./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/gcd_3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46c6e353922721c0838b7fb617ab086256b6c516 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:29:22,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:29:22,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:29:22,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:29:22,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:29:22,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:29:22,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:29:22,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:29:22,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:29:22,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:29:22,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:29:22,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:29:22,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:29:22,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:29:22,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:29:22,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:29:22,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:29:22,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:29:22,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:29:22,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:29:22,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:29:22,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:29:22,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:29:22,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:29:22,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:29:22,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:29:22,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:29:22,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:29:22,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:29:22,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:29:22,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:29:22,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:29:22,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:29:22,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:29:22,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:29:22,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:29:22,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:29:22,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:29:22,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:29:22,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:29:22,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:29:22,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-20 06:29:22,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:29:22,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:29:22,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:29:22,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:29:22,401 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:29:22,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:29:22,402 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:29:22,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:29:22,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:29:22,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:29:22,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:29:22,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:29:22,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:29:22,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:29:22,404 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:29:22,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:29:22,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:29:22,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:29:22,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:29:22,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:29:22,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:29:22,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:29:22,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:29:22,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:22,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:29:22,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:29:22,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:29:22,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:29:22,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:29:22,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:29:22,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:29:22,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46c6e353922721c0838b7fb617ab086256b6c516 [2020-10-20 06:29:22,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:29:22,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:29:22,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:29:22,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:29:22,614 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:29:22,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/gcd_3.c [2020-10-20 06:29:22,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c198f6a/fecd62073c984ea18e333397083ef2fe/FLAGc18cdeaa0 [2020-10-20 06:29:23,120 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:29:23,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/gcd_3.c [2020-10-20 06:29:23,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c198f6a/fecd62073c984ea18e333397083ef2fe/FLAGc18cdeaa0 [2020-10-20 06:29:23,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c198f6a/fecd62073c984ea18e333397083ef2fe [2020-10-20 06:29:23,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:29:23,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:29:23,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:23,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:29:23,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:29:23,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e54773c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23, skipping insertion in model container [2020-10-20 06:29:23,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:29:23,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:29:23,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:23,828 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:29:23,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:23,860 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:29:23,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23 WrapperNode [2020-10-20 06:29:23,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:23,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:23,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:29:23,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:29:23,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:23,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:29:23,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:29:23,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:29:23,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (1/1) ... [2020-10-20 06:29:23,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:29:23,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:29:23,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:29:23,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:29:23,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (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 [2020-10-20 06:29:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:29:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:29:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:29:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:29:24,233 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:29:24,233 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-20 06:29:24,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:24 BoogieIcfgContainer [2020-10-20 06:29:24,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:29:24,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:29:24,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:29:24,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:29:24,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:29:23" (1/3) ... [2020-10-20 06:29:24,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:24, skipping insertion in model container [2020-10-20 06:29:24,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:23" (2/3) ... [2020-10-20 06:29:24,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:24, skipping insertion in model container [2020-10-20 06:29:24,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:24" (3/3) ... [2020-10-20 06:29:24,260 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3.c [2020-10-20 06:29:24,277 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:29:24,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 06:29:24,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 06:29:24,337 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:29:24,337 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:29:24,337 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:29:24,338 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:29:24,338 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:29:24,338 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:29:24,338 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:29:24,338 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:29:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-20 06:29:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:29:24,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:29:24,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,373 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 06:29:24,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220357269] [2020-10-20 06:29:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:24,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220357269] [2020-10-20 06:29:24,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:24,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:29:24,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371012692] [2020-10-20 06:29:24,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:24,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:24,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:24,601 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2020-10-20 06:29:24,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,712 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-10-20 06:29:24,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:24,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:29:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,725 INFO L225 Difference]: With dead ends: 42 [2020-10-20 06:29:24,725 INFO L226 Difference]: Without dead ends: 11 [2020-10-20 06:29:24,729 INFO L677 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 [2020-10-20 06:29:24,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-20 06:29:24,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-20 06:29:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 06:29:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-10-20 06:29:24,760 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2020-10-20 06:29:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,760 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-10-20 06:29:24,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-10-20 