./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f560e32afd5a40adf4a98abbf810cb377947c4f4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:50:53,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:50:53,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:50:53,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:50:53,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:50:53,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:50:53,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:50:53,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:50:53,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:50:53,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:50:53,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:50:53,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:50:53,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:50:53,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:50:53,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:50:53,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:50:53,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:50:53,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:50:53,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:50:53,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:50:53,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:50:53,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:50:53,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:50:53,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:50:53,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:50:54,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:50:54,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:50:54,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:50:54,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:50:54,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:50:54,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:50:54,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:50:54,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:50:54,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:50:54,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:50:54,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:50:54,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:50:54,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:50:54,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:50:54,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:50:54,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:50:54,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:50:54,040 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:50:54,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:50:54,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:50:54,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:50:54,043 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:50:54,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:50:54,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:50:54,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:50:54,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:50:54,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:50:54,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:50:54,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:50:54,046 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:50:54,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:50:54,047 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:50:54,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:50:54,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:50:54,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:50:54,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:50:54,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:50:54,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:50:54,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:50:54,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:50:54,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:50:54,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:50:54,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:50:54,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:50:54,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2019-11-28 02:50:54,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:50:54,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:50:54,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:50:54,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:50:54,377 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:50:54,377 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2019-11-28 02:50:54,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340f687ed/7a22c09c993d422bace33d0683ac9b51/FLAG55b0b7e44 [2019-11-28 02:50:54,938 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:50:54,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2019-11-28 02:50:54,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340f687ed/7a22c09c993d422bace33d0683ac9b51/FLAG55b0b7e44 [2019-11-28 02:50:55,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340f687ed/7a22c09c993d422bace33d0683ac9b51 [2019-11-28 02:50:55,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:50:55,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:50:55,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:55,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:50:55,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:50:55,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55, skipping insertion in model container [2019-11-28 02:50:55,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:50:55,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:50:55,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:55,609 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:50:55,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:55,636 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:50:55,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55 WrapperNode [2019-11-28 02:50:55,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:55,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:55,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:50:55,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:50:55,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:55,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:50:55,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:50:55,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:50:55,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... [2019-11-28 02:50:55,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:50:55,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:50:55,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:50:55,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:50:55,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:50:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:50:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:50:56,004 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:50:56,005 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:50:56,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:56 BoogieIcfgContainer [2019-11-28 02:50:56,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:50:56,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:50:56,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:50:56,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:50:56,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:50:55" (1/3) ... [2019-11-28 02:50:56,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec193a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:56, skipping insertion in model container [2019-11-28 02:50:56,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:55" (2/3) ... [2019-11-28 02:50:56,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec193a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:56, skipping insertion in model container [2019-11-28 02:50:56,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:56" (3/3) ... [2019-11-28 02:50:56,016 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2019-11-28 02:50:56,024 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:50:56,031 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:50:56,045 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:50:56,070 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:50:56,071 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:50:56,071 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:50:56,071 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:50:56,071 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:50:56,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:50:56,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:50:56,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:50:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-28 02:50:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:50:56,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:56,099 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:50:56,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:56,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:56,106 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-11-28 02:50:56,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:56,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241515622] [2019-11-28 02:50:56,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:56,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241515622] [2019-11-28 02:50:56,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:56,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:56,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61165063] [2019-11-28 02:50:56,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:50:56,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:56,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:50:56,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:50:56,331 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-28 02:50:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:56,537 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-28 02:50:56,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:50:56,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 02:50:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:56,554 INFO L225 Difference]: With dead ends: 29 [2019-11-28 02:50:56,555 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 02:50:56,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:50:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 02:50:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2019-11-28 02:50:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 02:50:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-28 02:50:56,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2019-11-28 02:50:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:56,606 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-28 02:50:56,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:50:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-28 02:50:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:50:56,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:56,608 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:50:56,610 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2019-11-28 02:50:56,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:56,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112184705] [2019-11-28 02:50:56,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:56,699 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112184705] [2019-11-28 02:50:56,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:56,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:56,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140627286] [2019-11-28 02:50:56,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:50:56,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:56,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:50:56,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:50:56,704 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2019-11-28 02:50:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:56,758 