./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c -s /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/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 84b0699039fdd709a3306cfa354f9fcc70db171e ............................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:55,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:55,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:55,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:55,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:55,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:55,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:55,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:55,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:55,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:55,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:55,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:55,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:55,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:55,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:55,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:55,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:55,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:55,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:55,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:55,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:55,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:55,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:55,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:55,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:55,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:55,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:55,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:55,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:55,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:55,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:55,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:55,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:55,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:55,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:55,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:55,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:55,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:55,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:55,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:55,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:55,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 08:55:55,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:55,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:55,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:55,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:55,776 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:55,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:55,776 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:55,777 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:55:55,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:55,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:55,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:55,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:55,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:55,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:55,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:55,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:55,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:55,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:55,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:55,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:55,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:55,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:55,781 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/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/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 -> 84b0699039fdd709a3306cfa354f9fcc70db171e [2019-10-22 08:55:55,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:55,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:55,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:55,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:55,825 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:55,826 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-10-22 08:55:55,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/data/e3604a2b6/3996586cde1744aba52adabb5f815531/FLAG4b588ed15 [2019-10-22 08:55:56,259 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:56,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-10-22 08:55:56,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/data/e3604a2b6/3996586cde1744aba52adabb5f815531/FLAG4b588ed15 [2019-10-22 08:55:56,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/data/e3604a2b6/3996586cde1744aba52adabb5f815531 [2019-10-22 08:55:56,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:56,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:56,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:56,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:56,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:56,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69750992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,298 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:56,318 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:56,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:56,509 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:56,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:56,604 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:56,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56 WrapperNode [2019-10-22 08:55:56,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:56,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:56,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:56,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:56,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:56,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:56,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:56,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:56,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:56,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:56,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:56,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:56,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/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 [2019-10-22 08:55:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:56,853 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:56,853 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:55:56,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56 BoogieIcfgContainer [2019-10-22 08:55:56,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:56,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:56,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:56,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:56,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:56" (1/3) ... [2019-10-22 08:55:56,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8381765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (2/3) ... [2019-10-22 08:55:56,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8381765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/3) ... [2019-10-22 08:55:56,865 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-10-22 08:55:56,874 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:56,881 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 08:55:56,891 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 08:55:56,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:56,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:56,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:56,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:56,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:56,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:56,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:56,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-22 08:55:56,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:55:56,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:56,934 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:55:56,936 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:55:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:56,942 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-10-22 08:55:56,950 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:56,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63292693] [2019-10-22 08:55:56,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63292693] [2019-10-22 08:55:57,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:55:57,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116761511] [2019-10-22 08:55:57,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:57,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:57,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:57,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:57,117 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-10-22 08:55:57,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,165 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-10-22 08:55:57,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:57,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-10-22 08:55:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,175 INFO L225 Difference]: With dead ends: 26 [2019-10-22 08:55:57,176 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 08:55:57,178 INFO L600 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 [2019-10-22 08:55:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 08:55:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-22 08:55:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-22 08:55:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-10-22 08:55:57,209 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 3 [2019-10-22 08:55:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,210 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-10-22 08:55:57,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-10-22 08:55:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:55:57,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,210 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:55:57,211 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:55:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,211 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-10-22 08:55:57,212 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,212 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566971152] [2019-10-22 08:55:57,212 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,212 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566971152] [2019-10-22 08:55:57,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 08:55:57,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427439718] [2019-10-22 08:55:57,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:57,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:57,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:57,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:57,253 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2019-10-22 08:55:57,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,320 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-10-22 08:55:57,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:57,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 08:55:57,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,322 INFO L225 Difference]: With dead ends: 29 [2019-10-22 08:55:57,322 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 08:55:57,323 INFO L600 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 [2019-10-22 08:55:57,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 08:55:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-10-22 08:55:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 08:55:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-10-22 08:55:57,328 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 4 [2019-10-22 08:55:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,328 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-10-22 08:55:57,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-10-22 08:55:57,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:55:57,329 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,329 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:55:57,329 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:55:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-10-22 08:55:57,342 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,342 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322846759] [2019-10-22 08:55:57,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322846759] [2019-10-22 08:55:57,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:55:57,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707657544] [2019-10-22 08:55:57,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:57,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:57,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:57,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:57,395 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-10-22 08:55:57,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,495 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-10-22 08:55:57,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:57,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 08:55:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,496 INFO L225 Difference]: With dead ends: 30 [2019-10-22 08:55:57,497 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 08:55:57,497 INFO L600 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 [2019-10-22 08:55:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 08:55:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2019-10-22 08:55:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 08:55:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-10-22 08:55:57,501 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2019-10-22 08:55:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,501 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-10-22 08:55:57,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-10-22 08:55:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:55:57,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,502 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:57,503 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:55:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,503 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-10-22 08:55:57,503 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,503 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794498755] [2019-10-22 08:55:57,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:57,540 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:57,541 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:57,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:57 BoogieIcfgContainer [2019-10-22 08:55:57,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:57,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:57,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:57,557 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:57,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/4) ... [2019-10-22 08:55:57,559 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:55:57,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_be8a467a-95e2-4f69-a1e9-8ecaef34afb1/bin/uautomizer/witness.graphml [2019-10-22 08:55:57,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:57,593 INFO L168 Benchmark]: Toolchain (without parser) took 1312.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:57,594 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:57,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:57,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:57,595 INFO L168 Benchmark]: Boogie Preprocessor took 19.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:57,596 INFO L168 Benchmark]: RCFGBuilder took 195.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:57,596 INFO L168 Benchmark]: TraceAbstraction took 700.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:57,597 INFO L168 Benchmark]: Witness Printer took 35.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:57,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 195.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 700.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. * Witness Printer took 35.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, n; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] n = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 && x < n [L28] EXPR -x [L28] -x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 34 SDslu, 15 SDs, 0 SdLazy, 74 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...