06:29:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:29:24,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:29:24,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:29:24,763 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,763 INFO L82 PathProgramCache]: Analyzing trace with hash 28693763, now seen corresponding path program 1 times [2020-10-20 06:29:24,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188445975] [2020-10-20 06:29:24,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:24,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188445975] [2020-10-20 06:29:24,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:24,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:29:24,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96939712] [2020-10-20 06:29:24,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:24,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:24,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:24,818 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2020-10-20 06:29:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,831 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-10-20 06:29:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:24,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:29:24,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,833 INFO L225 Difference]: With dead ends: 11 [2020-10-20 06:29:24,834 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 06:29:24,835 INFO L677 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 [2020-10-20 06:29:24,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 06:29:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 06:29:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 06:29:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-10-20 06:29:24,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-10-20 06:29:24,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,839 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-10-20 06:29:24,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-10-20 06:29:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:29:24,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:29:24,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:29:24,841 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,842 INFO L82 PathProgramCache]: Analyzing trace with hash 28699785, now seen corresponding path program 1 times [2020-10-20 06:29:24,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832495754] [2020-10-20 06:29:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:24,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832495754] [2020-10-20 06:29:24,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:24,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:29:24,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783975443] [2020-10-20 06:29:24,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:24,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:24,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:24,918 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-10-20 06:29:24,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,927 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-10-20 06:29:24,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:24,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:29:24,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,929 INFO L225 Difference]: With dead ends: 10 [2020-10-20 06:29:24,929 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 06:29:24,930 INFO L677 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 [2020-10-20 06:29:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 06:29:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 06:29:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 06:29:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-20 06:29:24,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2020-10-20 06:29:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,933 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-20 06:29:24,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-20 06:29:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 06:29:24,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:29:24,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:29:24,935 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,936 INFO L82 PathProgramCache]: Analyzing trace with hash 889693384, now seen corresponding path program 1 times [2020-10-20 06:29:24,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725071258] [2020-10-20 06:29:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:24,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725071258] [2020-10-20 06:29:24,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:24,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:29:24,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128672564] [2020-10-20 06:29:24,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:24,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:24,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:24,975 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2020-10-20 06:29:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,983 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-10-20 06:29:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:24,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 06:29:24,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,985 INFO L225 Difference]: With dead ends: 9 [2020-10-20 06:29:24,985 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:29:24,986 INFO L677 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 [2020-10-20 06:29:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:29:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:29:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:29:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:29:24,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-20 06:29:24,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,987 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:29:24,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:29:24,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:29:24,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:29:24,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:29:25,010 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-10-20 06:29:25,011 INFO L274 CegarLoopResult]: For program point L19-1(lines 13 25) no Hoare annotation was computed. [2020-10-20 06:29:25,011 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2020-10-20 06:29:25,011 INFO L277 CegarLoopResult]: At program point L40(lines 28 41) the Hoare annotation is: true [2020-10-20 06:29:25,012 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-20 06:29:25,012 INFO L274 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-10-20 06:29:25,012 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 06:29:25,012 INFO L277 CegarLoopResult]: At program point L36-1(lines 36 38) the Hoare annotation is: true [2020-10-20 06:29:25,012 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 06:29:25,012 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L277 CegarLoopResult]: At program point L24(lines 12 25) the Hoare annotation is: true [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-20 06:29:25,013 INFO L274 CegarLoopResult]: For program point L16-4(lines 13 25) no Hoare annotation was computed. [2020-10-20 06:29:25,014 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-20 06:29:25,014 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-20 06:29:25,014 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:29:25,017 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-20 06:29:25,017 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-10-20 06:29:25,017 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-10-20 06:29:25,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:29:25 BoogieIcfgContainer [2020-10-20 06:29:25,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:29:25,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:29:25,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:29:25,036 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:29:25,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:24" (3/4) ... [2020-10-20 06:29:25,043 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:29:25,063 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 06:29:25,063 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 06:29:25,063 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:29:25,064 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:29:25,117 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:29:25,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:29:25,120 INFO L168 Benchmark]: Toolchain (without parser) took 1616.75 ms. Allocated memory was 37.2 MB in the beginning and 49.3 MB in the end (delta: 12.1 MB). Free memory was 19.6 MB in the beginning and 16.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,121 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 34.6 MB. Free memory was 11.7 MB in the beginning and 11.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.76 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.7 MB in the beginning and 27.3 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 45.1 MB. Free memory was 27.3 MB in the beginning and 25.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,123 INFO L168 Benchmark]: Boogie Preprocessor took 22.22 ms. Allocated memory is still 45.1 MB. Free memory was 25.4 MB in the beginning and 24.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,124 INFO L168 Benchmark]: RCFGBuilder took 314.09 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 24.1 MB in the beginning and 22.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,125 INFO L168 Benchmark]: TraceAbstraction took 797.28 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 22.0 MB in the beginning and 19.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,125 INFO L168 Benchmark]: Witness Printer took 82.37 ms. Allocated memory is still 49.3 MB. Free memory was 19.9 MB in the beginning and 16.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:25,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 34.6 MB. Free memory was 11.7 MB in the beginning and 11.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 351.76 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.7 MB in the beginning and 27.3 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 45.1 MB. Free memory was 27.3 MB in the beginning and 25.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.22 ms. Allocated memory is still 45.1 MB. Free memory was 25.4 MB in the beginning and 24.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 314.09 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 24.1 MB in the beginning and 22.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 797.28 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 22.0 MB in the beginning and 19.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * Witness Printer took 82.37 ms. Allocated memory is still 49.3 MB. Free memory was 19.9 MB in the beginning and 16.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 24 SDslu, 21 SDs, 0 SdLazy, 19 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...