./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.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_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:13:36,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:13:36,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:13:36,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:13:36,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:13:36,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:13:36,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:13:36,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:13:36,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:13:36,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:13:36,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:13:36,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:13:36,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:13:36,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:13:36,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:13:36,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:13:36,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:13:36,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:13:36,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:13:36,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:13:36,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:13:36,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:13:36,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:13:36,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:13:36,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:13:36,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:13:36,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:13:36,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:13:36,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:13:36,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:13:36,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:13:36,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:13:36,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:13:36,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:13:36,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:13:36,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:13:36,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:13:36,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:13:36,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:13:36,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:13:36,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:13:36,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 18:13:36,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:13:36,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:13:36,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:13:36,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:13:36,603 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:13:36,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:13:36,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:13:36,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:13:36,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:13:36,604 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:13:36,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:13:36,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:13:36,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:13:36,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:13:36,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:13:36,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:13:36,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:13:36,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:13:36,606 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_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/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 -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2019-12-07 18:13:36,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:13:36,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:13:36,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:13:36,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:13:36,718 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:13:36,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-12-07 18:13:36,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/data/116e1c73e/c5e28b0e69f04ea2b18d1ed4509f3370/FLAG1d5b202a6 [2019-12-07 18:13:37,185 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:13:37,185 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-12-07 18:13:37,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/data/116e1c73e/c5e28b0e69f04ea2b18d1ed4509f3370/FLAG1d5b202a6 [2019-12-07 18:13:37,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/data/116e1c73e/c5e28b0e69f04ea2b18d1ed4509f3370 [2019-12-07 18:13:37,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:13:37,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:13:37,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:13:37,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:13:37,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:13:37,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc7a4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37, skipping insertion in model container [2019-12-07 18:13:37,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:13:37,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:13:37,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:13:37,323 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:13:37,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:13:37,382 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:13:37,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37 WrapperNode [2019-12-07 18:13:37,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:13:37,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:13:37,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:13:37,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:13:37,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:13:37,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:13:37,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:13:37,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:13:37,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... [2019-12-07 18:13:37,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:13:37,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:13:37,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:13:37,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:13:37,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/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 18:13:37,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:13:37,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:13:37,571 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:13:37,571 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:13:37,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:37 BoogieIcfgContainer [2019-12-07 18:13:37,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:13:37,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:13:37,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:13:37,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:13:37,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:13:37" (1/3) ... [2019-12-07 18:13:37,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e387f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:13:37, skipping insertion in model container [2019-12-07 18:13:37,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:37" (2/3) ... [2019-12-07 18:13:37,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e387f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:13:37, skipping insertion in model container [2019-12-07 18:13:37,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:37" (3/3) ... [2019-12-07 18:13:37,577 INFO L109 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-12-07 18:13:37,583 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:13:37,587 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 18:13:37,594 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 18:13:37,610 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:13:37,610 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:13:37,610 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:13:37,610 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:13:37,610 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:13:37,610 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:13:37,611 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:13:37,611 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:13:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 18:13:37,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 18:13:37,624 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:13:37,625 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 18:13:37,625 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:13:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:37,629 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 18:13:37,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:37,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350124176] [2019-12-07 18:13:37,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:37,726 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 18:13:37,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350124176] [2019-12-07 18:13:37,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:37,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:13:37,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589695395] [2019-12-07 18:13:37,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:13:37,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:37,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:13:37,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:13:37,747 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2019-12-07 18:13:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:37,793 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-12-07 18:13:37,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:13:37,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 18:13:37,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:13:37,800 INFO L225 Difference]: With dead ends: 30 [2019-12-07 18:13:37,801 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 18:13:37,802 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:13:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 18:13:37,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 18:13:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:13:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-12-07 18:13:37,824 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2019-12-07 18:13:37,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:13:37,824 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-12-07 18:13:37,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:13:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-12-07 18:13:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:13:37,825 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:13:37,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:13:37,825 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:13:37,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:37,825 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 18:13:37,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:37,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916737414] [2019-12-07 18:13:37,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:37,841 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 18:13:37,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916737414] [2019-12-07 18:13:37,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:37,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:13:37,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416592149] [2019-12-07 