./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.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_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/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 e153b2922c94b2bcf8f70f9e86faabd543aefaed ................................................................................................................................................................................................................................................................................................................................................. 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 13:35:13,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:35:13,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:35:13,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:35:13,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:35:13,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:35:13,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:35:13,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:35:13,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:35:13,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:35:13,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:35:13,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:35:13,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:35:13,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:35:13,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:35:13,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:35:13,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:35:13,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:35:13,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:35:13,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:35:13,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:35:13,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:35:13,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:35:13,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:35:13,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:35:13,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:35:13,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:35:13,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:35:13,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:35:13,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:35:13,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:35:13,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:35:13,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:35:13,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:35:13,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:35:13,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:35:13,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:35:13,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:35:13,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:35:13,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:35:13,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:35:13,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 13:35:13,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:35:13,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:35:13,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:35:13,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:35:13,666 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:35:13,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:35:13,667 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:35:13,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:35:13,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:35:13,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:35:13,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:35:13,670 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_a150b40b-4e01-46d8-a66c-e0fc4f454037/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 -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2019-12-07 13:35:13,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:35:13,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:35:13,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:35:13,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:35:13,795 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:35:13,795 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-12-07 13:35:13,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/data/fb6b27da3/5ed7ee437ecd4b93813272366ee1ebad/FLAG65aa41e19 [2019-12-07 13:35:14,161 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:35:14,162 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-12-07 13:35:14,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/data/fb6b27da3/5ed7ee437ecd4b93813272366ee1ebad/FLAG65aa41e19 [2019-12-07 13:35:14,174 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/data/fb6b27da3/5ed7ee437ecd4b93813272366ee1ebad [2019-12-07 13:35:14,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:35:14,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:35:14,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:35:14,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:35:14,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:35:14,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14, skipping insertion in model container [2019-12-07 13:35:14,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:35:14,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:35:14,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:35:14,293 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:35:14,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:35:14,342 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:35:14,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14 WrapperNode [2019-12-07 13:35:14,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:35:14,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:35:14,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:35:14,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:35:14,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:35:14,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:35:14,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:35:14,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:35:14,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... [2019-12-07 13:35:14,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:35:14,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:35:14,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:35:14,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:35:14,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/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 13:35:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:35:14,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:35:14,520 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:35:14,520 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 13:35:14,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:35:14 BoogieIcfgContainer [2019-12-07 13:35:14,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:35:14,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:35:14,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:35:14,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:35:14,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:35:14" (1/3) ... [2019-12-07 13:35:14,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d9ddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:35:14, skipping insertion in model container [2019-12-07 13:35:14,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:35:14" (2/3) ... [2019-12-07 13:35:14,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d9ddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:35:14, skipping insertion in model container [2019-12-07 13:35:14,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:35:14" (3/3) ... [2019-12-07 13:35:14,525 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-12-07 13:35:14,532 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:35:14,536 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 13:35:14,543 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 13:35:14,558 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:35:14,558 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:35:14,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:35:14,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:35:14,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:35:14,559 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:35:14,559 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:35:14,559 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:35:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 13:35:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 13:35:14,572 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:35:14,572 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 13:35:14,573 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 13:35:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:35:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-12-07 13:35:14,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:35:14,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311369627] [2019-12-07 13:35:14,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:35:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:35:14,667 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 13:35:14,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311369627] [2019-12-07 13:35:14,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:35:14,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 13:35:14,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584495416] [2019-12-07 13:35:14,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:35:14,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:35:14,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:35:14,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:35:14,687 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-12-07 13:35:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:35:14,725 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-12-07 13:35:14,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:35:14,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 13:35:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:35:14,733 INFO L225 Difference]: With dead ends: 27 [2019-12-07 13:35:14,733 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 13:35:14,735 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 13:35:14,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 13:35:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-12-07 13:35:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:35:14,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 13:35:14,758 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2019-12-07 13:35:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:35:14,759 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 13:35:14,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:35:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-07 13:35:14,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 13:35:14,759 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:35:14,759 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 13:35:14,760 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 13:35:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:35:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-12-07 13:35:14,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:35:14,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497813315] [2019-12-07 13:35:14,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:35:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:35:14,773 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 13:35:14,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497813315] [2019-12-07 13:35:14,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:35:14,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 13:35:14,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559009417] [2019-12-07 13:35:14,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:35:14,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:35:14,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:35:14,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:35:14,776 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-12-07 13:35:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:35:14,792 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-12-07 13:35:14,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:35:14,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 13:35:14,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:35:14,793 INFO L225 Difference]: With dead ends: 15 [2019-12-07 13:35:14,793 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 13:35:14,793 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 13:35:14,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 13:35:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 13:35:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 13:35:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-12-07 13:35:14,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-12-07 13:35:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:35:14,796 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-12-07 13:35:14,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:35:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-12-07 13:35:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:35:14,796 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:35:14,796 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2019-12-07 13:35:14,797 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 13:35:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:35:14,797 INFO L82 PathProgramCache]: Analyzing trace with hash 784501312, now seen corresponding path program 1 times [2019-12-07 13:35:14,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:35:14,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166980093] [2019-12-07 13:35:14,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:35:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:35:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 13:35:14,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166980093] [2019-12-07 13:35:14,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:35:14,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:35:14,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542233100] [2019-12-07 13:35:14,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:35:14,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:35:14,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:35:14,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:35:14,814 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-12-07 13:35:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:35:14,827 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-12-07 13:35:14,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:35:14,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 13:35:14,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:35:14,828 INFO L225 Difference]: With dead ends: 13 [2019-12-07 13:35:14,828 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:35:14,828 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:35:14,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:35:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:35:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:35:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:35:14,829 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 13:35:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:35:14,829 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:35:14,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:35:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:35:14,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:35:14,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:35:14,840 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-12-07 13:35:14,840 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point L13-2(lines 13 19) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:35:14,841 INFO L249 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: true [2019-12-07 13:35:14,842 INFO L246 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2019-12-07 13:35:14,842 INFO L242 CegarLoopResult]: At program point L14-2(lines 13 19) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~x~0) [2019-12-07 13:35:14,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:35:14 BoogieIcfgContainer [2019-12-07 13:35:14,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:35:14,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:35:14,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:35:14,853 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:35:14,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:35:14" (3/4) ... [2019-12-07 13:35:14,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:35:14,862 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 13:35:14,862 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 13:35:14,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a150b40b-4e01-46d8-a66c-e0fc4f454037/bin/uautomizer/witness.graphml [2019-12-07 13:35:14,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:35:14,891 INFO L168 Benchmark]: Toolchain (without parser) took 713.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 942.5 MB in the beginning and 1.0 GB in the end (delta: -96.8 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:14,891 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:35:14,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:14,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.77 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 13:35:14,892 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 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 13:35:14,892 INFO L168 Benchmark]: RCFGBuilder took 144.56 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:14,893 INFO L168 Benchmark]: TraceAbstraction took 330.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:14,893 INFO L168 Benchmark]: Witness Printer took 36.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:35:14,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.77 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 11.78 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 144.56 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 330.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB 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.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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...