./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 f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-f6fb2bb [2019-11-19 19:53:03,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:53:03,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:53:03,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:53:03,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:53:03,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:53:03,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:53:03,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:53:03,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:53:03,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:53:03,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:53:03,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:53:03,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:53:03,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:53:03,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:53:03,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:53:03,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:53:03,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:53:03,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:53:03,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:53:03,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:53:03,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:53:03,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:53:03,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:53:03,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:53:03,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:53:03,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:53:03,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:53:03,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:53:03,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:53:03,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:53:03,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:53:03,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:53:03,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:53:03,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:53:03,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:53:03,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:53:03,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:53:03,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:53:03,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:53:03,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:53:03,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 19:53:03,626 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:53:03,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:53:03,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:53:03,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:53:03,629 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:53:03,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:53:03,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:53:03,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:53:03,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:53:03,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:53:03,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:53:03,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:53:03,631 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 19:53:03,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:53:03,632 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:53:03,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:53:03,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:53:03,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:53:03,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:53:03,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:53:03,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:03,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:53:03,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:53:03,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:53:03,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:53:03,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:53:03,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:53:03,636 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2019-11-19 19:53:03,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:53:03,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:53:03,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:53:03,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:53:03,964 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:53:03,964 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-11-19 19:53:04,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf14f2a5/3f618d733bd1451497974c2adbe05473/FLAG6ed6308bd [2019-11-19 19:53:04,526 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:53:04,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-11-19 19:53:04,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf14f2a5/3f618d733bd1451497974c2adbe05473/FLAG6ed6308bd [2019-11-19 19:53:04,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf14f2a5/3f618d733bd1451497974c2adbe05473 [2019-11-19 19:53:04,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:53:04,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:53:04,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:04,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:53:04,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:53:04,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:04" (1/1) ... [2019-11-19 19:53:04,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ebec32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:04, skipping insertion in model container [2019-11-19 19:53:04,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:04" (1/1) ... [2019-11-19 19:53:04,951 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:53:04,972 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:53:05,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:05,134 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:53:05,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:05,159 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:53:05,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05 WrapperNode [2019-11-19 19:53:05,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:05,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:05,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:53:05,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:53:05,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:05,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:53:05,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:53:05,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:53:05,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... [2019-11-19 19:53:05,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:53:05,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:53:05,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:53:05,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:53:05,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 19:53:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:53:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:53:05,532 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:53:05,532 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 19:53:05,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:05 BoogieIcfgContainer [2019-11-19 19:53:05,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:53:05,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:53:05,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:53:05,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:53:05,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:04" (1/3) ... [2019-11-19 19:53:05,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3682012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:05, skipping insertion in model container [2019-11-19 19:53:05,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:05" (2/3) ... [2019-11-19 19:53:05,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3682012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:05, skipping insertion in model container [2019-11-19 19:53:05,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:05" (3/3) ... [2019-11-19 19:53:05,543 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-11-19 19:53:05,553 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:53:05,558 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-19 19:53:05,567 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-19 19:53:05,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:53:05,590 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:53:05,590 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:53:05,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:53:05,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:53:05,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:53:05,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:53:05,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:53:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-19 19:53:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 19:53:05,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:05,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 19:53:05,612 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:05,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:05,619 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-19 19:53:05,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:05,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005191366] [2019-11-19 19:53:05,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:05,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005191366] [2019-11-19 19:53:05,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:05,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:05,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110010061] [2019-11-19 19:53:05,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:05,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:05,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:05,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:05,825 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-11-19 19:53:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:06,003 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-19 19:53:06,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:06,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-19 19:53:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:06,024 INFO L225 Difference]: With dead ends: 26 [2019-11-19 19:53:06,024 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 19:53:06,028 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 [2019-11-19 19:53:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 19:53:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 19:53:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 19:53:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-11-19 19:53:06,077 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 3 [2019-11-19 19:53:06,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:06,077 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-11-19 19:53:06,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:06,078 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-11-19 19:53:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 19:53:06,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:06,079 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 19:53:06,082 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:06,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:06,084 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-19 19:53:06,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:06,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648016165] [2019-11-19 19:53:06,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:06,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648016165] [2019-11-19 19:53:06,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:06,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 19:53:06,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925248299] [2019-11-19 19:53:06,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:53:06,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:06,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:53:06,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:53:06,153 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2019-11-19 19:53:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:06,207 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-19 19:53:06,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:53:06,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 19:53:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:06,209 INFO L225 Difference]: With dead ends: 29 [2019-11-19 19:53:06,209 INFO L226 Difference]: Without dead ends: 28 [2019-11-19 19:53:06,210 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 [2019-11-19 19:53:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-19 19:53:06,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-11-19 19:53:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 19:53:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-19 19:53:06,216 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 4 [2019-11-19 19:53:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:06,217 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-19 19:53:06,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:53:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-19 19:53:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 19:53:06,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:06,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 19:53:06,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:06,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:06,219 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-11-19 19:53:06,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:06,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709993050] [2019-11-19 19:53:06,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:53:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:53:06,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709993050] [2019-11-19 19:53:06,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:53:06,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:53:06,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874284376] [2019-11-19 19:53:06,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:53:06,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:53:06,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:53:06,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:53:06,267 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-11-19 19:53:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:53:06,388 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-11-19 19:53:06,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 19:53:06,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 19:53:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:53:06,390 INFO L225 Difference]: With dead ends: 30 [2019-11-19 19:53:06,390 INFO L226 Difference]: Without dead ends: 28 [2019-11-19 19:53:06,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:53:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-19 19:53:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2019-11-19 19:53:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 19:53:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-19 19:53:06,396 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2019-11-19 19:53:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:53:06,397 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-19 19:53:06,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:53:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-19 19:53:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 19:53:06,398 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:06,398 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 19:53:06,400 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:53:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:06,401 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-11-19 19:53:06,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:06,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965404663] [2019-11-19 19:53:06,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:06,465 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:53:06,465 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:53:06,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:53:06 BoogieIcfgContainer [2019-11-19 19:53:06,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:53:06,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:53:06,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:53:06,483 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:53:06,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:05" (3/4) ... [2019-11-19 19:53:06,486 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 19:53:06,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:53:06,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:53:06,534 INFO L168 Benchmark]: Toolchain (without parser) took 1600.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -87.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,534 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:06,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.24 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,538 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,538 INFO L168 Benchmark]: RCFGBuilder took 254.49 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,539 INFO L168 Benchmark]: TraceAbstraction took 947.33 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:06,540 INFO L168 Benchmark]: Witness Printer took 48.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:06,544 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.24 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 254.49 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 947.33 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. * Witness Printer took 48.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 34 SDslu, 15 SDs, 0 SdLazy, 74 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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...