./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c 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/HarrisLalNoriRajamani-SAS2010-Fig2.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 6ff697c57265298ce2261966fa58c440777fc865 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-11-28 20:24:24,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:24:24,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:24:25,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:24:25,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:24:25,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:24:25,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:24:25,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:24:25,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:24:25,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:24:25,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:24:25,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:24:25,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:24:25,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:24:25,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:24:25,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:24:25,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:24:25,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:24:25,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:24:25,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:24:25,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:24:25,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:24:25,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:24:25,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:24:25,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:24:25,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:24:25,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:24:25,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:24:25,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:24:25,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:24:25,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:24:25,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:24:25,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:24:25,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:24:25,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:24:25,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:24:25,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:24:25,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:24:25,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:24:25,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:24:25,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:24:25,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:24:25,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:24:25,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:24:25,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:24:25,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:24:25,107 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:24:25,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:24:25,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:24:25,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:24:25,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:24:25,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:24:25,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:24:25,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:24:25,109 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:24:25,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:24:25,110 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:24:25,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:24:25,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:24:25,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:24:25,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:24:25,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:24:25,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:24:25,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:24:25,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:24:25,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:24:25,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:24:25,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:24:25,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:24:25,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:24:25,114 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 -> 6ff697c57265298ce2261966fa58c440777fc865 [2019-11-28 20:24:25,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:24:25,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:24:25,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:24:25,432 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:24:25,432 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:24:25,433 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-28 20:24:25,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc37061f0/f6b2e71a68054f54a5f2bfc3c0704531/FLAG61402559c [2019-11-28 20:24:25,936 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:24:25,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-28 20:24:25,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc37061f0/f6b2e71a68054f54a5f2bfc3c0704531/FLAG61402559c [2019-11-28 20:24:26,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc37061f0/f6b2e71a68054f54a5f2bfc3c0704531 [2019-11-28 20:24:26,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:24:26,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:24:26,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:24:26,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:24:26,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:24:26,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477caf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26, skipping insertion in model container [2019-11-28 20:24:26,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:24:26,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:24:26,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:24:26,535 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:24:26,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:24:26,571 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:24:26,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26 WrapperNode [2019-11-28 20:24:26,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:24:26,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:24:26,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:24:26,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:24:26,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:24:26,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:24:26,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:24:26,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:24:26,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (1/1) ... [2019-11-28 20:24:26,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:24:26,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:24:26,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:24:26,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:24:26,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (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 [2019-11-28 20:24:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:24:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:24:27,251 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:24:27,251 INFO L287 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-28 20:24:27,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:27 BoogieIcfgContainer [2019-11-28 20:24:27,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:24:27,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:24:27,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:24:27,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:24:27,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:24:26" (1/3) ... [2019-11-28 20:24:27,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba8bbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:27, skipping insertion in model container [2019-11-28 20:24:27,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:26" (2/3) ... [2019-11-28 20:24:27,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba8bbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:27, skipping insertion in model container [2019-11-28 20:24:27,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:27" (3/3) ... [2019-11-28 20:24:27,260 INFO L109 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-28 20:24:27,268 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:24:27,275 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 20:24:27,288 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 20:24:27,315 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:24:27,315 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:24:27,315 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:24:27,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:24:27,316 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:24:27,316 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:24:27,316 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:24:27,316 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:24:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-11-28 20:24:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 20:24:27,340 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:27,341 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 20:24:27,341 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:27,347 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-28 20:24:27,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:27,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807586272] [2019-11-28 20:24:27,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:27,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:27,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807586272] [2019-11-28 20:24:27,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:27,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:27,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505752418] [2019-11-28 20:24:27,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:27,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:27,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:27,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:27,517 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2019-11-28 20:24:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:27,600 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2019-11-28 20:24:27,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:27,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-28 20:24:27,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:27,613 INFO L225 Difference]: With dead ends: 69 [2019-11-28 20:24:27,613 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 20:24:27,616 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 [2019-11-28 20:24:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 20:24:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 20:24:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 20:24:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2019-11-28 20:24:27,660 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 3 [2019-11-28 20:24:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:27,660 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2019-11-28 20:24:27,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:27,661 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2019-11-28 20:24:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 20:24:27,661 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:27,661 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 20:24:27,662 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:27,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2019-11-28 20:24:27,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:27,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449074508] [2019-11-28 20:24:27,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:27,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449074508] [2019-11-28 20:24:27,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:27,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:27,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253978063] [2019-11-28 20:24:27,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:27,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:27,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:27,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:27,685 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand 3 states. [2019-11-28 20:24:27,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:27,736 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2019-11-28 20:24:27,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:27,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 20:24:27,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:27,738 INFO L225 Difference]: With dead ends: 113 [2019-11-28 20:24:27,738 INFO L226 Difference]: Without dead ends: 111 [2019-11-28 20:24:27,739 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 [2019-11-28 20:24:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-28 20:24:27,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2019-11-28 20:24:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 20:24:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2019-11-28 20:24:27,755 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 4 [2019-11-28 20:24:27,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:27,756 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2019-11-28 20:24:27,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:27,756 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2019-11-28 20:24:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:24:27,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:27,758 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:27,758 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:27,759 INFO L82 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2019-11-28 