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,897 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:35,898 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:35,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,898 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2019-10-22 09:00:35,898 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084990319] [2019-10-22 09:00:35,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,921 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084990319] [2019-10-22 09:00:35,921 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:35,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109174596] [2019-10-22 09:00:35,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:35,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:35,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:35,923 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand 4 states. [2019-10-22 09:00:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,067 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2019-10-22 09:00:36,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:36,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 09:00:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,068 INFO L225 Difference]: With dead ends: 55 [2019-10-22 09:00:36,068 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 09:00:36,069 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 09:00:36,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2019-10-22 09:00:36,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-22 09:00:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2019-10-22 09:00:36,075 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 5 [2019-10-22 09:00:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,075 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2019-10-22 09:00:36,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2019-10-22 09:00:36,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 09:00:36,076 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,076 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,076 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,077 INFO L82 PathProgramCache]: Analyzing trace with hash 925926190, now seen corresponding path program 1 times [2019-10-22 09:00:36,077 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208684248] [2019-10-22 09:00:36,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:36,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208684248] [2019-10-22 09:00:36,161 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,161 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:00:36,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224660296] [2019-10-22 09:00:36,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:36,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:36,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,162 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2019-10-22 09:00:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,234 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2019-10-22 09:00:36,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:36,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 09:00:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,236 INFO L225 Difference]: With dead ends: 53 [2019-10-22 09:00:36,236 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 09:00:36,237 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 09:00:36,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2019-10-22 09:00:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-22 09:00:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2019-10-22 09:00:36,252 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 6 [2019-10-22 09:00:36,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,253 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2019-10-22 09:00:36,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2019-10-22 09:00:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 09:00:36,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,254 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,254 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,254 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2019-10-22 09:00:36,255 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598534333] [2019-10-22 09:00:36,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:36,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598534333] [2019-10-22 09:00:36,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:36,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506981184] [2019-10-22 09:00:36,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:36,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:36,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,289 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2019-10-22 09:00:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,334 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2019-10-22 09:00:36,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:36,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 09:00:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,336 INFO L225 Difference]: With dead ends: 103 [2019-10-22 09:00:36,336 INFO L226 Difference]: Without dead ends: 60 [2019-10-22 09:00:36,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-22 09:00:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2019-10-22 09:00:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 09:00:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2019-10-22 09:00:36,343 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 6 [2019-10-22 09:00:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,344 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2019-10-22 09:00:36,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2019-10-22 09:00:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 09:00:36,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,344 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,345 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,345 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2019-10-22 09:00:36,345 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93515552] [2019-10-22 09:00:36,346 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,346 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:36,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93515552] [2019-10-22 09:00:36,364 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:00:36,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114060958] [2019-10-22 09:00:36,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:36,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:36,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,365 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand 3 states. [2019-10-22 09:00:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,401 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2019-10-22 09:00:36,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:36,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 09:00:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,403 INFO L225 Difference]: With dead ends: 58 [2019-10-22 09:00:36,403 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 09:00:36,403 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:36,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 09:00:36,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 09:00:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 09:00:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2019-10-22 09:00:36,410 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2019-10-22 09:00:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,411 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2019-10-22 09:00:36,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2019-10-22 09:00:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:00:36,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,411 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,412 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1361059094, now seen corresponding path program 1 times [2019-10-22 09:00:36,412 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476985031] [2019-10-22 09:00:36,413 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,413 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,444 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:36,444 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:36,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:36 BoogieIcfgContainer [2019-10-22 09:00:36,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:36,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:36,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:36,458 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:36,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:35" (3/4) ... [2019-10-22 09:00:36,461 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:36,497 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6a2ad7d8-7094-4c7b-83e3-52ee582ba51d/bin/uautomizer/witness.graphml [2019-10-22 09:00:36,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:36,500 INFO L168 Benchmark]: Toolchain (without parser) took 1785.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -97.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,501 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,502 INFO L168 Benchmark]: Boogie Preprocessor took 37.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,503 INFO L168 Benchmark]: RCFGBuilder took 371.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,504 INFO L168 Benchmark]: TraceAbstraction took 1013.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,504 INFO L168 Benchmark]: Witness Printer took 39.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,507 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 371.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1013.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 30]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a, b; [L14] a = __VERIFIER_nondet_int() [L15] b = __VERIFIER_nondet_int() [L16] COND TRUE a < 30 [L17] COND FALSE !(b < a) [L29] EXPR a + 2 [L29] a = a + 2 [L30] b - 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 12 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 119 SDslu, 40 SDs, 0 SdLazy, 161 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...