18:13:37,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:13:37,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:37,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:13:37,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:13:37,844 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2019-12-07 18:13:37,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:37,879 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-12-07 18:13:37,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:13:37,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 18:13:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:13:37,880 INFO L225 Difference]: With dead ends: 16 [2019-12-07 18:13:37,880 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 18:13:37,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:13:37,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 18:13:37,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 18:13:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:13:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-12-07 18:13:37,883 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-12-07 18:13:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:13:37,883 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-12-07 18:13:37,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:13:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-12-07 18:13:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 18:13:37,883 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:13:37,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:13:37,884 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:13:37,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:37,884 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-12-07 18:13:37,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:37,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667116892] [2019-12-07 18:13:37,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:37,897 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 18:13:37,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667116892] [2019-12-07 18:13:37,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:37,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:13:37,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079448330] [2019-12-07 18:13:37,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:13:37,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:37,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:13:37,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:13:37,899 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2019-12-07 18:13:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:37,921 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-12-07 18:13:37,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:13:37,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 18:13:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:13:37,922 INFO L225 Difference]: With dead ends: 20 [2019-12-07 18:13:37,922 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 18:13:37,922 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:13:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 18:13:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 18:13:37,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:13:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-12-07 18:13:37,925 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2019-12-07 18:13:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:13:37,925 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-12-07 18:13:37,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:13:37,926 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-12-07 18:13:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:13:37,926 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:13:37,926 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:37,926 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:13:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2019-12-07 18:13:37,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:37,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841806876] [2019-12-07 18:13:37,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:37,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841806876] [2019-12-07 18:13:37,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978744642] [2019-12-07 18:13:37,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:13:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:38,000 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:13:38,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:38,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:38,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:38,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:13:38,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2019-12-07 18:13:38,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506314309] [2019-12-07 18:13:38,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:13:38,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:38,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:13:38,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:13:38,097 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 9 states. [2019-12-07 18:13:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:38,151 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-12-07 18:13:38,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:13:38,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-12-07 18:13:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:13:38,152 INFO L225 Difference]: With dead ends: 18 [2019-12-07 18:13:38,152 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:13:38,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:13:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:13:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:13:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:13:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:13:38,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-07 18:13:38,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:13:38,153 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:13:38,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:13:38,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:13:38,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:13:38,354 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:13:38,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:13:38,450 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-12-07 18:13:38,450 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:13:38,450 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,451 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,451 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-12-07 18:13:38,451 INFO L246 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-12-07 18:13:38,451 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-12-07 18:13:38,451 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,452 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:13:38,452 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,452 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:13:38,452 INFO L249 CegarLoopResult]: At program point L18(lines 11 19) the Hoare annotation is: true [2019-12-07 18:13:38,453 INFO L246 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,453 INFO L246 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,453 INFO L246 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,453 INFO L246 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2019-12-07 18:13:38,453 INFO L242 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~y~0 2))) (or (and (<= 2 ULTIMATE.start_main_~y~0) .cse0 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483645))) (and (exists ((v_ULTIMATE.start_main_~y~0_17 Int)) (let ((.cse1 (+ v_ULTIMATE.start_main_~y~0_17 1))) (and (<= 0 .cse1) (<= (+ v_ULTIMATE.start_main_~y~0_17 ULTIMATE.start_main_~x~0) 2147483647) (<= (div .cse1 2) ULTIMATE.start_main_~y~0) (<= 2 v_ULTIMATE.start_main_~y~0_17)))) .cse0))) [2019-12-07 18:13:38,454 INFO L246 CegarLoopResult]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2019-12-07 18:13:38,465 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,466 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,474 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:13:38 BoogieIcfgContainer [2019-12-07 18:13:38,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:13:38,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:13:38,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:13:38,478 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:13:38,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:37" (3/4) ... [2019-12-07 18:13:38,481 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:13:38,489 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:13:38,489 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:13:38,508 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= y && y <= 2) && x <= y + 2147483645) || ((\exists v_ULTIMATE.start_main_~y~0_17 : int :: ((0 <= v_ULTIMATE.start_main_~y~0_17 + 1 && v_ULTIMATE.start_main_~y~0_17 + x <= 2147483647) && (v_ULTIMATE.start_main_~y~0_17 + 1) / 2 <= y) && 2 <= v_ULTIMATE.start_main_~y~0_17) && y <= 2) [2019-12-07 18:13:38,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b1163ec8-a3ff-4fc8-a15b-ca9037258a34/bin/uautomizer/witness.graphml [2019-12-07 18:13:38,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:13:38,518 INFO L168 Benchmark]: Toolchain (without parser) took 1317.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.7 MB in the beginning and 987.5 MB in the end (delta: -42.8 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:38,518 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:13:38,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:38,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.04 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 18:13:38,519 INFO L168 Benchmark]: Boogie Preprocessor took 14.12 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 18:13:38,519 INFO L168 Benchmark]: RCFGBuilder took 152.26 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 18:13:38,520 INFO L168 Benchmark]: TraceAbstraction took 904.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.9 MB in the end (delta: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:38,520 INFO L168 Benchmark]: Witness Printer took 38.67 ms. Allocated memory is still 1.1 GB. Free memory was 992.9 MB in the beginning and 987.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:38,522 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.04 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 14.12 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. * RCFGBuilder took 152.26 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 904.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.9 MB in the end (delta: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.67 ms. Allocated memory is still 1.1 GB. Free memory was 992.9 MB in the beginning and 987.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2019-12-07 18:13:38,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-12-07 18:13:38,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] Derived loop invariant: ((2 <= y && y <= 2) && x <= y + 2147483645) || ((\exists v_ULTIMATE.start_main_~y~0_17 : int :: ((0 <= v_ULTIMATE.start_main_~y~0_17 + 1 && v_ULTIMATE.start_main_~y~0_17 + x <= 2147483647) && (v_ULTIMATE.start_main_~y~0_17 + 1) / 2 <= y) && 2 <= v_ULTIMATE.start_main_~y~0_17) && y <= 2) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 30 SDslu, 4 SDs, 0 SdLazy, 86 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 40 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 2 QuantifiedInterpolants, 1646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/4 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...