20:24:27,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:27,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91680895] [2019-11-28 20:24:27,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:27,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91680895] [2019-11-28 20:24:27,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:27,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:27,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364476768] [2019-11-28 20:24:27,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:27,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:27,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:27,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:27,824 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 3 states. [2019-11-28 20:24:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:27,892 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2019-11-28 20:24:27,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:27,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-28 20:24:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:27,895 INFO L225 Difference]: With dead ends: 110 [2019-11-28 20:24:27,895 INFO L226 Difference]: Without dead ends: 109 [2019-11-28 20:24:27,897 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 [2019-11-28 20:24:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-28 20:24:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-11-28 20:24:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 20:24:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2019-11-28 20:24:27,926 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 14 [2019-11-28 20:24:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:27,927 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2019-11-28 20:24:27,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2019-11-28 20:24:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:24:27,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:27,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:27,931 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:27,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:27,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1015374612, now seen corresponding path program 1 times [2019-11-28 20:24:27,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:27,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058365271] [2019-11-28 20:24:27,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:28,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058365271] [2019-11-28 20:24:28,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:28,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:28,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133617486] [2019-11-28 20:24:28,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:24:28,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:28,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:24:28,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:24:28,029 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand 4 states. [2019-11-28 20:24:28,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:28,098 INFO L93 Difference]: Finished difference Result 108 states and 175 transitions. [2019-11-28 20:24:28,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:24:28,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-28 20:24:28,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:28,102 INFO L225 Difference]: With dead ends: 108 [2019-11-28 20:24:28,102 INFO L226 Difference]: Without dead ends: 107 [2019-11-28 20:24:28,103 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 [2019-11-28 20:24:28,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-28 20:24:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-28 20:24:28,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-28 20:24:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2019-11-28 20:24:28,131 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 15 [2019-11-28 20:24:28,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:28,131 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2019-11-28 20:24:28,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:24:28,132 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2019-11-28 20:24:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:24:28,134 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:28,135 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:28,135 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:28,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:28,136 INFO L82 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2019-11-28 20:24:28,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:28,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039861213] [2019-11-28 20:24:28,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:28,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:28,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039861213] [2019-11-28 20:24:28,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:28,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:28,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870587511] [2019-11-28 20:24:28,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:24:28,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:28,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:24:28,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:24:28,220 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand 4 states. [2019-11-28 20:24:28,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:28,274 INFO L93 Difference]: Finished difference Result 115 states and 182 transitions. [2019-11-28 20:24:28,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:24:28,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-28 20:24:28,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:28,277 INFO L225 Difference]: With dead ends: 115 [2019-11-28 20:24:28,277 INFO L226 Difference]: Without dead ends: 114 [2019-11-28 20:24:28,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:24:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-28 20:24:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2019-11-28 20:24:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-28 20:24:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2019-11-28 20:24:28,301 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 16 [2019-11-28 20:24:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:28,302 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2019-11-28 20:24:28,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:24:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2019-11-28 20:24:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:24:28,304 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:28,304 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:28,305 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:28,306 INFO L82 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2019-11-28 20:24:28,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:28,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881333950] [2019-11-28 20:24:28,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:28,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881333950] [2019-11-28 20:24:28,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:28,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:28,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084282004] [2019-11-28 20:24:28,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:24:28,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:28,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:24:28,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:24:28,385 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand 4 states. [2019-11-28 20:24:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:28,438 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2019-11-28 20:24:28,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:24:28,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-28 20:24:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:28,440 INFO L225 Difference]: With dead ends: 110 [2019-11-28 20:24:28,441 INFO L226 Difference]: Without dead ends: 109 [2019-11-28 20:24:28,441 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:24:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-28 20:24:28,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2019-11-28 20:24:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 20:24:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2019-11-28 20:24:28,450 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2019-11-28 20:24:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:28,451 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2019-11-28 20:24:28,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:24:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2019-11-28 20:24:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:24:28,453 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:28,453 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:28,454 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:28,454 INFO L82 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2019-11-28 20:24:28,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:28,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462838694] [2019-11-28 20:24:28,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:28,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462838694] [2019-11-28 20:24:28,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028230801] [2019-11-28 20:24:28,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:24:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:28,544 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:24:28,550 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:24:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:28,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 20:24:28,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2019-11-28 20:24:28,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021157733] [2019-11-28 20:24:28,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:24:28,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:28,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:24:28,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:24:28,606 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 4 states. [2019-11-28 20:24:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:28,645 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2019-11-28 20:24:28,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:24:28,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-28 20:24:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:28,647 INFO L225 Difference]: With dead ends: 113 [2019-11-28 20:24:28,647 INFO L226 Difference]: Without dead ends: 106 [2019-11-28 20:24:28,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:24:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-28 20:24:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-28 20:24:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 20:24:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2019-11-28 20:24:28,657 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2019-11-28 20:24:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:28,657 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2019-11-28 20:24:28,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:24:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2019-11-28 20:24:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:24:28,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:28,659 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:28,864 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:24:28,865 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2019-11-28 20:24:28,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:28,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638869920] [2019-11-28 20:24:28,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:24:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:24:28,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:24:28,922 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:24:28,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:24:28 BoogieIcfgContainer [2019-11-28 20:24:28,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:24:28,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:24:28,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:24:28,940 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:24:28,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:27" (3/4) ... [2019-11-28 20:24:28,943 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:24:28,984 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:24:28,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:24:28,987 INFO L168 Benchmark]: Toolchain (without parser) took 2662.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -49.7 MB). Peak memory consumption was 96.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,987 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:24:28,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,990 INFO L168 Benchmark]: Boogie Preprocessor took 55.34 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,990 INFO L168 Benchmark]: RCFGBuilder took 515.87 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,991 INFO L168 Benchmark]: TraceAbstraction took 1685.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:28,992 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:24:28,996 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 108.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.34 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 515.87 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1685.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.17 ms. Allocated memory is still 1.2 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: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 6 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 587 SDtfs, 719 SDslu, 560 SDs, 0 SdLazy, 119 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 6024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...