./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/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 8920989884f6f43fe034219867b1db3db8f5287c .............................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-28 03:10:49,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:49,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:49,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:49,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:49,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:49,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:49,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:49,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:49,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:49,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:49,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:49,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:49,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:49,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:49,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:49,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:49,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:49,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:49,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:49,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:49,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:49,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:49,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:49,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:49,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:49,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:49,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:49,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:49,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:49,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:49,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:49,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:49,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:49,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:49,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:49,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:49,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:49,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:49,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:49,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:49,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:10:49,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:49,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:49,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:49,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:49,651 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:49,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:49,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:10:49,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:49,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:49,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:10:49,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:10:49,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:10:49,652 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:10:49,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:49,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:49,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:10:49,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:49,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:49,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:10:49,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:10:49,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:49,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:49,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:10:49,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:10:49,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:49,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:10:49,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:10:49,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:49,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8920989884f6f43fe034219867b1db3db8f5287c [2020-11-28 03:10:49,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:49,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:49,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:49,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:49,921 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:49,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2020-11-28 03:10:49,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/data/ed080d0de/55650b10ad5341aca001efaf58bddce5/FLAG0dea75457 [2020-11-28 03:10:50,428 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:50,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2020-11-28 03:10:50,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/data/ed080d0de/55650b10ad5341aca001efaf58bddce5/FLAG0dea75457 [2020-11-28 03:10:50,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/data/ed080d0de/55650b10ad5341aca001efaf58bddce5 [2020-11-28 03:10:50,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:50,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:50,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:50,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:50,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:50,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:50" (1/1) ... [2020-11-28 03:10:50,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d54c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50, skipping insertion in model container [2020-11-28 03:10:50,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:50" (1/1) ... [2020-11-28 03:10:50,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:50,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:51,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:51,016 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:51,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:51,072 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:51,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51 WrapperNode [2020-11-28 03:10:51,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:51,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:51,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:51,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:51,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:51,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:51,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:51,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:51,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:51,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:51,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:51,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:51,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/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 [2020-11-28 03:10:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:51,562 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:51,562 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:10:51,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:51 BoogieIcfgContainer [2020-11-28 03:10:51,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:51,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:10:51,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:10:51,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:10:51,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:50" (1/3) ... [2020-11-28 03:10:51,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a7c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:51, skipping insertion in model container [2020-11-28 03:10:51,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51" (2/3) ... [2020-11-28 03:10:51,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a7c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:51, skipping insertion in model container [2020-11-28 03:10:51,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:51" (3/3) ... [2020-11-28 03:10:51,578 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2020-11-28 03:10:51,598 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:10:51,607 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-11-28 03:10:51,618 INFO L253 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-11-28 03:10:51,646 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:10:51,647 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:10:51,647 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:10:51,647 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:51,647 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:51,648 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:10:51,650 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:51,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:10:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-28 03:10:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:10:51,689 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:51,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:10:51,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:51,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:51,699 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-28 03:10:51,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:51,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937580007] [2020-11-28 03:10:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:51,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937580007] [2020-11-28 03:10:51,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:51,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:10:51,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949841396] [2020-11-28 03:10:51,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:51,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:51,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:51,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:51,898 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-11-28 03:10:52,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:52,099 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2020-11-28 03:10:52,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:52,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 03:10:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:52,111 INFO L225 Difference]: With dead ends: 99 [2020-11-28 03:10:52,112 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 03:10:52,118 INFO L677 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 [2020-11-28 03:10:52,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 03:10:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-11-28 03:10:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-28 03:10:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-11-28 03:10:52,189 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 3 [2020-11-28 03:10:52,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:52,190 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-11-28 03:10:52,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-11-28 03:10:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:10:52,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:52,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:10:52,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:10:52,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:52,193 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-28 03:10:52,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:52,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196794214] [2020-11-28 03:10:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:52,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196794214] [2020-11-28 03:10:52,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:52,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:10:52,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335697045] [2020-11-28 03:10:52,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:52,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:52,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:52,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:52,237 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 3 states. [2020-11-28 03:10:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:52,316 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-11-28 03:10:52,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:52,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:10:52,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:52,319 INFO L225 Difference]: With dead ends: 44 [2020-11-28 03:10:52,319 INFO L226 Difference]: Without dead ends: 43 [2020-11-28 03:10:52,320 INFO L677 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 [2020-11-28 03:10:52,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-28 03:10:52,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-11-28 03:10:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-28 03:10:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-11-28 03:10:52,332 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 4 [2020-11-28 03:10:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:52,332 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-11-28 03:10:52,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-11-28 03:10:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:10:52,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:52,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:10:52,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:10:52,334 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:52,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:52,335 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-11-28 03:10:52,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:52,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524123318] [2020-11-28 03:10:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:52,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:52,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:52,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:52,385 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:10:52,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:10:52,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:52 BoogieIcfgContainer [2020-11-28 03:10:52,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:52,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:52,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:52,402 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:52,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:51" (3/4) ... [2020-11-28 03:10:52,405 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:10:52,435 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a8e4fef3-fb99-4ab7-b98f-ab1233e80ae0/bin/uautomizer/witness.graphml [2020-11-28 03:10:52,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:52,438 INFO L168 Benchmark]: Toolchain (without parser) took 1600.88 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 62.4 MB in the beginning and 63.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:52,438 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 90.2 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:52,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.62 ms. Allocated memory is still 90.2 MB. Free memory was 62.2 MB in the beginning and 69.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:52,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 90.2 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:52,440 INFO L168 Benchmark]: Boogie Preprocessor took 22.04 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 67.0 MB in the end (delta: 796.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:52,441 INFO L168 Benchmark]: RCFGBuilder took 428.42 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 52.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:52,441 INFO L168 Benchmark]: TraceAbstraction took 835.34 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 65.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:52,442 INFO L168 Benchmark]: Witness Printer took 33.73 ms. Allocated memory is still 109.1 MB. Free memory was 65.5 MB in the beginning and 63.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:52,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 90.2 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.62 ms. Allocated memory is still 90.2 MB. Free memory was 62.2 MB in the beginning and 69.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 90.2 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.04 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 67.0 MB in the end (delta: 796.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 428.42 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 52.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 835.34 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 65.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Witness Printer took 33.73 ms. Allocated memory is still 109.1 MB. Free memory was 65.5 MB in the beginning and 63.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 20 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 43 SDslu, 24 SDs, 0 SdLazy, 54 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...