./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:33:48,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:33:48,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:33:48,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:33:48,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:33:48,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:33:48,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:33:48,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:33:48,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:33:48,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:33:48,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:33:48,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:33:48,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:33:48,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:33:48,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:33:48,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:33:48,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:33:48,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:33:48,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:33:48,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:33:48,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:33:48,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:33:48,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:33:48,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:33:48,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:33:48,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:33:48,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:33:48,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:33:48,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:33:48,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:33:48,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:33:48,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:33:48,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:33:48,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:33:48,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:33:48,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:33:48,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:33:48,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:33:48,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:33:48,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:33:48,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:33:48,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 10:33:48,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:33:48,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:33:48,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:33:48,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:33:48,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:33:48,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:33:48,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:33:48,535 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 10:33:48,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:33:48,535 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:33:48,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:33:48,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:33:48,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:33:48,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:33:48,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:33:48,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:33:48,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:33:48,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2019-12-07 10:33:48,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:33:48,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:33:48,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:33:48,648 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:33:48,648 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:33:48,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-12-07 10:33:48,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/data/2ff026632/58bc29bd21ef46cfb9291d1953adcba0/FLAG91c4c0001 [2019-12-07 10:33:49,136 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:33:49,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-12-07 10:33:49,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/data/2ff026632/58bc29bd21ef46cfb9291d1953adcba0/FLAG91c4c0001 [2019-12-07 10:33:49,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/data/2ff026632/58bc29bd21ef46cfb9291d1953adcba0 [2019-12-07 10:33:49,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:33:49,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:33:49,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:33:49,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:33:49,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:33:49,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49, skipping insertion in model container [2019-12-07 10:33:49,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:33:49,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:33:49,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:33:49,282 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:33:49,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:33:49,338 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:33:49,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49 WrapperNode [2019-12-07 10:33:49,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:33:49,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:33:49,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:33:49,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:33:49,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:33:49,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:33:49,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:33:49,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:33:49,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... [2019-12-07 10:33:49,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:33:49,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:33:49,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:33:49,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:33:49,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:33:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:33:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:33:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:33:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:33:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:33:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:33:49,520 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:33:49,521 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 10:33:49,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:33:49 BoogieIcfgContainer [2019-12-07 10:33:49,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:33:49,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:33:49,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:33:49,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:33:49,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:33:49" (1/3) ... [2019-12-07 10:33:49,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea67e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:33:49, skipping insertion in model container [2019-12-07 10:33:49,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:33:49" (2/3) ... [2019-12-07 10:33:49,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea67e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:33:49, skipping insertion in model container [2019-12-07 10:33:49,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:33:49" (3/3) ... [2019-12-07 10:33:49,528 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2019-12-07 10:33:49,536 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:33:49,541 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 10:33:49,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 10:33:49,565 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:33:49,565 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:33:49,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:33:49,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:33:49,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:33:49,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:33:49,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:33:49,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:33:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 10:33:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:33:49,578 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:33:49,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:33:49,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:33:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:33:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2019-12-07 10:33:49,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:33:49,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013326202] [2019-12-07 10:33:49,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:33:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:33:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:33:49,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013326202] [2019-12-07 10:33:49,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:33:49,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:33:49,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974288443] [2019-12-07 10:33:49,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:33:49,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:33:49,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:33:49,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:33:49,726 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-12-07 10:33:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:33:49,771 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-12-07 10:33:49,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:33:49,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-12-07 10:33:49,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:33:49,779 INFO L225 Difference]: With dead ends: 16 [2019-12-07 10:33:49,779 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 10:33:49,781 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:33:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 10:33:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 10:33:49,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:33:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 10:33:49,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-12-07 10:33:49,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:33:49,804 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 10:33:49,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:33:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 10:33:49,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 10:33:49,805 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:33:49,805 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:33:49,805 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:33:49,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:33:49,806 INFO L82 PathProgramCache]: Analyzing trace with hash 889571241, now seen corresponding path program 1 times [2019-12-07 10:33:49,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:33:49,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279832531] [2019-12-07 10:33:49,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:33:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:33:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:33:49,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279832531] [2019-12-07 10:33:49,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:33:49,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:33:49,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744190946] [2019-12-07 10:33:49,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:33:49,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:33:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:33:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:33:49,837 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-12-07 10:33:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:33:49,848 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-12-07 10:33:49,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:33:49,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 10:33:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:33:49,849 INFO L225 Difference]: With dead ends: 7 [2019-12-07 10:33:49,849 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:33:49,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:33:49,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:33:49,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:33:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:33:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:33:49,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-12-07 10:33:49,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:33:49,850 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:33:49,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:33:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:33:49,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:33:49,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 10:33:49,861 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-12-07 10:33:49,861 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 10:33:49,861 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L249 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: true [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 16) no Hoare annotation was computed. [2019-12-07 10:33:49,862 INFO L242 CegarLoopResult]: At program point L13-3(lines 13 16) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| 8)) 2147483647) [2019-12-07 10:33:49,862 INFO L246 CegarLoopResult]: For program point L13-4(lines 13 16) no Hoare annotation was computed. [2019-12-07 10:33:49,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:33:49,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:33:49,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:33:49 BoogieIcfgContainer [2019-12-07 10:33:49,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:33:49,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:33:49,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:33:49,874 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:33:49,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:33:49" (3/4) ... [2019-12-07 10:33:49,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:33:49,883 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 10:33:49,883 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 10:33:49,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:33:49,910 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4d22d2cc-bf9a-4481-a443-888a5a53564b/bin/uautomizer/witness.graphml [2019-12-07 10:33:49,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:33:49,911 INFO L168 Benchmark]: Toolchain (without parser) took 756.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -92.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:33:49,912 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:33:49,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:33:49,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:33:49,913 INFO L168 Benchmark]: Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:33:49,913 INFO L168 Benchmark]: RCFGBuilder took 147.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:33:49,913 INFO L168 Benchmark]: TraceAbstraction took 351.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:33:49,914 INFO L168 Benchmark]: Witness Printer took 35.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:33:49,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 147.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 351.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Witness Printer took 35.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant [2019-12-07 10:33:49,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:33:49,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[a][a + 8] <= 2147483647 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 9 SDs, 0 SdLazy, 28 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, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...