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-28 02:50:56,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:50:56,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 02:50:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:56,759 INFO L225 Difference]: With dead ends: 16 [2019-11-28 02:50:56,759 INFO L226 Difference]: Without dead ends: 15 [2019-11-28 02:50:56,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:50:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-28 02:50:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-28 02:50:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 02:50:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-28 02:50:56,765 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-28 02:50:56,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:56,766 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-28 02:50:56,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:50:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-28 02:50:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 02:50:56,767 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:56,767 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 02:50:56,767 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:56,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:56,767 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2019-11-28 02:50:56,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:56,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120944395] [2019-11-28 02:50:56,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:56,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120944395] [2019-11-28 02:50:56,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:56,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:56,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221862582] [2019-11-28 02:50:56,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:56,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:56,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:56,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:56,792 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-11-28 02:50:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:56,823 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-28 02:50:56,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:56,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 02:50:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:56,824 INFO L225 Difference]: With dead ends: 15 [2019-11-28 02:50:56,824 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 02:50:56,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 02:50:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-28 02:50:56,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 02:50:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-28 02:50:56,829 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 6 [2019-11-28 02:50:56,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:56,829 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 02:50:56,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:56,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-28 02:50:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 02:50:56,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:56,830 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 02:50:56,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:56,831 INFO L82 PathProgramCache]: Analyzing trace with hash 920236110, now seen corresponding path program 1 times [2019-11-28 02:50:56,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:56,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134186322] [2019-11-28 02:50:56,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:56,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134186322] [2019-11-28 02:50:56,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:56,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:56,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7142921] [2019-11-28 02:50:56,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:56,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:56,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:56,858 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-28 02:50:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:56,898 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2019-11-28 02:50:56,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:56,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 02:50:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:56,900 INFO L225 Difference]: With dead ends: 25 [2019-11-28 02:50:56,900 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 02:50:56,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:56,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 02:50:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 02:50:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 02:50:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-28 02:50:56,906 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-11-28 02:50:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:56,907 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-28 02:50:56,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-28 02:50:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:50:56,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:56,908 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-28 02:50:56,909 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:56,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:56,909 INFO L82 PathProgramCache]: Analyzing trace with hash -22254369, now seen corresponding path program 1 times [2019-11-28 02:50:56,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:56,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451842069] [2019-11-28 02:50:56,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:56,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451842069] [2019-11-28 02:50:56,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878702878] [2019-11-28 02:50:56,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:50:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:57,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 02:50:57,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:50:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:57,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 02:50:57,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2019-11-28 02:50:57,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594735551] [2019-11-28 02:50:57,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:50:57,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:57,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:50:57,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:50:57,143 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2019-11-28 02:50:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:57,222 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-28 02:50:57,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:50:57,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 02:50:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:57,225 INFO L225 Difference]: With dead ends: 16 [2019-11-28 02:50:57,226 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:50:57,227 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:50:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:50:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:50:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:50:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:50:57,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-28 02:50:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:57,229 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:50:57,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:50:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:50:57,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:50:57,431 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:50:57,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:50:57,536 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-28 02:50:57,537 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:50:57,537 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:50:57,537 INFO L242 CegarLoopResult]: At program point L27(lines 13 28) the Hoare annotation is: (<= ULTIMATE.start_main_~m~0 2147483647) [2019-11-28 02:50:57,537 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-28 02:50:57,538 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-28 02:50:57,538 INFO L246 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-28 02:50:57,538 INFO L246 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-11-28 02:50:57,538 INFO L246 CegarLoopResult]: For program point L17(lines 17 26) no Hoare annotation was computed. [2019-11-28 02:50:57,538 INFO L246 CegarLoopResult]: For program point L17-1(lines 17 26) no Hoare annotation was computed. [2019-11-28 02:50:57,539 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-28 02:50:57,539 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:50:57,539 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:50:57,539 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:50:57,540 INFO L246 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2019-11-28 02:50:57,540 INFO L242 CegarLoopResult]: At program point L20-2(lines 19 25) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse1 (< 0 ULTIMATE.start_main_~m~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~i~0 2147483647)) (and .cse0 (<= ULTIMATE.start_main_~m~0 2147483647) (<= (+ ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~i~0) 2147483647) .cse1))) [2019-11-28 02:50:57,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:50:57 BoogieIcfgContainer [2019-11-28 02:50:57,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:50:57,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:50:57,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:50:57,559 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:50:57,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:56" (3/4) ... [2019-11-28 02:50:57,563 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:50:57,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:50:57,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:50:57,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:50:57,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:50:57,635 INFO L168 Benchmark]: Toolchain (without parser) took 2256.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 951.0 MB in the beginning and 974.7 MB in the end (delta: -23.7 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,635 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:50:57,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,637 INFO L168 Benchmark]: Boogie Preprocessor took 20.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,638 INFO L168 Benchmark]: RCFGBuilder took 259.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,639 INFO L168 Benchmark]: TraceAbstraction took 1549.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.7 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:57,639 INFO L168 Benchmark]: Witness Printer took 73.50 ms. Allocated memory is still 1.1 GB. Free memory is still 974.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:50:57,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 259.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1549.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.7 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.50 ms. Allocated memory is still 1.1 GB. Free memory is still 974.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: m <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((n <= 2147483647 && 0 < m) && m <= i) && i <= 2147483647) || (((n <= 2147483647 && m <= 2147483647) && m + i <= 2147483647) && 0 < m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 19 SDtfs, 59 SDslu, 3 SDs, 0 SdLazy, 84 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 32 HoareAnnotationTreeSize, 2 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 940 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 3/6 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 correct! Received shutdown request...