./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:53:00,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:53:00,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:53:00,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:53:00,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:53:00,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:53:00,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:53:00,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:53:00,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:53:00,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:53:00,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:53:00,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:53:00,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:53:00,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:53:00,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:53:00,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:53:00,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:53:00,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:53:00,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:53:00,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:53:00,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:53:00,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:53:00,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:53:00,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:53:00,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:53:00,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:53:00,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:53:00,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:53:00,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:53:00,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:53:00,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:53:00,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:53:00,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:53:00,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:53:00,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:53:00,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:53:00,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:53:00,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:53:00,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:53:00,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:53:00,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:53:00,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 19:53:00,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:53:00,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:53:00,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:53:00,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:53:00,173 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:53:00,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:53:00,174 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:53:00,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:53:00,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:53:00,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:53:00,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:53:00,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:53:00,176 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 19:53:00,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:53:00,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:53:00,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:53:00,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:53:00,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:53:00,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:53:00,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:53:00,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:00,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:53:00,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:53:00,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:53:00,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:53:00,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:53:00,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:53:00,181 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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2019-11-19 19:53:00,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:53:00,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:53:00,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:53:00,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:53:00,518 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:53:00,519 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 19:53:00,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fa6ce12/d11c30ae8814452bb5860f95184ddcb0/FLAG9e4bc00c0 [2019-11-19 19:53:01,006 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:53:01,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 19:53:01,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fa6ce12/d11c30ae8814452bb5860f95184ddcb0/FLAG9e4bc00c0 [2019-11-19 19:53:01,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fa6ce12/d11c30ae8814452bb5860f95184ddcb0 [2019-11-19 19:53:01,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:53:01,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:53:01,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:01,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:53:01,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:53:01,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67838e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01, skipping insertion in model container [2019-11-19 19:53:01,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,423 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:53:01,443 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:53:01,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:01,608 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:53:01,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:01,643 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:53:01,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01 WrapperNode [2019-11-19 19:53:01,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:01,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:01,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:53:01,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:53:01,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:01,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:53:01,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:53:01,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:53:01,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... [2019-11-19 19:53:01,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:53:01,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:53:01,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:53:01,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:53:01,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:53:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:53:01,958 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:53:01,958 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 19:53:01,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:01 BoogieIcfgContainer [2019-11-19 19:53:01,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:53:01,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:53:01,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:53:01,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:53:01,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:01" (1/3) ... [2019-11-19 19:53:01,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232f7b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:01, skipping insertion in model container [2019-11-19 19:53:01,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:01" (2/3) ... [2019-11-19 19:53:01,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232f7b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:01, skipping insertion in model container [2019-11-19 19:53:01,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:01" (3/3) ... [2019-11-19 19:53:01,968 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 19:53:01,975 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:53:01,980 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 19:53:01,990 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 19:53:02,015 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:53:02,015 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:53:02,016 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:53:02,016 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:53:02,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:53:02,017 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:53:02,017 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:53:02,017 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:53:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-19 19:53:02,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 19:53:02,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:02,039 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 19:53:02,040 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:02,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:02,045 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2019-11-19 19:53:02,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:02,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228322966] [2019-11-19 19:53:02,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:02,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228322966] [2019-11-19 19:53:02,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:02,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 19:53:02,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231185736] [2019-11-19 19:53:02,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:02,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:02,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:02,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:02,205 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-19 19:53:02,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:02,240 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-19 19:53:02,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:02,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 19:53:02,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:02,256 INFO L225 Difference]: With dead ends: 28 [2019-11-19 19:53:02,256 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 19:53:02,260 INFO L630 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 [2019-11-19 19:53:02,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 19:53:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-19 19:53:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 19:53:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-19 19:53:02,303 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-19 19:53:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:02,303 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-19 19:53:02,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-19 19:53:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 19:53:02,304 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:02,304 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 19:53:02,305 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:02,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:02,306 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-19 19:53:02,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:02,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097277429] [2019-11-19 19:53:02,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:02,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097277429] [2019-11-19 19:53:02,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:02,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:02,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342348030] [2019-11-19 19:53:02,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:02,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:02,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:02,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:02,376 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2019-11-19 19:53:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:02,411 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-11-19 19:53:02,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:53:02,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-19 19:53:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:02,413 INFO L225 Difference]: With dead ends: 11 [2019-11-19 19:53:02,413 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 19:53:02,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:53:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 19:53:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-19 19:53:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-19 19:53:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-19 19:53:02,420 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-11-19 19:53:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:02,421 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-19 19:53:02,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-19 19:53:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 19:53:02,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:02,422 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 19:53:02,423 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2019-11-19 19:53:02,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:02,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128612995] [2019-11-19 19:53:02,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:02,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128612995] [2019-11-19 19:53:02,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:02,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:02,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062480114] [2019-11-19 19:53:02,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:02,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:02,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:02,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:02,450 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-11-19 19:53:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:02,475 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-19 19:53:02,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:02,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 19:53:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:02,477 INFO L225 Difference]: With dead ends: 9 [2019-11-19 19:53:02,477 INFO L226 Difference]: Without dead ends: 8 [2019-11-19 19:53:02,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:02,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-19 19:53:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-19 19:53:02,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 19:53:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-19 19:53:02,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2019-11-19 19:53:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:02,482 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-19 19:53:02,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-19 19:53:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 19:53:02,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:02,483 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 19:53:02,483 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:02,484 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-19 19:53:02,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:02,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425027089] [2019-11-19 19:53:02,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:02,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425027089] [2019-11-19 19:53:02,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:02,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:02,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298899770] [2019-11-19 19:53:02,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:02,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:02,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:02,516 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-11-19 19:53:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:02,541 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-19 19:53:02,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:02,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 19:53:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:02,542 INFO L225 Difference]: With dead ends: 8 [2019-11-19 19:53:02,542 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 19:53:02,544 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 19:53:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 19:53:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 19:53:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 19:53:02,545 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-19 19:53:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:02,545 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:53:02,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:53:02,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 19:53:02,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 19:53:02,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 19:53:02,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 19:53:02,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-19 19:53:02,614 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= ULTIMATE.start_main_~j~0 2147483647) (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-19 19:53:02,614 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2019-11-19 19:53:02,614 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-19 19:53:02,614 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2019-11-19 19:53:02,614 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 19:53:02,614 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-19 19:53:02,615 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 19:53:02,615 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 19:53:02,615 INFO L440 ceAbstractionStarter]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2019-11-19 19:53:02,615 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-19 19:53:02,615 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-19 19:53:02,615 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-19 19:53:02,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:53:02 BoogieIcfgContainer [2019-11-19 19:53:02,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:53:02,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:53:02,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:53:02,632 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:53:02,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:01" (3/4) ... [2019-11-19 19:53:02,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 19:53:02,649 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 19:53:02,650 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 19:53:02,698 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:53:02,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:53:02,701 INFO L168 Benchmark]: Toolchain (without parser) took 1298.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -106.8 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,702 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:02,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,704 INFO L168 Benchmark]: Boogie Preprocessor took 19.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:02,705 INFO L168 Benchmark]: RCFGBuilder took 209.69 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,706 INFO L168 Benchmark]: TraceAbstraction took 671.01 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,707 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:02,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 83.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.67 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. * RCFGBuilder took 209.69 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 671.01 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((j <= 2147483647 && 1 <= i) && i <= 2147483647) && N <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 29 SDslu, 2 SDs, 0 SdLazy, 23 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 23 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...