./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-aaron2_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-aaron2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/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 262119fe031682dae4d4b195fdfee00948012fb3 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:29:23,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:29:23,362 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:29:23,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:29:23,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:29:23,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:29:23,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:29:23,373 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:29:23,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:29:23,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:29:23,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:29:23,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:29:23,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:29:23,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:29:23,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:29:23,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:29:23,379 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:29:23,380 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:29:23,381 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:29:23,382 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:29:23,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:29:23,384 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:29:23,385 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:29:23,385 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:29:23,386 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:29:23,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:29:23,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:29:23,387 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:29:23,388 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:29:23,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:29:23,389 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:29:23,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:29:23,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:29:23,390 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:29:23,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:29:23,391 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:29:23,391 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 11:29:23,401 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:29:23,401 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:29:23,402 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:29:23,402 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:29:23,403 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:29:23,403 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:29:23,403 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:29:23,403 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:29:23,403 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:29:23,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 11:29:23,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:29:23,405 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:29:23,405 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:29:23,405 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:29:23,405 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:29:23,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:29:23,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:29:23,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:29:23,406 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/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 -> 262119fe031682dae4d4b195fdfee00948012fb3 [2018-11-10 11:29:23,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:29:23,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:29:23,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:29:23,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:29:23,441 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:29:23,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-aaron2_false-no-overflow.c [2018-11-10 11:29:23,484 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/data/ce0dc1da1/18d5c4b190914d7fb28b88463c3859cf/FLAG4ef80e382 [2018-11-10 11:29:23,884 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:29:23,884 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-aaron2_false-no-overflow.c [2018-11-10 11:29:23,888 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/data/ce0dc1da1/18d5c4b190914d7fb28b88463c3859cf/FLAG4ef80e382 [2018-11-10 11:29:23,897 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/data/ce0dc1da1/18d5c4b190914d7fb28b88463c3859cf [2018-11-10 11:29:23,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:29:23,900 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:29:23,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:29:23,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:29:23,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:29:23,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:29:23" (1/1) ... [2018-11-10 11:29:23,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62aafd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:23, skipping insertion in model container [2018-11-10 11:29:23,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:29:23" (1/1) ... [2018-11-10 11:29:23,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:29:23,926 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:29:24,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:29:24,025 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:29:24,033 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:29:24,042 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:29:24,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24 WrapperNode [2018-11-10 11:29:24,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:29:24,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:29:24,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:29:24,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:29:24,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... [2018-11-10 11:29:24,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:29:24,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:29:24,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:29:24,060 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:29:24,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/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 [2018-11-10 11:29:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:29:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:29:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:29:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 11:29:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:29:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:29:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:29:24,299 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:29:24,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:29:24 BoogieIcfgContainer [2018-11-10 11:29:24,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:29:24,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:29:24,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:29:24,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:29:24,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:29:23" (1/3) ... [2018-11-10 11:29:24,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:29:24, skipping insertion in model container [2018-11-10 11:29:24,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:29:24" (2/3) ... [2018-11-10 11:29:24,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:29:24, skipping insertion in model container [2018-11-10 11:29:24,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:29:24" (3/3) ... [2018-11-10 11:29:24,305 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-aaron2_false-no-overflow.c [2018-11-10 11:29:24,312 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:29:24,318 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-10 11:29:24,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-10 11:29:24,353 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:29:24,354 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:29:24,354 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:29:24,354 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:29:24,354 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:29:24,354 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:29:24,354 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:29:24,355 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:29:24,355 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:29:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-10 11:29:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 11:29:24,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:29:24,377 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:29:24,379 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:29:24,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:29:24,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1971392051, now seen corresponding path program 1 times [2018-11-10 11:29:24,385 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:29:24,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:29:24,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:29:24,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:29:24,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:29:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:29:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:29:24,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:29:24,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:29:24,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:29:24,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:29:24,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:29:24,522 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-10 11:29:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:29:24,582 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2018-11-10 11:29:24,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:29:24,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 11:29:24,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:29:24,590 INFO L225 Difference]: With dead ends: 55 [2018-11-10 11:29:24,590 INFO L226 Difference]: Without dead ends: 41 [2018-11-10 11:29:24,592 INFO L605 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 [2018-11-10 11:29:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-10 11:29:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2018-11-10 11:29:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 11:29:24,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-11-10 11:29:24,616 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 9 [2018-11-10 11:29:24,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:29:24,616 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-10 11:29:24,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:29:24,616 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-10 11:29:24,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 11:29:24,617 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:29:24,617 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:29:24,617 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:29:24,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:29:24,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1971392371, now seen corresponding path program 1 times [2018-11-10 11:29:24,618 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:29:24,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:29:24,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:29:24,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:29:24,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:29:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:29:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:29:24,640 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:29:24,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:29:24 BoogieIcfgContainer [2018-11-10 11:29:24,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:29:24,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:29:24,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:29:24,657 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:29:24,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:29:24" (3/4) ... [2018-11-10 11:29:24,660 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:29:24,686 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_31d4ac27-6fc8-4652-b4b1-bb8c5b6cd26a/bin-2019/uautomizer/witness.graphml [2018-11-10 11:29:24,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:29:24,686 INFO L168 Benchmark]: Toolchain (without parser) took 787.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:29:24,687 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:29:24,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.96 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:29:24,688 INFO L168 Benchmark]: Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:29:24,689 INFO L168 Benchmark]: RCFGBuilder took 239.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:29:24,689 INFO L168 Benchmark]: TraceAbstraction took 357.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:29:24,690 INFO L168 Benchmark]: Witness Printer took 28.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:29:24,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.96 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 239.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 357.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 28.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int tx = __VERIFIER_nondet_int(); [L13] int x = __VERIFIER_nondet_int(); [L14] int y = __VERIFIER_nondet_int(); [L15] COND TRUE x >= y && tx >= 0 [L16] COND FALSE !(__VERIFIER_nondet_int()) [L19] y + 1 VAL [tx=0, x=2147483647, y=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 18 SDslu, 19 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...